C M Suchindran
Biographic Data
| ID | 187937 |
|---|---|
| NAME | C M Suchindran |
| GIVEN NAMES | C M |
| FAMILY NAME | Suchindran |
| SIGNATURE | SUCHINDRAN C M |
| AFFILIATIONS | University of North Carolina at Chapel Hill |
| VERIFIED | No |
| TOTAL WORKS | 27 |
| TOTAL CITATIONS | 107 |
| AUTHOR COUNT | 27 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1975 |
| LATEST PUBLICATION YEAR | 2013 |
| H-INDEX | 5 |
Life Table Techniques and Their Applications
The multistate life table method
In many demographic behaviors (e.g., those relating to marriage, contraception, migration, and health), people change among multiple statuses through time, sometimes leaving and then returning to the same status. Data on such behaviors are often collected in surveys as censored event histories. The multistate life table (MSLT) can be used to properly describe, in a single analysis, these complex transitions among multiple states measured in such …
Analysis of contraceptive discontinuation in six developing countries from durations of use at survey
We conduct a cross-national study of contraceptive discontinuation among currently married nonsterilized contracepting women in Bolivia, Egypt, Kenya, Sri Lanka, Thailand, and Zimbabwe using the Demographic and Health Surveys (DHS). Since the DHS contains no true completed epochs of contraceptive use, the distribution of use times at survey is used to approximate the distribution of the completed epochs using the renewal theorem. Two techniques b…
Smoothed breastfeeding durations and waiting time to conception
Breastfeeding beyond the resumption of mother's menstruation plays a significant role in the proximate determinants of fertility. Breastfeeding and postpartum amenorrhoea data collected from retrospective surveys usually exhibit digit preferences. Here, these heaping errors were smoothed by B‐spline and used in multivariate models of risk of conception to investigate the contraceptive effect of breastfeeding. The data used come from a 1987 Indian…
Analysis of birth intervals in India's Uttar Pradesh and Kerala states
Life tables of birth intervals and median birth intervals in two Indian states, Uttar Pradesh and Kerala, were computed for several subgroups of the study population. Multivariate hazards modelling technique was used to examine the net effect of each of the variables studied. The results show a substantial effect of socioeconomic variables in child-spacing after controlling for the major intermediate variables.
Age at last birth and its components
This paper examines the ways in which the behavior of twentieth century cohorts of American women changed simultaneously in the three components of fertility that determine age at last birth—age at first birth, spacing between subsequent births, and parity progression ratios of subsequent births—to produce changes in the timing of the completion of childbearing. It decomposes changes in the mean age at last birth among cohorts and between whites …
Age at return marriage and timing of first birth in India's Uttar Pradesh and Kerala states
The study investigates the relationship between age at marriage and the length of first birth interval in two states of India: Uttar Pradesh and Kerala. Life tables of first-birth intervals and median first-birth intervals are computed for several subgroups of the study population. Multivariate hazards modelling technique is used to study the net effect of age at marriage, controlling for a multiple of socioeconomic factors. The result shows that…
Characteristics of maternal employment during pregnancy
BACKGROUND: Although maternal employment is considered a risk factor for low birthweight (LBW), the manner in which employment might affect birthweight is poorly understood. In this analysis, selected characteristics of employment during pregnancy were examined for effects on pregnancy outcomes. METHODS: Work characteristics included the number of hours per week, physical activities, and environmental conditions. The outcomes of interest were fet…
The Completion of Childbearing
Using data on fertility histories from the 1980 US Current Population Survey which included about 77000 households in a national probability sample the timing of the completion of childbearing (as measured by the age of the mother at her final birth) of successive 20th-Century cohorts of US women (born in 1906-15 1916-25 1926-30 and 1931-35) investigated. Data from the National Survey of Family Growth (NSFG) were also used to examine the likely a…
Factors Affecting Infant and Child Mortality
This paper examines the determinants of infant and child mortality variations in Jordan Yemen Egypt and Tunisia using data from WFS surveys. The analysis considers biological correlates of mortality--mothers age birth order birth interval and previous infant loss--and several social factors--mothers and fathers education mothers residence fathers occupation and mothers work experience since marriage. The estimates for the 4 countries show large v…
Effect of infant mortality on subsequent fertility of women in Jordan
The proportional hazards models of birth intervals based on the data from the 1976 Jordan Fertility Survey indicate that in Jordan the influence of infant death on subsequent fertility is not uniform among all population subgroups. Child survival seems to have only minimal influence on fertility among women at low birth orders and less educated women. The fertility of women with low education is consistently high consequently there is little room…
