Peter H Buschang
Biographic Data
| ID | 78098 |
|---|---|
| NAME | Peter H Buschang |
| GIVEN NAMES | Peter H |
| FAMILY NAME | Buschang |
| SIGNATURE | BUSCHANG P H |
| AFFILIATIONS | The University of Texas at Austin |
| ORCID | 0000-0003-4397-6815 |
| VERIFIED | Yes |
| TOTAL WORKS | 33 |
| TOTAL CITATIONS | 108 |
| AUTHOR COUNT | 33 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1980 |
| LATEST PUBLICATION YEAR | 2017 |
| H-INDEX | 6 |
Growth of the maxillary sinus in children and adolescents: A longitudinal study
Growth in root length of the mandibular canine and premolars in a mixed‐longitudinal orthodontic sample
Numerous studies of dental development focusing on eruption (clinical emergence) exist in the literature, but fewer studies examine dental development as a process extending across years or decades, and root development is commonly assessed using fractional root lengths. Here, we examine the growth of mandibular canine and premolar roots in a mixed‐longitudinal sample of orthodontic patients (77 females and 74 males) from north central Texas. Mul…
Overweight and obesity in a rural amerindian population in Oaxaca, Southern Mexico, 1968–2000
The purpose of this study was to evaluate secular change in the prevalence of overweight and obesity in a rural Zapotec Indian community in southern Mexico between 1968 and 2000. Cross‐sectional surveys of children 6–13 years, adolescents 13–17 years, and adults 19 years of age and older resident in a rural community in Oaxaca were conducted in 1968/1971, 1978, and 2000. Individuals present in the 1968, 1978, and 2000 surveys provided a small lon…
Craniofacial dimensions in children in rural Oaxaca, Southern Mexico: Secular change, 1968–2000
The objective of this investigation was to analyze the underlying cause(s) of secular changes in craniofacial dimensions among indigenous children in an isolated community in Oaxaca, southern Mexico, between 1968-2000. Subjects were schoolchildren resident in a rural, agrarian, Zapotec-speaking community in the Valley of Oaxaca, previously characterized as mildly-to-moderately undernourished with growth-stunting in 1968 and 1978. In 2000, childre…
Variation in longitudinal diaphyseal long bone growth in children three to ten years of age
Data from the Child Research Council (Denver, CO) were analyzed to model longitudinal growth changes in the humerus, radius, femur, and tibia in 31 boys and 36 girls between 3 and 10 years of age. Multilevel modeling of growth changes allowed efficient estimates of bone size and bone growth variation to be obtained as well as comparisons of growth patterns within and between limbs. The long bones displayed decelerating growth through time, with g…
Secular change in height, sitting height and leg length in rural Oaxaca, southern Mexico: 1968–2000
There are major secular increases in height, sitting height and estimated leg length of children and adolescents of both sexes since 1978. Secular gains in height are of similar magnitude in boys and girls 6-13 years, but are greater in adolescent and young adult males than females. The secular increase in height of young adults of both sexes is smaller than that among adolescents. Estimated leg length accounts for about 60% of the secular increa…
Anthropometric asymmetry in chronically undernourished children from Southern Mexico
In previous studies, environmental stress has been associated with increased structural asymmetry, indicating differential rates of development on either side of the median plane. To analyse the effect of environmental stress upon anthropometric asymmetry, six bilateral measurements and one derived measurement were compared between chronically mild-to-moderately undernourished school children (7-13 years of age) and a well-nourished control sampl…
Multilevel models for repeated measures: A flexible approach for studying dental arch morphology
Traditional OLS and recently developed multilevel IGLS statistical techniques for analyzing repeated measures are compared and contrasted. Comparisons are based on arch width measurements for a mixed‐longitudinal sample of 166 boys and girls. The multilevel IGLS procedures produce estimates that are more stable and meaningful than OLS estimates; sex differences are consistent for both the deciduous and permanent dentitions, maxillary widths are r…
Blood lead levels and growth status of children
Several studies have shown that elevated blood lead (Pb) levels in children are associated with decreased growth. Among 139 children aged 1 to 10 years (66 male, 73 female) who attended a Pb clinic in Dallas, Texas, growth was decreased by 1.6 cm in height, 1.4 kg in weight, and 0.6 cm in head circumference for each 10 μg/dl increase in blood Pb. Consistent with previously reported effects of Pb, several clinical symptoms (hearing deficit, dental…
Sibling similarity in annual growth increments in schoolchildren from a rural community in Oaxaca, Mexico
