Shumei Guo
Biographic Data
| ID | 4301033 |
|---|---|
| NAME | Shumei Guo |
| GIVEN NAMES | Shumei |
| FAMILY NAME | Guo |
| SIGNATURE | GUO S |
| AFFILIATIONS | Wright State University |
| VERIFIED | No |
| TOTAL WORKS | 23 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 23 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1989 |
| LATEST PUBLICATION YEAR | 2002 |
| H-INDEX | 0 |
Centers for Disease Control and Prevention 2000 Growth Charts for the United States
Objective. To present a clinical version of the 2000 Centers for Disease Control and Prevention (CDC) growth charts and to compare them with the previous version, the 1977 National Center for Health Statistics (NCHS) growth charts. Methods. The 2000 CDC percentile curves were developed in 2 stages. In the first stage, the empirical percentiles were smoothed by a variety of parametric and nonparametric procedures. To obtain corresponding percentil…
Predicting overweight and obesity in adulthood from body mass index values in childhood and adolescence
Assessing the body composition of 6-17-year-old black and white girls in field studies
The purpose of the study was to develop ethnic-specific equations for fat-free mass (FFM) from selected anthropometric dimensions and bioelectrical impedance measures of resistance (R) and reactance (Xc) for use in the NHLBI Growth and Heath Study. Using dual-energy X-ray absorptiometry measures of body composition as the dependent variable and field measures of body composition by anthropometry and bioelectrical impedance as the explanatory vari…
Assessing the body composition of 6–17‐year‐old black and white girls in field studies
The purpose of the study was to develop ethnic-specific equations for fat-free mass (FFM) from selected anthropometric dimensions and bioelectrical impedance measures of resistance (R) and reactance (Xc) for use in the NHLBI Growth and Heath Study. Using dual-energy X-ray absorptiometry measures of body composition as the dependent variable and field measures of body composition by anthropometry and bioelectrical impedance as the explanatory vari…
Statistical effects of varying sample sizes on the precision of percentile estimates
The present study evaluates the precision of outlying percentile estimates, with age- and sex-associated variations and facilitates decisions needed to revise the current NCHS 1977 Growth Charts with regard to 1) the inclusion of 3rd and 97th percentiles and 2) the selection of survey data for the construction of the revised growth charts. Simulation was performed to obtain data with distribution characteristics similar to those of The Third Nati…
Statistical effects of varying sample sizes on the precision of percentile estimates
The present study evaluates the precision of outlying percentile estimates, with age- and sex-associated variations and facilitates decisions needed to revise the current NCHS 1977 Growth Charts with regard to 1) the inclusion of 3(rd) and 97(th) percentiles and 2) the selection of survey data for the construction of the revised growth charts. Simulation was performed to obtain data with distribution characteristics similar to those of The Third …
Serial changes in blood pressure from childhood into young adulthood for females in relation to body mass index and maturational age
This study determines: (1) patterns of change from childhood to young adulthood in body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP), (2) effects of elevated BMI values on changes in blood pressures (BP), (3) extent of tracking for SBP, DBP, and BMI, and (4) prediction of future risk for elevated BP from earlier values. Annual serial BP and BMI data were available for 198 white females, ages 8–22 years, enro…
Serial changes in blood pressure from childhood into young adulthood for females in relation to body mass index and maturational age
This study determines: (1) patterns of change from childhood to young adulthood in body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP), (2) effects of elevated BMI values on changes in blood pressures (BP), (3) extent of tracking for SBP, DBP, and BMI, and (4) prediction of future risk for elevated BP from earlier values. Annual serial BP and BMI data were available for 198 white females, ages 8-22 years, enro…
Body Composition Techniques in Health and Disease
Relationship of skeletal age to limb composition during pubescence
The relationships between skeletal age (SA) and limb composition (arms, legs, and all four limbs) in terms of fat mass (FM), fat-free mass (FFM), muscle mass (MM) and bone mineral content (BMC) were investigated in 55 males and 53 females aged 9-15 years. The Fels method was used to assess hand-wrist SAs which were expressed as SA/chronological age (SA/CA). The limb composition data were obtained from a Lunar dual-energy x-ray absorptiometer usin…