Factors affecting infant and child mortality
This paper examines the determinants of infant and child mortality variations in four near east countries using data from WFS surveys. The analysis considers biological correlates of mortality—mother's age, birth order, birth interval, and previous infant loss—and several social factors—mother's and father's education, mother's residence, father's occupation, and mother's work experience since marriage. A multivariate analysis using a logistic re…
Childbearing and family in remarriage
Proportional hazards models are used to test hypotheses about the effect of women’s prior childbearing on the probability of having a birth in remarriage and to analyze the effects of other factors. Results indicate that the number of children at the time of remarriage has no effect on childbearing probabilities, but the age of the youngest child has a significant effect. These findings support the view that having a child is important to confirm…
The Effects of Post-marital Childbearing on Divorce and Remarriage
In this paper we examine the effects of having a baby during a period of separation on the probability of divorce, and the impact of bearing a child while divorced on the likelihood of remarriage in the United States. Among whites, neither a first nor a second birth during separation had any significant effect on the probability of divorce. Among blacks, either a first or second birth significantly increased the chance of divorce. The function of…
Effect of infant mortality on subsequent fertility of women in jordan
The proportional hazards models of birth intervals based on the data from the 1976 Jordan Fertility Survey indicate that in Jordan the influence of infant death on subsequent fertility is not uniform among all population subgroups. Child survival seems to have only minimal influence on fertility among less educated women and women at low birth orders. In contrast, the probability of a subsequent birth increases significantly following an infant d…
The construction of multi-state life tables
The basic step in the construction of multi-space life tables is the computation of the probabilities of transition, for a cohort, based on the observed occurrence/exposure rates. It is shown in this article that the formula described by Willekens et al. for this purpose (Population Studies, 1982) can lead to unreasonable results. An alternative formula, based on more realistic assumptions, is presented. An extension of this formula which allows …
The Construction of Multi-State Life Tables
The effects of children on divorce and re-marriage
Using proportional hazards models and multiple decrement life tables to analyse data from the 1973 National Survey of Family Growth, this study tests the hypotheses that, net of the effects of such factors as age at separation or divorce, the probabilities of divorce after separation and of re-marriage after divorce would be lower for women with larger numbers of children or younger children, and that these transitions would take longer than for …
Childlessness and Marital Stability in Remarriages
The study seeks to increase understanding of variation in the patterning of life-course events and in the structure of families in remarriage by examining the outcomes of these new marriages for us women. It analyzes the probabilities and the timing of having a birth in a 2nd marriage or of ending the marriage without having a child among women still childless at remarriage and those who already have 1 or more children. By comparing these 2 group…
A reply to Avery and Hakkert
Udry et al., 1 while analysing the variations in observed birth rates, found that the usual binomial model variance underestimates the actual variance of birth rates. Avery and Hakkert's 2 analysis offers some help in interpreting these results. Also, it clarifies one possible explanation given by Udry et al., regarding the heterogeneous populations. However, we show below that the narrow approach taken by Avery and Hakkert is difficult to apply …
A reply to Avery and Hakkert
Udry et al., 1 J. Richard Udry, Charles Teddlie and C. M. Suchindran, ‘The Random Variation in Rates Based on Total Enumeration of Events’, Population Studies, d33, 2, (1979), pp. 353-364. while analysing the variations in observed birth rates, found that the usual binomial model variance underestimates the actual variance of birth rates. Avery and Hakkert's 2 Avery, R. C. and Hakkert, R., Comment on ‘The Random Variation in Rates Based on Total …
Effects of Children on Women's Remarriage Prospects
LIFE table analyses of data for white women from the 1975 Current Population Survey showed that the effects of the number of children women had at divorce on their remarriage probabilities depended on the women's age at divorce. Among women divorcing before age 25, being childless increased the likelihood of remarriage; but among women divorcing at 35 or older, having no children decreased it. For women divorcing at age 25 to 34, there was no eff…
Increment-decrement tables for human reproduction
This paper illustrates the application of increment—decrement life table methods to the study of family building patterns among women. Here age at the oocurrence of a specified birth is considered the principal duration variable. Data from a sample of currently married women from the 1965 US National Fertility Study were used to illustrate the method.