Sibling similarity in annual growth increments was analysed in schoolchildren, aged 6-13 years, from a Zapotec-speaking, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. Sibling correlations for 44 brother-brother, 44 sister-sister, and 110 unlike sex pairs were computed for 17 dimensions holding constant environmental effects, age difference between siblings, and the growth status of each sibling for the dimension. …
Technical error of mesiodistal diameters for the permanent and deciduous dentition
Method errors and reliabilities are given for mesiodistal measurements of the permanent and deciduous dentitions. Method errors, describing random measurement error, range between 0.04 and 0.12 mm. Reliabilities, describing the proportion of true variance to true plus error variance, are lowest for measurements taken on the canines. Mesiodistal measurements of the incisors are more reliable than those taken on the (pre)molars. The different relia…
Socioeconomic variation in estimated growth velocity of schoolchildren from a rural, subsistence agricultural community in southern Mexico
Socioeconomic variation in estimated growth velocities (annual growth increments) of several anthropometric dimensions was considered in schoolchildren from a rural, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. The children (114 males, 99 females), 6–13 years of age, were measured twice, approximately one year apart. Annual growth increments were computed by subtracting measurements taken in the fall of 1978 from…
Increased heterozygosity and child growth in an isolated subsistence agricultural community in the valley of Oaxaca, Mexico
Gene flow and rate of inbreeding (ΔF) were calculated from demographic data for a community previously reported to be isolated from out‐side genetic influences of immigration. Significant child growth differences caused by gene flow among children born to native parents (n = 287) and offspring of native‐immigrant matings (n = 38) were found in fatness (triceps skinfold), body proportions (sitting height ratio), and size (leg length). No differenc…
Pubertal growth of the cephalometric point gnathion: Multilevel models for boys and girls
Two‐level polynomial models are used to summarize the amount Sella‐Gnathion (S‐Gn) and direction Nasion‐Sella‐Gnathion (N‐S‐Gn) of growth changes for the cephalometric landmark gnathion. Growth descriptions pertain to a mixed longitudinal sample of 209 French‐Canadian children 10–15 years of age. The boy's growth curve attains mean minimum prepubertal velocity at 10.8 years and maximum pubertal velocity at 14.1 years. The girl's curve follows a c…
Sibling correlations for growth status in schoolchildren from a rural community in Oaxaca, Mexico
Sibling similarities in several anthropometric dimensions were examined in schoolchildren from a rural, agrarian Zapotec community in the Valley of Oaxaca in southern Mexico. The sample consisted of 44 brother, 44 sister, and 110 unlike-sex sibling pairs. Anthropometric dimensions included weight, height, limb circumferences, triceps skinfold, skeletal lengths, and craniofacial, trunk, and extremity breadths. Environmental effects were controlled…
Adaptive significance of small body size: Strength and motor performance of school children in Mexico and Papua New Guinea
The postulated superior functional efficiency in association with reduced body size under conditions of chronic protein‐energy undernutrition was considered in school children from rural Mexico and coastal Papua New Guinea. Grip strength and three measures of motor performance were measured in cross‐sectional samples of children 6–16 years of age from a rural agricultural community in Oaxaca, Mexico, and from the coastal community Pere on Manus I…
Linear growth of Zapotec schoolchildren: Growth status and yearly velocity for leg length and sitting height
The growth status and yearly growth velocity for sitting height and leg length of mild-to-moderately undernourished Zapotec schoolchildren from Oaxaca, Mexico, are described and compared with well-nourished black and white North American boys and girls. Zapotec children between 6 and 13 years of age are significantly smaller than their North American counterparts. Differences in sitting height between the three samples are maintained throughout t…
Genetic and environmental effects on growth of children from a subsistence agricultural community in Southern Mexico
Sibling correlations for size attained in height, weight, sitting height, estimated leg length, the triceps skinfold, arm circumference, and estimated midarm muscle circumference were compared in 6‐ through 13‐year‐old schoolchildren grouped by household socioeconomic status. The children were residents of a Zapotec‐speaking, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. Sibling pairs were classified as being from…
