Reductions in birth-spacing can have detrimental effects on the mother, on her children and on population growth. Unfortunately, a lack of accurate birth date data in Papua New Guinea makes it difficult to obtain precise information on birth-spacing and its change. This paper reports an attempt to use data derived from Department of Health Baby Books to gauge birth-spacing and its changes over the period 1970-1987 among the Yangoru Boiken of the East Sepik Province. Although Yangoru Boiken society has changed considerably since World War II, the results reveal no significant change in birth spacing over this period.
Female ; Humans ; Medical Records ; Papua New Guinea ; Birth Intervals ; Child, Preschool ;

PURPOSE: To compare the incidence of twin births with the length of first birth interval (LFBI: from marriage to first birth) among primiparous women. METHODS: The birth certificated data of Korea Statistics from 2010 to 2015 were used for this analysis. There were 1,356,204 births of primiparous women from total birth cases (2,736,296 births). The data involving multiparous women, teenage birth, extra-marital birth, and triplet birth cases were excluded from all analyses. Odds ratio and 95 percent confidence intervals were calculated from logistic regression to examine the risk of twin birth by LFBI adjusted for year of birth, maternal age, paternal age, age difference between couples, and maternal education and occupation. RESULTS: The frequency of LFBI was 41.5 percent in ≤12 months, 30.7 percent in 13~24 months, 13.1 percent in 25~36 months, and 2.1 percent in LFBI of ≥85 months. The mean LFBI was 21.5 months. The incidence of twin birth increased with prolonged LFBI. The twin birth rates per LFBI were 0.8 percent, 3.1 percent, 7.9 percent, and 11.0 percent in LFBI of ≤12 months, 25~36 months, 49~60 months, and 73~84 months, respectively. Odds ratio of twin births rate by LFBI were 1.510 (95% confidence interval: 1.449~1.574) for the LFBI of 13~24 months, 9.839 (9.390~10.309) for 49~60 months, and 13.244 (12.458~14.080) for ≥73~84 months, each compared with LFBI of ≤12 months. Odds ratio of twin birth rate in LFBI of ≤72 months was higher in women aged 35 and older, as compared to women aged ≤34 years. Odds ratio of twin birth rate by maternal age (≤34 years versus ≥35 years) reversed in LFBI of ≥73 months. CONCLUSION: The risk of twin birth increased significantly with prolonged LFBI. There is a need to understand the factors (fertility therapy and etc.) to increased risk of twin birth in prolonged LFBI.
Birth Intervals* ; Birth Order* ; Birth Rate ; Education ; Family Characteristics ; Female ; Humans ; Incidence* ; Korea* ; Logistic Models ; Marriage ; Maternal Age ; Occupations ; Odds Ratio ; Parturition* ; Paternal Age ; Triplets ; Twins*

Objective: To understand the effect of interpregnancy interval (IPI) of childbearing aged women on the birth weight of single live birth neonates in Shaanxi province. Methods: A questionnaire survey was conducted among the childbearing aged women selected through multistage stratified random sampling in Shaanxi during 20l0-2013, all the childbearing aged women had definite pregnancy outcomes. The interpregnancy interval of the childbearing aged women and the birth weight of the newborns were used as the independent variables and dependent variables respectively in multiple linear regression model and quantile regression model, and confounding factors were controlled. Results: A total of 13 063 women at childbearing age and their infants were investigated. The incidence of low birth weight and macrosomia was 3.54% and 7.62% respectively. Multiple linear regression analysis showed that there was no significant difference in birth weight among different IPI group and control group. Quantile regression analysis showed when birth weight was at 5 percentiles, the difference in birth weight between newborns whose mothers had short interpregnancy interval (<12 months) and those in control group was significant, when the birth weight was ≥90 percentiles, the birth weights of newborns whose mothers had long interpregnancy interval (60-119 months) were higher than those in control group, the difference was significant. As the increase of the percentiles of birth weight, the extent of changes gradually increased. Conclusion: The analysis indicated that both short (<12 months) and long (60-119 months) interpregnancy interval would had negative effects on birth weights of newborns. Therefore, planning for pregnancy is important for having a good perinatal outcome.
Birth Intervals ; Birth Weight ; Female ; Fetal Macrosomia/epidemiology* ; Humans ; Incidence ; Infant, Low Birth Weight ; Infant, Newborn ; Live Birth ; Macrolides ; Male ; Maternal Age ; Mothers ; Pregnancy ; Pregnancy Outcome ; Risk Factors ; Surveys and Questionnaires