Relationship of skeletal age to limb composition during pubescence
The relationships between skeletal age (SA) and limb composition (arms, legs, and all four limbs) in terms of fat mass (FM), fat-free mass (FFM), muscle mass (MM) and bone mineral content (BMC) were investigated in 55 males and 53 females aged 9–15 years. The Fels method was used to assess hand-wrist SAs which were expressed as SA/chronological age (SA/CA). The limb composition data were obtained from a Lunar dual-energy x-ray absorptiometer usin…
Head circumference for Mexican American infants and young children from the Hispanic health and nutrition examination survey (HHANES 1982–1984)
This study presents descriptive statistics for head circumference in Mexican American children 6 months to 7 years of age using data from the Hispanic Health and Nutrition Examination Survey (HHANES, 1982–1984) and compares these statistics with national estimates of head circumference for non‐Hispanic White children and non‐Hispanic Black children from the Second National Health and Nutrition Examination Survey (NHANES II, 1976–1980). Head circu…
Reliability for multiple frequency bioelectric impedance
Multifrequency impedance may help to quantify body fluid compartments and levels of hydration among individuals. Most studies of bioelectric impedance use impedance machines operating at a frequency of 50 kHz, and observer error is low. The present study evaluates multifrequency impedance measurements at 15 frequencies from 5 to 1,300 kHz to determine observer reliability in 20 White subjects of each sex, 18–65 years of age. Data were collected d…
Body composition measures from underwater weighing and dual energy X‐ray absorptiometry in black and white girls
The purpose of this study was to compare estimates of body composition in two ethnic groups, 31 black and 38 white girls 10 through 16 years of age, to establish accurate and precise laboratory standards for field measures of body composition in the NHLBI Growth and Health Study HC 55025. The dual energy X-ray absorptiometry (DXA) measures of fat free mass (FFM) and % body fat (%BF) were made using Hologic QDR-1000/W. Corresponding values of FFM …
Prediction of fat‐free mass in black and white pre‐adolescent and adolescent girls from anthropometry and impedance
As an ancillary project of the National Heart Lung and Blood Institute's Growth and Health Study (NGHS), data of 31 black girls and 38 white girls, 10–16 years of age, were used to develop equations to predict fat‐free mass (FFM) from selected anthropometric dimensions and bioelectric impedance measures of resistance and reactance. Subjects were drawn from ongoing projects at the Children's Hospital Medical Center (CHMC) to obtain girls of both r…
Family resemblance for Preece‐Baines growth curve parameters in the fels longitudinal growth study
The Preece‐Baines Model 1 (PB1) nonlinear regression equation was fit to serial stature measurements from 456 participants in the Fels Longitudinal Growth Study. The resulting model parameters and derived biological parameters, such as age, stature, and velocity at take‐off (TO) and peak velocity (PV) are analyzed for family resemblance in 228 nuclear families through estimation of familial correlations and path coefficients. Significant family r…
Improvement in the Roche‐Wainer‐Thissen stature prediction model
The Roche‐Wainer‐Thissen (RWT) prediction model, developed in 1975, predicts the adult stature of a child based on age, current stature, current weight, current skeletal age, and the average stature of the parents. Generally, the method has worked well; however, there are certain steps in the procedure that can be improved. Seven variations of the current version of the RWT prediction model are investigated and compared in terms of the accuracy a…
Mathematical modelling of human growth
Kernel regression is a nonparametric procedure that provides good approximations to individual serial data. The method is useful and flexible when a parametric method is inappropriate due to restricted assumptions on the shape of the curve. In the present study, we compared kernel regression in fitting human stature growth with two models, one of which incorporates the possible existence of the midgrowth spurt while the other does not. Two famili…
Development of reference data for increments in variables related to growth