Sexual dimorphism in the emergence of deciduous teeth: Its relationship with growth components in height
Sexual dimorphism in the emergence of the deciduous dentition of French‐Canadian children may be explained by differences in recumbent length. Relative to the chronological age scale, boys are longer and their teeth emerge earlier than girls. Recumbent lengths attained at the exact age of emergence, as estimated by fifth‐order polynomials fitted to each subject's serial data, are comparable between the sexes. Multi‐ and univariate analyses of var…
Sexual dimorphism in mandibular growth of French‐Canadian children 6 to 10 years of age
Polynomial regression is used to model the mandibular growth of 28 girls and 26 boys who were followed longitudinally from 6 to 10 years of age. The pooled‐within individual designs indicate that ramus height follows a linear pattern of size increase; corpus and total mandibular lengths display curvilineal, decelerating, patterns of growth over the age range. Multivariate analyses of variance reveal significant sex differences in size, favoring b…
Socioeconomic variation in the growth status of children in a subsistence agricultural community
Socioeconomic variation in the growth status of 293 children, 6 through 13 years of age, from a rural subsistence agricultural community in southern Mexico was considered. Socioeconomic status was based on an index developed from landholdings, household goods, and occupation, and households were classified as high and low status. Growth measurements included weight, stature, sitting height, estimated leg length, arm and estimated arm muscle circu…
Anthropometric asymmetry in normal and mentally retarded males
Anthropometric asymmetry was considered in a sample of 202 normal and about 200 mentally retarded males. In addition to height, 11 bilateral measurements of bone, soft tissue and strength were taken. Differences between bilateral measurements were analysed in terms of absolute and signed differences, and in terms of the differences corrected for height. Mentally retarded individuals show greater anthropometric asymmetry than normal individuals in…
Assortative mating for phenotypic characteristics in a Zapotec community in Oaxaca, Mexico
Assortative mating for age and several anthropometric characteristics is considered in a sample of 68–70 husband-wife pairs from a rural Zapotec-speaking community in the Valley of Oaxaca in southern Mexico. Conditions in the community with a population of approximately 1700 indicate chronic, mild-to-moderate undernutrition as reflected in high infant mortality rates, smaller body size of school children, and delayed biological maturation. Phenot…
Adult stature and age at menarche in Zapotec‐speaking communities in the Valley of Oaxaca, Mexico, in a secular perspective
Adult stature and the age at menarche among individuals from Zapotec‐speaking communities in the Valley of Oaxaca in southern Mexico are considered in a secular perspective. Four sets of observations are utilized: (1) adult stature in males and females from five rural communities; (2) age at menarche in adult women and school girls from a single rural community; (3) earlier studies of adult stature in the Valley of Oaxaca; and (4) estimated statu…
A craniofacial growth maturity gradient for males and females between 4 and 16 years of age
Differential growth of the craniofacial complex implies variation in ontogenetic patterns of development. This investigation quantifies the relative maturity—as defined by percent adult status—of nine cephalometric dimensions and stature. Analysis is based on 663 lateral cephalograms from a mixed longitudinal sample of 26 males and 25 females between 4 and 16 years of age. Graphic comparison of maturity status across the age range shows that vari…
Socioeconomic variation in the growth status of children in a subsistence agricultural community
Socioeconomic variation in the growth status of 293 children, 6 through 13 years of age, from a rural subsistence agricultural community in southern Mexico was considered. Socioeconomic status was based on an index developed from landholdings, household goods, and occupation, and households were classified as high and low status. Growth measurements included weight, stature, sitting height, estimated leg length, arm and estimated arm muscle circu…
Adult stature and age at menarche in Zapotec‐speaking communities in the Valley of Oaxaca, Mexico, in a secular perspective
Adult stature and the age at menarche among individuals from Zapotec‐speaking communities in the Valley of Oaxaca in southern Mexico are considered in a secular perspective. Four sets of observations are utilized: (1) adult stature in males and females from five rural communities; (2) age at menarche in adult women and school girls from a single rural community; (3) earlier studies of adult stature in the Valley of Oaxaca; and (4) estimated statu…