To measure the fertility rate and pregnancy wastage of women in rural area, 3,780 married women under 50 years old who were not sterilized either woman or husband in Gunwee county were followed up for 2 years. Seventeen Myun health workers visited these women periodically to check the status of their family planning practice and menstruation. Pregnant women were interviewed for their past obstetric history and followed up to the time of delivery. Family planning was practiced in 51.6% of the 6,826 women-years observed during the period from April 1, 1985 to March 31, 1987. Pregnancy, abortion and delivery covered 7.6% of the observed women years and family planning was not practiced in 36.5% of the women-years. When sterilized women at the beginning of the study were included, the family planning practice rate was 72.1% which was slightly higher than the national family planning practice rate. However, 28% of the women of 30-39 years old had not practiced family planning although they had 2-3 children and they used more such less effective methods as safe-period method and condom than the women of 20-29 years old. Overall pregnancy rate was 14.3 per 100 woman-years. Women of 25-29 years old had the highest pregnancy rate of 27.4 per 100 woman-years. Pregnancy wastage including spontaneous and induced abortions and still births was 22.0% of all pregnancies and it increased with the age of women; 15.8% in women less than 30 years old and 43.7% in women of 30 years and over. Women who terminated the pregnancy with induced abortion had more pregnancies, more previous induced and spontaneous abortions and shorter pregnancy interval than those women who terminated with live birth. Pregnant women terminated with a live birth had received 4.2 prenatal cares on the average. Eighty-five percent of deliveries occurred at a medical facility and 15% at home which was substantially lower home delivery rate than the other rural area of Korea. This may be due to the effects of the demonstration project for the primary health care in 1970s in Gunwee county. These findings suggest that family planning service in rural area should be strengthened by promoting the use of more effective contraceptive method among women over 30 years of age.
Abortion, Induced ; Abortion, Spontaneous ; Adult ; Birth Intervals ; Birth Rate ; Child ; Condoms ; Contraception ; Family Planning Services ; Female ; Fertility* ; Follow-Up Studies* ; Humans ; Korea ; Live Birth ; Menstruation ; Middle Aged ; Parturition ; Pregnancy Rate ; Pregnancy* ; Pregnant Women ; Primary Health Care ; Spouses

The effect of interpregnancy interval on birthweight of the subsequent child was investigated for the 1,347 women of 25 to 40yearsold age who visited OBGY and Pediatric department of the general hospital in Taegu city. Questions in designed questionnaire were asked by student interviewers who were trained in nursing school. Mean birth weight by interpregnancy intervals were compared by intervals of 6 months. Mean birth weight increased from 3,250 grams for intervals of 6 months to 3,357 grams for intervals of 25-30 months, but the difference was not statistically significant (=0.47). Correlations between the continuous variables which were suspected as confounders and interpregnancy interval and birth weight were investigated. The coefficient of correlation between maternal age and interpregnancy interval was 0.39, between gestational period and birth weight 0.30 and between prepregnancy weight and birth weight 0.16 and between birth weight of first baby and birth weight (of second baby) 0.44. But maternal age, gestational period and prepregnancy weight were not considered as confounder, because they were not correlated simultaneously with birth interval and birth weight. Associations between the discrete variables which were suspected as confounders, and interpregnancy interval were investigated by Chi-square test. Associations between interpregancy interval and educational level of mothers, types of husband's occupation, types of medical security, sex were not significant (P-values were 0.59, 0.75, 0.75, 0.82 respectively), so we did not considered these variables as confounding variables. In multiple regression analysis of birth weight, significant variables were birth weight of first baby, gestational analysis of birth weight, significant variables were birth weight of first bay, gestational period, sex of neonate and prepregnancy body weight of mother. Of the 1,347 births, the rate of low birth weight was 2% (27 birth). The rate for interpregnancy interval 7-12months was highest as 3.6% and that for 13-18 months was lowest as 0.6%, but there was no regular tendency related with interpregnancy interval.
Bays ; Birth Intervals ; Birth Weight* ; Body Weight ; Child ; Confounding Factors (Epidemiology) ; Daegu ; Female ; Hospitals, General ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Maternal Age ; Mothers ; Occupations ; Parturition* ; Schools, Nursing