This paper directs attention to the progress made during the last few decades in methods for the development of reference data for increments and in the application of such data. This progress is exemplified by analyses of increments in recumbent length during infancy based on data from the Fels Longitudinal Study that have led to the development of reference data that can be applied easily to individuals and groups. The methods used to develop i…
Family resemblance for patterns of growth in early childhood
Parameters of the Jenss curve representing linear and non‐linear components of growth in early childhood were fitted to longitudinal recumbent length and weight measurements from participants in the Fels Longitudinal Growth Study. Nuclear family correlations were estimated for each of four Jenss parameters (a linear intercept and slope and a non‐linear intercept and degree of curve) for length and for weight. The TAU path model was fit to the cor…
Model fitting to early childhood length and weight data from the fels longitudinal study of growth
Length and weight data from 3 months to 6 years of age from 466 participants in the Fels Longitudinal Study of Growth were used to fit the Jenss non‐linear growth curve. Six (1%) of the Fels participants had extremely outlying values for length parameters, and 20 (4%) had outlying values for weight parameters. The general pattern in the outliers is for average or below average size in infancy, followed by unusually rapid growth or weight gain in …
Monthy growth increments from a longitudinal study of Canadian infants
Reference data for 1 month increments in weight, recumbent length, and head circumference, at ages 1 to 12 months, have been derived from serial data for 351 full‐term Canadian infants. This derivation was achieved by (1) fitting a family of three parameter mathematical models to the data for each infant, (2) using these models to estimate values 1 month apart (3) calculating 1 month increments from the status values of 1 month intervals, (4) obt…
Sibling correlations for skeletal age assessments by the Fels method
Sibling correlations are reported for Fels skeletal ages from 2,622 mixed longitudinal hand‐wrist radiographs of 285 boys and 276 girls. Because the observed correlations were irregular across age, they were smoothed by using kernel regression. The brother‐sister correlations were generally lower than those for the other types of silbling pairs, but they were similar to the brother‐brother correlations after 11 years. The sister‐sister correlatio…
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Monthy growth increments from a longitudinal study of Canadian infants
Reference data for 1 month increments in weight, recumbent length, and head circumference, at ages 1 to 12 months, have been derived from serial data for 351 full‐term Canadian infants. This derivation was achieved by (1) fitting a family of three parameter mathematical models to the data for each infant, (2) using these models to estimate values 1 month apart (3) calculating 1 month increments from the status values of 1 month intervals, (4) obt…
Sibling correlations for skeletal age assessments by the Fels method
Sibling correlations are reported for Fels skeletal ages from 2,622 mixed longitudinal hand‐wrist radiographs of 285 boys and 276 girls. Because the observed correlations were irregular across age, they were smoothed by using kernel regression. The brother‐sister correlations were generally lower than those for the other types of silbling pairs, but they were similar to the brother‐brother correlations after 11 years. The sister‐sister correlatio…
Family resemblance for patterns of growth in early childhood
Parameters of the Jenss curve representing linear and non‐linear components of growth in early childhood were fitted to longitudinal recumbent length and weight measurements from participants in the Fels Longitudinal Growth Study. Nuclear family correlations were estimated for each of four Jenss parameters (a linear intercept and slope and a non‐linear intercept and degree of curve) for length and for weight. The TAU path model was fit to the cor…
Model fitting to early childhood length and weight data from the fels longitudinal study of growth
Length and weight data from 3 months to 6 years of age from 466 participants in the Fels Longitudinal Study of Growth were used to fit the Jenss non‐linear growth curve. Six (1%) of the Fels participants had extremely outlying values for length parameters, and 20 (4%) had outlying values for weight parameters. The general pattern in the outliers is for average or below average size in infancy, followed by unusually rapid growth or weight gain in …
Mathematical modelling of human growth