A craniofacial growth maturity gradient for males and females between 4 and 16 years of age
Differential growth of the craniofacial complex implies variation in ontogenetic patterns of development. This investigation quantifies the relative maturity—as defined by percent adult status—of nine cephalometric dimensions and stature. Analysis is based on 663 lateral cephalograms from a mixed longitudinal sample of 26 males and 25 females between 4 and 16 years of age. Graphic comparison of maturity status across the age range shows that vari…
Aging in selected anthropometric dimensions in a rural Zapotec-speaking community in the Valley of Oaxaca, Mexico
Craniofacial dimensions in children in rural Oaxaca, Southern Mexico: Secular change, 1968–2000
The objective of this investigation was to analyze the underlying cause(s) of secular changes in craniofacial dimensions among indigenous children in an isolated community in Oaxaca, southern Mexico, between 1968-2000. Subjects were schoolchildren resident in a rural, agrarian, Zapotec-speaking community in the Valley of Oaxaca, previously characterized as mildly-to-moderately undernourished with growth-stunting in 1968 and 1978. In 2000, childre…
Differential long bone growth of children between two months and eleven years of age
Diaphyseal lengths of the humerus, radius, femur and tibia of upper‐middle class White children between two months and 11 years of age show positive allometric growth, indicating substantial shape or proportional change. The segments of the lower extremity display greater allometric increase than the humerus and radius; variation in relative growth within each extremity is small and inconsistent. Sex differences are consistent, with slightly grea…
Adaptive significance of small body size: Strength and motor performance of school children in Mexico and Papua New Guinea
The postulated superior functional efficiency in association with reduced body size under conditions of chronic protein‐energy undernutrition was considered in school children from rural Mexico and coastal Papua New Guinea. Grip strength and three measures of motor performance were measured in cross‐sectional samples of children 6–16 years of age from a rural agricultural community in Oaxaca, Mexico, and from the coastal community Pere on Manus I…
Genetic and environmental effects on growth of children from a subsistence agricultural community in Southern Mexico
Sibling correlations for size attained in height, weight, sitting height, estimated leg length, the triceps skinfold, arm circumference, and estimated midarm muscle circumference were compared in 6‐ through 13‐year‐old schoolchildren grouped by household socioeconomic status. The children were residents of a Zapotec‐speaking, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. Sibling pairs were classified as being from…
Increased heterozygosity and child growth in an isolated subsistence agricultural community in the valley of Oaxaca, Mexico
Gene flow and rate of inbreeding (ΔF) were calculated from demographic data for a community previously reported to be isolated from out‐side genetic influences of immigration. Significant child growth differences caused by gene flow among children born to native parents (n = 287) and offspring of native‐immigrant matings (n = 38) were found in fatness (triceps skinfold), body proportions (sitting height ratio), and size (leg length). No differenc…
Sexual dimorphism in mandibular growth of French‐Canadian children 6 to 10 years of age
Polynomial regression is used to model the mandibular growth of 28 girls and 26 boys who were followed longitudinally from 6 to 10 years of age. The pooled‐within individual designs indicate that ramus height follows a linear pattern of size increase; corpus and total mandibular lengths display curvilineal, decelerating, patterns of growth over the age range. Multivariate analyses of variance reveal significant sex differences in size, favoring b…
The effect of changes in muscle function and bone growth on muscle migration
The elastic sleeve model of the periosteum of a long bone presents the periosteum as a structure which, because it is attached to the epiphyses rather than the diaphysis, expands interstitially and equally at all points as the bone grows at its ends. Structures attached to the periosteum are seen as essentially passive hitchhikers on the expanding periosteum. Two corollaries of this model are tested here. First, that changes in the magnitude or d…
Pubertal growth of the cephalometric point gnathion: Multilevel models for boys and girls
Two‐level polynomial models are used to summarize the amount Sella‐Gnathion (S‐Gn) and direction Nasion‐Sella‐Gnathion (N‐S‐Gn) of growth changes for the cephalometric landmark gnathion. Growth descriptions pertain to a mixed longitudinal sample of 209 French‐Canadian children 10–15 years of age. The boy's growth curve attains mean minimum prepubertal velocity at 10.8 years and maximum pubertal velocity at 14.1 years. The girl's curve follows a c…