Estimation of Stochastic Variation in Vital Rates
The computer simulation model REPSIM-B is used to study the random errors in selected cohort natality measures. A brief overview of various analytic approaches for studying such random errors is first presented. Results from analytic models are then compared with those obtained from the computer simulation model. The natality measures studied are age-specific rates total fertility births per person-years lived and cumulative birth rates. Also con…
The random variation in rates based on total enumeration of events
The instability of rates based on total enumeration of events, although not sampling error, may be regarded as having been generated by random processes operating in the population. It is, therefore, necessary to use probability methods to estimate a ‘true’ rate in order to determine whether two rates based on total enumeration of events are different from one another. The binomial model has customarily been used to generate predicted variances, …
Childbearing and family in remarriage
Proportional hazards models are used to test hypotheses about the effect of women’s prior childbearing on the probability of having a birth in remarriage and to analyze the effects of other factors. Results indicate that the number of children at the time of remarriage has no effect on childbearing probabilities, but the age of the youngest child has a significant effect. These findings support the view that having a child is important to confirm…
The effects of children on divorce and re-marriage
Using proportional hazards models and multiple decrement life tables to analyse data from the 1973 National Survey of Family Growth, this study tests the hypotheses that, net of the effects of such factors as age at separation or divorce, the probabilities of divorce after separation and of re-marriage after divorce would be lower for women with larger numbers of children or younger children, and that these transitions would take longer than for …
Effects of Children on Women's Remarriage Prospects
LIFE table analyses of data for white women from the 1975 Current Population Survey showed that the effects of the number of children women had at divorce on their remarriage probabilities depended on the women's age at divorce. Among women divorcing before age 25, being childless increased the likelihood of remarriage; but among women divorcing at 35 or older, having no children decreased it. For women divorcing at age 25 to 34, there was no eff…
The Effects of Post-marital Childbearing on Divorce and Remarriage
In this paper we examine the effects of having a baby during a period of separation on the probability of divorce, and the impact of bearing a child while divorced on the likelihood of remarriage in the United States. Among whites, neither a first nor a second birth during separation had any significant effect on the probability of divorce. Among blacks, either a first or second birth significantly increased the chance of divorce. The function of…
Characteristics of maternal employment during pregnancy
BACKGROUND: Although maternal employment is considered a risk factor for low birthweight (LBW), the manner in which employment might affect birthweight is poorly understood. In this analysis, selected characteristics of employment during pregnancy were examined for effects on pregnancy outcomes. METHODS: Work characteristics included the number of hours per week, physical activities, and environmental conditions. The outcomes of interest were fet…
The multistate life table method
In many demographic behaviors (e.g., those relating to marriage, contraception, migration, and health), people change among multiple statuses through time, sometimes leaving and then returning to the same status. Data on such behaviors are often collected in surveys as censored event histories. The multistate life table (MSLT) can be used to properly describe, in a single analysis, these complex transitions among multiple states measured in such …
The Completion of Childbearing
Using data on fertility histories from the 1980 US Current Population Survey which included about 77000 households in a national probability sample the timing of the completion of childbearing (as measured by the age of the mother at her final birth) of successive 20th-Century cohorts of US women (born in 1906-15 1916-25 1926-30 and 1931-35) investigated. Data from the National Survey of Family Growth (NSFG) were also used to examine the likely a…
Childlessness and Marital Stability in Remarriages
The study seeks to increase understanding of variation in the patterning of life-course events and in the structure of families in remarriage by examining the outcomes of these new marriages for us women. It analyzes the probabilities and the timing of having a birth in a 2nd marriage or of ending the marriage without having a child among women still childless at remarriage and those who already have 1 or more children. By comparing these 2 group…
Estimates of fecundability from a truncated distribution of conception times
A population consisting of women who have conceived before a time t ignores all women whose conception time exceeds t. Such a population is considered as a truncated population, and the samples are called truncated samples. Under the assumption that fecundability among women varies according to a Beta distribution (with parameters a and b), the distribution of conception times in a truncated population can be considered as truncated Type I geomet…
Age at last birth and its components
This paper examines the ways in which the behavior of twentieth century cohorts of American women changed simultaneously in the three components of fertility that determine age at last birth—age at first birth, spacing between subsequent births, and parity progression ratios of subsequent births—to produce changes in the timing of the completion of childbearing. It decomposes changes in the mean age at last birth among cohorts and between whites …
The random variation in rates based on total enumeration of events
The instability of rates based on total enumeration of events, although not sampling error, may be regarded as having been generated by random processes operating in the population. It is, therefore, necessary to use probability methods to estimate a ‘true’ rate in order to determine whether two rates based on total enumeration of events are different from one another. The binomial model has customarily been used to generate predicted variances, …
Estimates of fecundability from a truncated distribution of conception times
A population consisting of women who have conceived before a time t ignores all women whose conception time exceeds t. Such a population is considered as a truncated population, and the samples are called truncated samples. Under the assumption that fecundability among women varies according to a Beta distribution (with parameters a and b), the distribution of conception times in a truncated population can be considered as truncated Type I geomet…
On Comparison of Birth Interval Distributions
Frequently it is of interest to compare the distributions of birth intervals for two or more population subgroups. Such analysis can serve as a useful adjunct to conventional studies of differential fertility. This paper discusses several statistical tests which can be used to test differences in the distributions of the length of birth order specific intervals when these distributions are obtained using life table techniques. Since such estimate…
Increment-decrement tables for human reproduction
This paper illustrates the application of increment—decrement life table methods to the study of family building patterns among women. Here age at the oocurrence of a specified birth is considered the principal duration variable. Data from a sample of currently married women from the 1965 US National Fertility Study were used to illustrate the method.