Kernel regression is a nonparametric procedure that provides good approximations to individual serial data. The method is useful and flexible when a parametric method is inappropriate due to restricted assumptions on the shape of the curve. In the present study, we compared kernel regression in fitting human stature growth with two models, one of which incorporates the possible existence of the midgrowth spurt while the other does not. Two famili…
Development of reference data for increments in variables related to growth
This paper directs attention to the progress made during the last few decades in methods for the development of reference data for increments and in the application of such data. This progress is exemplified by analyses of increments in recumbent length during infancy based on data from the Fels Longitudinal Study that have led to the development of reference data that can be applied easily to individuals and groups. The methods used to develop i…
Prediction of fat‐free mass in black and white pre‐adolescent and adolescent girls from anthropometry and impedance
As an ancillary project of the National Heart Lung and Blood Institute's Growth and Health Study (NGHS), data of 31 black girls and 38 white girls, 10–16 years of age, were used to develop equations to predict fat‐free mass (FFM) from selected anthropometric dimensions and bioelectric impedance measures of resistance and reactance. Subjects were drawn from ongoing projects at the Children's Hospital Medical Center (CHMC) to obtain girls of both r…
Family resemblance for Preece‐Baines growth curve parameters in the fels longitudinal growth study
The Preece‐Baines Model 1 (PB1) nonlinear regression equation was fit to serial stature measurements from 456 participants in the Fels Longitudinal Growth Study. The resulting model parameters and derived biological parameters, such as age, stature, and velocity at take‐off (TO) and peak velocity (PV) are analyzed for family resemblance in 228 nuclear families through estimation of familial correlations and path coefficients. Significant family r…
Improvement in the Roche‐Wainer‐Thissen stature prediction model
The Roche‐Wainer‐Thissen (RWT) prediction model, developed in 1975, predicts the adult stature of a child based on age, current stature, current weight, current skeletal age, and the average stature of the parents. Generally, the method has worked well; however, there are certain steps in the procedure that can be improved. Seven variations of the current version of the RWT prediction model are investigated and compared in terms of the accuracy a…
Reliability for multiple frequency bioelectric impedance
Multifrequency impedance may help to quantify body fluid compartments and levels of hydration among individuals. Most studies of bioelectric impedance use impedance machines operating at a frequency of 50 kHz, and observer error is low. The present study evaluates multifrequency impedance measurements at 15 frequencies from 5 to 1,300 kHz to determine observer reliability in 20 White subjects of each sex, 18–65 years of age. Data were collected d…
Body composition measures from underwater weighing and dual energy X‐ray absorptiometry in black and white girls
The purpose of this study was to compare estimates of body composition in two ethnic groups, 31 black and 38 white girls 10 through 16 years of age, to establish accurate and precise laboratory standards for field measures of body composition in the NHLBI Growth and Health Study HC 55025. The dual energy X-ray absorptiometry (DXA) measures of fat free mass (FFM) and % body fat (%BF) were made using Hologic QDR-1000/W. Corresponding values of FFM …
Head circumference for Mexican American infants and young children from the Hispanic health and nutrition examination survey (HHANES 1982–1984)
This study presents descriptive statistics for head circumference in Mexican American children 6 months to 7 years of age using data from the Hispanic Health and Nutrition Examination Survey (HHANES, 1982–1984) and compares these statistics with national estimates of head circumference for non‐Hispanic White children and non‐Hispanic Black children from the Second National Health and Nutrition Examination Survey (NHANES II, 1976–1980). Head circu…
Relationship of skeletal age to limb composition during pubescence
The relationships between skeletal age (SA) and limb composition (arms, legs, and all four limbs) in terms of fat mass (FM), fat-free mass (FFM), muscle mass (MM) and bone mineral content (BMC) were investigated in 55 males and 53 females aged 9-15 years. The Fels method was used to assess hand-wrist SAs which were expressed as SA/chronological age (SA/CA). The limb composition data were obtained from a Lunar dual-energy x-ray absorptiometer usin…
Relationship of skeletal age to limb composition during pubescence