Sexual dimorphism in the emergence of deciduous teeth: Its relationship with growth components in height
Sexual dimorphism in the emergence of the deciduous dentition of French‐Canadian children may be explained by differences in recumbent length. Relative to the chronological age scale, boys are longer and their teeth emerge earlier than girls. Recumbent lengths attained at the exact age of emergence, as estimated by fifth‐order polynomials fitted to each subject's serial data, are comparable between the sexes. Multi‐ and univariate analyses of var…
Brachymesophalangia‐V in five samples of children: A descriptive and methodological study
The occurrence of brachymesophalangia‐V (BMP‐V) in 2,012 individuals from five samples of children of different ethnic backgrounds was determined using two indices. Frequencies of BMP‐V were analyzed for three variants: BMP‐V alone, BMP‐V with clinodactyly, and BMP‐V with a cone‐shaped epiphysis. The two indices used to identify BMP‐V indicated highest relative frequencies among Mexican children, moderate frequencies among children of European an…
Socioeconomic variation in estimated growth velocity of schoolchildren from a rural, subsistence agricultural community in southern Mexico
Socioeconomic variation in estimated growth velocities (annual growth increments) of several anthropometric dimensions was considered in schoolchildren from a rural, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. The children (114 males, 99 females), 6–13 years of age, were measured twice, approximately one year apart. Annual growth increments were computed by subtracting measurements taken in the fall of 1978 from…
Growth status of schoolchildren in a rural Zapotec community in the Valley of Oaxaca, Mexico, in 1968 and 1978
Stature, weight, arm circumference, triceps skinfold and estimated mid-arm muscle circumference were compared in schoolchildren, 6 to 14 years of age, in 1968 and 1978. The children were resident in a rural Zapotec-speaking community in the Valley of Oaxaca in southern Mexico. There were no differences in stature, weight and arm circumference over the ten-year period. Triceps skinfold and estimated mid-arm muscle circumference showed small, signi…
Brachymesophalangia‐V in five samples of children: A descriptive and methodological study
The occurrence of brachymesophalangia‐V (BMP‐V) in 2,012 individuals from five samples of children of different ethnic backgrounds was determined using two indices. Frequencies of BMP‐V were analyzed for three variants: BMP‐V alone, BMP‐V with clinodactyly, and BMP‐V with a cone‐shaped epiphysis. The two indices used to identify BMP‐V indicated highest relative frequencies among Mexican children, moderate frequencies among children of European an…
Growth of rural and urban children in the Valley of Oaxaca, Mexico
Weight, stature, arm circumference, and the triceps skinfold were measured in 1,410 school children, 6 through 14 years of age, from two urban colonias in the city of Oaxaca de Juarez (n = 479), and from two rural Ladino (n = 467) and two rural Zapotec (n = 464) communities in the Valley of Oaxaca in southern Mexico. Children from rural Ladino communities and urban colonias are significantly taller, heavier, and more muscular than children in rur…
Growth of rural and urban children in the valley of Oaxaca, Mexico
Weight, stature, arm circumference, and the triceps skinfold were measured in 1,410 school children, 6 through 14 years of age, from two urban colonias in the city of Oaxaca de Juarez (n = 479), and from two rural Ladino (n = 467) and two rural Zapotec (n = 464) communities in the Valley of Oaxaca in southern Mexico. Children from rural Ladino communities and urban colonias are significantly taller, heavier, and more muscular than children in rur…
The effect of changes in muscle function and bone growth on muscle migration
The elastic sleeve model of the periosteum of a long bone presents the periosteum as a structure which, because it is attached to the epiphyses rather than the diaphysis, expands interstitially and equally at all points as the bone grows at its ends. Structures attached to the periosteum are seen as essentially passive hitchhikers on the expanding periosteum. Two corollaries of this model are tested here. First, that changes in the magnitude or d…
The relative growth of the limb bones forHomo sapiens —As compared to anthropoid apes
Differential long bone growth of children between two months and eleven years of age
Diaphyseal lengths of the humerus, radius, femur and tibia of upper‐middle class White children between two months and 11 years of age show positive allometric growth, indicating substantial shape or proportional change. The segments of the lower extremity display greater allometric increase than the humerus and radius; variation in relative growth within each extremity is small and inconsistent. Sex differences are consistent, with slightly grea…