Estimation of Stochastic Variation in Vital Rates
The computer simulation model REPSIM-B is used to study the random errors in selected cohort natality measures. A brief overview of various analytic approaches for studying such random errors is first presented. Results from analytic models are then compared with those obtained from the computer simulation model. The natality measures studied are age-specific rates total fertility births per person-years lived and cumulative birth rates. Also con…
The random variation in rates based on total enumeration of events
The instability of rates based on total enumeration of events, although not sampling error, may be regarded as having been generated by random processes operating in the population. It is, therefore, necessary to use probability methods to estimate a ‘true’ rate in order to determine whether two rates based on total enumeration of events are different from one another. The binomial model has customarily been used to generate predicted variances, …
Effects of Children on Women's Remarriage Prospects
LIFE table analyses of data for white women from the 1975 Current Population Survey showed that the effects of the number of children women had at divorce on their remarriage probabilities depended on the women's age at divorce. Among women divorcing before age 25, being childless increased the likelihood of remarriage; but among women divorcing at 35 or older, having no children decreased it. For women divorcing at age 25 to 34, there was no eff…
A reply to Avery and Hakkert
Udry et al., 1 while analysing the variations in observed birth rates, found that the usual binomial model variance underestimates the actual variance of birth rates. Avery and Hakkert's 2 analysis offers some help in interpreting these results. Also, it clarifies one possible explanation given by Udry et al., regarding the heterogeneous populations. However, we show below that the narrow approach taken by Avery and Hakkert is difficult to apply …
A reply to Avery and Hakkert
Udry et al., 1 J. Richard Udry, Charles Teddlie and C. M. Suchindran, ‘The Random Variation in Rates Based on Total Enumeration of Events’, Population Studies, d33, 2, (1979), pp. 353-364. while analysing the variations in observed birth rates, found that the usual binomial model variance underestimates the actual variance of birth rates. Avery and Hakkert's 2 Avery, R. C. and Hakkert, R., Comment on ‘The Random Variation in Rates Based on Total …
Effect of infant mortality on subsequent fertility of women in jordan
The proportional hazards models of birth intervals based on the data from the 1976 Jordan Fertility Survey indicate that in Jordan the influence of infant death on subsequent fertility is not uniform among all population subgroups. Child survival seems to have only minimal influence on fertility among less educated women and women at low birth orders. In contrast, the probability of a subsequent birth increases significantly following an infant d…
The construction of multi-state life tables
The basic step in the construction of multi-space life tables is the computation of the probabilities of transition, for a cohort, based on the observed occurrence/exposure rates. It is shown in this article that the formula described by Willekens et al. for this purpose (Population Studies, 1982) can lead to unreasonable results. An alternative formula, based on more realistic assumptions, is presented. An extension of this formula which allows …
The Construction of Multi-State Life Tables
The effects of children on divorce and re-marriage
Using proportional hazards models and multiple decrement life tables to analyse data from the 1973 National Survey of Family Growth, this study tests the hypotheses that, net of the effects of such factors as age at separation or divorce, the probabilities of divorce after separation and of re-marriage after divorce would be lower for women with larger numbers of children or younger children, and that these transitions would take longer than for …
Childlessness and Marital Stability in Remarriages
The study seeks to increase understanding of variation in the patterning of life-course events and in the structure of families in remarriage by examining the outcomes of these new marriages for us women. It analyzes the probabilities and the timing of having a birth in a 2nd marriage or of ending the marriage without having a child among women still childless at remarriage and those who already have 1 or more children. By comparing these 2 group…
Factors affecting infant and child mortality
This paper examines the determinants of infant and child mortality variations in four near east countries using data from WFS surveys. The analysis considers biological correlates of mortality—mother's age, birth order, birth interval, and previous infant loss—and several social factors—mother's and father's education, mother's residence, father's occupation, and mother's work experience since marriage. A multivariate analysis using a logistic re…
Childbearing and family in remarriage
Proportional hazards models are used to test hypotheses about the effect of women’s prior childbearing on the probability of having a birth in remarriage and to analyze the effects of other factors. Results indicate that the number of children at the time of remarriage has no effect on childbearing probabilities, but the age of the youngest child has a significant effect. These findings support the view that having a child is important to confirm…