The relationships between skeletal age (SA) and limb composition (arms, legs, and all four limbs) in terms of fat mass (FM), fat-free mass (FFM), muscle mass (MM) and bone mineral content (BMC) were investigated in 55 males and 53 females aged 9–15 years. The Fels method was used to assess hand-wrist SAs which were expressed as SA/chronological age (SA/CA). The limb composition data were obtained from a Lunar dual-energy x-ray absorptiometer usin…
Body Composition Techniques in Health and Disease
Serial changes in blood pressure from childhood into young adulthood for females in relation to body mass index and maturational age
This study determines: (1) patterns of change from childhood to young adulthood in body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP), (2) effects of elevated BMI values on changes in blood pressures (BP), (3) extent of tracking for SBP, DBP, and BMI, and (4) prediction of future risk for elevated BP from earlier values. Annual serial BP and BMI data were available for 198 white females, ages 8–22 years, enro…
Serial changes in blood pressure from childhood into young adulthood for females in relation to body mass index and maturational age
This study determines: (1) patterns of change from childhood to young adulthood in body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP), (2) effects of elevated BMI values on changes in blood pressures (BP), (3) extent of tracking for SBP, DBP, and BMI, and (4) prediction of future risk for elevated BP from earlier values. Annual serial BP and BMI data were available for 198 white females, ages 8-22 years, enro…
Statistical effects of varying sample sizes on the precision of percentile estimates
The present study evaluates the precision of outlying percentile estimates, with age- and sex-associated variations and facilitates decisions needed to revise the current NCHS 1977 Growth Charts with regard to 1) the inclusion of 3rd and 97th percentiles and 2) the selection of survey data for the construction of the revised growth charts. Simulation was performed to obtain data with distribution characteristics similar to those of The Third Nati…
Statistical effects of varying sample sizes on the precision of percentile estimates
The present study evaluates the precision of outlying percentile estimates, with age- and sex-associated variations and facilitates decisions needed to revise the current NCHS 1977 Growth Charts with regard to 1) the inclusion of 3(rd) and 97(th) percentiles and 2) the selection of survey data for the construction of the revised growth charts. Simulation was performed to obtain data with distribution characteristics similar to those of The Third …
Assessing the body composition of 6-17-year-old black and white girls in field studies
The purpose of the study was to develop ethnic-specific equations for fat-free mass (FFM) from selected anthropometric dimensions and bioelectrical impedance measures of resistance (R) and reactance (Xc) for use in the NHLBI Growth and Heath Study. Using dual-energy X-ray absorptiometry measures of body composition as the dependent variable and field measures of body composition by anthropometry and bioelectrical impedance as the explanatory vari…
Assessing the body composition of 6–17‐year‐old black and white girls in field studies
The purpose of the study was to develop ethnic-specific equations for fat-free mass (FFM) from selected anthropometric dimensions and bioelectrical impedance measures of resistance (R) and reactance (Xc) for use in the NHLBI Growth and Heath Study. Using dual-energy X-ray absorptiometry measures of body composition as the dependent variable and field measures of body composition by anthropometry and bioelectrical impedance as the explanatory vari…
Centers for Disease Control and Prevention 2000 Growth Charts for the United States
Objective. To present a clinical version of the 2000 Centers for Disease Control and Prevention (CDC) growth charts and to compare them with the previous version, the 1977 National Center for Health Statistics (NCHS) growth charts. Methods. The 2000 CDC percentile curves were developed in 2 stages. In the first stage, the empirical percentiles were smoothed by a variety of parametric and nonparametric procedures. To obtain corresponding percentil…
Predicting overweight and obesity in adulthood from body mass index values in childhood and adolescence
Medicine (17 works) · Demography (16 works) · Mathematics (15 works) · Statistics (15 works) · Body mass index (10 works) · Body Composition Measurement Techniques (8 works) · Hum (8 works) · Percentile (7 works) · Anthropometry (6 works) · Birth, Development, and Health (6 works)