Aging in selected anthropometric dimensions in a rural Zapotec-speaking community in the Valley of Oaxaca, Mexico
Assortative mating for phenotypic characteristics in a Zapotec community in Oaxaca, Mexico
Assortative mating for age and several anthropometric characteristics is considered in a sample of 68–70 husband-wife pairs from a rural Zapotec-speaking community in the Valley of Oaxaca in southern Mexico. Conditions in the community with a population of approximately 1700 indicate chronic, mild-to-moderate undernutrition as reflected in high infant mortality rates, smaller body size of school children, and delayed biological maturation. Phenot…
Adult stature and age at menarche in Zapotec‐speaking communities in the Valley of Oaxaca, Mexico, in a secular perspective
Adult stature and the age at menarche among individuals from Zapotec‐speaking communities in the Valley of Oaxaca in southern Mexico are considered in a secular perspective. Four sets of observations are utilized: (1) adult stature in males and females from five rural communities; (2) age at menarche in adult women and school girls from a single rural community; (3) earlier studies of adult stature in the Valley of Oaxaca; and (4) estimated statu…
A craniofacial growth maturity gradient for males and females between 4 and 16 years of age
Differential growth of the craniofacial complex implies variation in ontogenetic patterns of development. This investigation quantifies the relative maturity—as defined by percent adult status—of nine cephalometric dimensions and stature. Analysis is based on 663 lateral cephalograms from a mixed longitudinal sample of 26 males and 25 females between 4 and 16 years of age. Graphic comparison of maturity status across the age range shows that vari…
Anthropometric asymmetry in normal and mentally retarded males
Anthropometric asymmetry was considered in a sample of 202 normal and about 200 mentally retarded males. In addition to height, 11 bilateral measurements of bone, soft tissue and strength were taken. Differences between bilateral measurements were analysed in terms of absolute and signed differences, and in terms of the differences corrected for height. Mentally retarded individuals show greater anthropometric asymmetry than normal individuals in…
Socioeconomic variation in the growth status of children in a subsistence agricultural community
Socioeconomic variation in the growth status of 293 children, 6 through 13 years of age, from a rural subsistence agricultural community in southern Mexico was considered. Socioeconomic status was based on an index developed from landholdings, household goods, and occupation, and households were classified as high and low status. Growth measurements included weight, stature, sitting height, estimated leg length, arm and estimated arm muscle circu…
Linear growth of Zapotec schoolchildren: Growth status and yearly velocity for leg length and sitting height
The growth status and yearly growth velocity for sitting height and leg length of mild-to-moderately undernourished Zapotec schoolchildren from Oaxaca, Mexico, are described and compared with well-nourished black and white North American boys and girls. Zapotec children between 6 and 13 years of age are significantly smaller than their North American counterparts. Differences in sitting height between the three samples are maintained throughout t…
Genetic and environmental effects on growth of children from a subsistence agricultural community in Southern Mexico
Sibling correlations for size attained in height, weight, sitting height, estimated leg length, the triceps skinfold, arm circumference, and estimated midarm muscle circumference were compared in 6‐ through 13‐year‐old schoolchildren grouped by household socioeconomic status. The children were residents of a Zapotec‐speaking, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. Sibling pairs were classified as being from…
Sexual dimorphism in the emergence of deciduous teeth: Its relationship with growth components in height
Sexual dimorphism in the emergence of the deciduous dentition of French‐Canadian children may be explained by differences in recumbent length. Relative to the chronological age scale, boys are longer and their teeth emerge earlier than girls. Recumbent lengths attained at the exact age of emergence, as estimated by fifth‐order polynomials fitted to each subject's serial data, are comparable between the sexes. Multi‐ and univariate analyses of var…
Sexual dimorphism in mandibular growth of French‐Canadian children 6 to 10 years of age