The Effects of Post-marital Childbearing on Divorce and Remarriage
In this paper we examine the effects of having a baby during a period of separation on the probability of divorce, and the impact of bearing a child while divorced on the likelihood of remarriage in the United States. Among whites, neither a first nor a second birth during separation had any significant effect on the probability of divorce. Among blacks, either a first or second birth significantly increased the chance of divorce. The function of…
Factors Affecting Infant and Child Mortality
This paper examines the determinants of infant and child mortality variations in Jordan Yemen Egypt and Tunisia using data from WFS surveys. The analysis considers biological correlates of mortality--mothers age birth order birth interval and previous infant loss--and several social factors--mothers and fathers education mothers residence fathers occupation and mothers work experience since marriage. The estimates for the 4 countries show large v…
Effect of infant mortality on subsequent fertility of women in Jordan
The proportional hazards models of birth intervals based on the data from the 1976 Jordan Fertility Survey indicate that in Jordan the influence of infant death on subsequent fertility is not uniform among all population subgroups. Child survival seems to have only minimal influence on fertility among women at low birth orders and less educated women. The fertility of women with low education is consistently high consequently there is little room…
The Completion of Childbearing
Using data on fertility histories from the 1980 US Current Population Survey which included about 77000 households in a national probability sample the timing of the completion of childbearing (as measured by the age of the mother at her final birth) of successive 20th-Century cohorts of US women (born in 1906-15 1916-25 1926-30 and 1931-35) investigated. Data from the National Survey of Family Growth (NSFG) were also used to examine the likely a…
Characteristics of maternal employment during pregnancy
BACKGROUND: Although maternal employment is considered a risk factor for low birthweight (LBW), the manner in which employment might affect birthweight is poorly understood. In this analysis, selected characteristics of employment during pregnancy were examined for effects on pregnancy outcomes. METHODS: Work characteristics included the number of hours per week, physical activities, and environmental conditions. The outcomes of interest were fet…
Age at last birth and its components
This paper examines the ways in which the behavior of twentieth century cohorts of American women changed simultaneously in the three components of fertility that determine age at last birth—age at first birth, spacing between subsequent births, and parity progression ratios of subsequent births—to produce changes in the timing of the completion of childbearing. It decomposes changes in the mean age at last birth among cohorts and between whites …
Age at return marriage and timing of first birth in India's Uttar Pradesh and Kerala states
The study investigates the relationship between age at marriage and the length of first birth interval in two states of India: Uttar Pradesh and Kerala. Life tables of first-birth intervals and median first-birth intervals are computed for several subgroups of the study population. Multivariate hazards modelling technique is used to study the net effect of age at marriage, controlling for a multiple of socioeconomic factors. The result shows that…
Analysis of birth intervals in India's Uttar Pradesh and Kerala states
Life tables of birth intervals and median birth intervals in two Indian states, Uttar Pradesh and Kerala, were computed for several subgroups of the study population. Multivariate hazards modelling technique was used to examine the net effect of each of the variables studied. The results show a substantial effect of socioeconomic variables in child-spacing after controlling for the major intermediate variables.
Smoothed breastfeeding durations and waiting time to conception
Breastfeeding beyond the resumption of mother's menstruation plays a significant role in the proximate determinants of fertility. Breastfeeding and postpartum amenorrhoea data collected from retrospective surveys usually exhibit digit preferences. Here, these heaping errors were smoothed by B‐spline and used in multivariate models of risk of conception to investigate the contraceptive effect of breastfeeding. The data used come from a 1987 Indian…
Analysis of contraceptive discontinuation in six developing countries from durations of use at survey
We conduct a cross-national study of contraceptive discontinuation among currently married nonsterilized contracepting women in Bolivia, Egypt, Kenya, Sri Lanka, Thailand, and Zimbabwe using the Demographic and Health Surveys (DHS). Since the DHS contains no true completed epochs of contraceptive use, the distribution of use times at survey is used to approximate the distribution of the completed epochs using the renewal theorem. Two techniques b…
Demography (24 works) · Population (21 works) · Sociology (14 works) · Demographic Trends and Gender Preferences (13 works) · Demography (13 works) · Medicine (13 works) · Family Dynamics and Relationships (12 works) · Fertility (11 works) · Mathematics (10 works) · Statistics (10 works)