Polynomial regression is used to model the mandibular growth of 28 girls and 26 boys who were followed longitudinally from 6 to 10 years of age. The pooled‐within individual designs indicate that ramus height follows a linear pattern of size increase; corpus and total mandibular lengths display curvilineal, decelerating, patterns of growth over the age range. Multivariate analyses of variance reveal significant sex differences in size, favoring b…
Sibling correlations for growth status in schoolchildren from a rural community in Oaxaca, Mexico
Sibling similarities in several anthropometric dimensions were examined in schoolchildren from a rural, agrarian Zapotec community in the Valley of Oaxaca in southern Mexico. The sample consisted of 44 brother, 44 sister, and 110 unlike-sex sibling pairs. Anthropometric dimensions included weight, height, limb circumferences, triceps skinfold, skeletal lengths, and craniofacial, trunk, and extremity breadths. Environmental effects were controlled…
Adaptive significance of small body size: Strength and motor performance of school children in Mexico and Papua New Guinea
The postulated superior functional efficiency in association with reduced body size under conditions of chronic protein‐energy undernutrition was considered in school children from rural Mexico and coastal Papua New Guinea. Grip strength and three measures of motor performance were measured in cross‐sectional samples of children 6–16 years of age from a rural agricultural community in Oaxaca, Mexico, and from the coastal community Pere on Manus I…
Socioeconomic variation in estimated growth velocity of schoolchildren from a rural, subsistence agricultural community in southern Mexico
Socioeconomic variation in estimated growth velocities (annual growth increments) of several anthropometric dimensions was considered in schoolchildren from a rural, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. The children (114 males, 99 females), 6–13 years of age, were measured twice, approximately one year apart. Annual growth increments were computed by subtracting measurements taken in the fall of 1978 from…
Increased heterozygosity and child growth in an isolated subsistence agricultural community in the valley of Oaxaca, Mexico
Gene flow and rate of inbreeding (ΔF) were calculated from demographic data for a community previously reported to be isolated from out‐side genetic influences of immigration. Significant child growth differences caused by gene flow among children born to native parents (n = 287) and offspring of native‐immigrant matings (n = 38) were found in fatness (triceps skinfold), body proportions (sitting height ratio), and size (leg length). No differenc…
Pubertal growth of the cephalometric point gnathion: Multilevel models for boys and girls
Two‐level polynomial models are used to summarize the amount Sella‐Gnathion (S‐Gn) and direction Nasion‐Sella‐Gnathion (N‐S‐Gn) of growth changes for the cephalometric landmark gnathion. Growth descriptions pertain to a mixed longitudinal sample of 209 French‐Canadian children 10–15 years of age. The boy's growth curve attains mean minimum prepubertal velocity at 10.8 years and maximum pubertal velocity at 14.1 years. The girl's curve follows a c…
Technical error of mesiodistal diameters for the permanent and deciduous dentition
Method errors and reliabilities are given for mesiodistal measurements of the permanent and deciduous dentitions. Method errors, describing random measurement error, range between 0.04 and 0.12 mm. Reliabilities, describing the proportion of true variance to true plus error variance, are lowest for measurements taken on the canines. Mesiodistal measurements of the incisors are more reliable than those taken on the (pre)molars. The different relia…
Blood lead levels and growth status of children
Several studies have shown that elevated blood lead (Pb) levels in children are associated with decreased growth. Among 139 children aged 1 to 10 years (66 male, 73 female) who attended a Pb clinic in Dallas, Texas, growth was decreased by 1.6 cm in height, 1.4 kg in weight, and 0.6 cm in head circumference for each 10 μg/dl increase in blood Pb. Consistent with previously reported effects of Pb, several clinical symptoms (hearing deficit, dental…
Sibling similarity in annual growth increments in schoolchildren from a rural community in Oaxaca, Mexico
Sibling similarity in annual growth increments was analysed in schoolchildren, aged 6-13 years, from a Zapotec-speaking, subsistence agricultural community in the Valley of Oaxaca in southern Mexico. Sibling correlations for 44 brother-brother, 44 sister-sister, and 110 unlike sex pairs were computed for 17 dimensions holding constant environmental effects, age difference between siblings, and the growth status of each sibling for the dimension. …
Medicine (22 works) · Demography (21 works) · Geography (16 works) · Biology (13 works) · Sociology (13 works) · Child Nutrition and Water Access (10 works) · Mathematics (9 works) · Anthropometry (8 works) · Demography (8 works) · Forensic Anthropology and Bioarchaeology Studies (8 works)