BACKGROUND: With an increasing proportion of multiparas, proper interpregnancy intervals (IPIs) are urgently needed. However, the association between IPIs and adverse perinatal outcomes has always been debated. This study aimed to explore the association between IPIs and adverse outcomes in different fertility policy periods and for different previous gestational ages. METHODS: We used individual data from China's National Maternal Near Miss Surveillance System between 2014 and 2019. Multivariable Poisson models with restricted cubic splines were used. Each adverse outcome was analyzed separately in the overall model and stratified models. The stratified models included different categories of fertility policy periods (2014-2015, 2016-2017, and 2018-2019) and infant gestational age in previous pregnancy (<28 weeks, 28-36 weeks, and ≥37 weeks). RESULTS: There were 781,731 pregnancies enrolled in this study. A short IPI (≤6 months) was associated with an increased risk of preterm birth (OR [95% CI]: 1.63 [1.55, 1.71] for vaginal delivery [VD] and 1.10 [1.03, 1.19] for cesarean section [CS]), low Apgar scores and small for gestational age (SGA), and a decreased risk of diabetes mellitus in pregnancy, preeclampsia or eclampsia, and gestational hypertension. A long IPI (≥60 months) was associated with an increased risk of preterm birth (OR [95% CI]: 1.18 [1.11, 1.26] for VD and 1.39 [1.32, 1.47] for CS), placenta previa, postpartum hemorrhage, diabetes mellitus in pregnancy, preeclampsia or eclampsia, and gestational hypertension. Fertility policy changes had little effect on the association of IPIs and adverse maternal and neonatal outcomes. The estimated risk of preterm birth, low Apgar scores, SGA, diabetes mellitus in pregnancy, and gestational hypertension was more profound among women with previous term births than among those with preterm births or pregnancy loss. CONCLUSION For pregnant women with shorter or longer IPIs, more targeted health care measures during pregnancy should be formulated according to infant gestational age in previous pregnancy.
Infant ; Pregnancy ; Humans ; Female ; Infant, Newborn ; Pregnancy Outcome/epidemiology* ; Premature Birth/epidemiology* ; Gestational Age ; Pre-Eclampsia ; Hypertension, Pregnancy-Induced ; Eclampsia ; Cesarean Section/adverse effects* ; Birth Intervals ; Risk Factors ; Diabetes Mellitus

This study was undertaken to observe relationships between patterns of feeding, supplementary-feeding and various maternal, family, and socioeconomic charactereistics in Hae Cheog Apartment area in Cheongdam-dong, Kangnamku, Seoul on July 2 to 12 in 1982. The results were based on a questionnaire from 179 mothers who have the last-born child under two vears old. Results were as follows: 1) In socio-demographic characteristics, most of mothers were 25 to 30 years old and 52.0% of index children were under 6 months old. About 56. 0,00 of families were the salaries and 47. 0% of them earn over 500,000 won a month. 40. 8% of mothers were college graduates and 81.60 of mothers had no occupation. 2) 89.4% of mothers received prenatal care in pregnancy of the index children and mothers.-who have delivered the child in medical institute were 88.3%. Mothers who recieved education of breast care and feeding technique through prenatal care were 22.4%, 31.8,,o respectively. 3) In the feeding method, 44. 1% of mothers took the breast feeding, ~4. 0% of them chose the artificial feeding, and 20. 756 of them chose the mixed feeding. Mothers who changed the method from breast feeding to artificial feeding were 10.6% and only 0.60 of mothers: changed from artificial feeding to breast feeding. 4) According to the questionnaire, 37 mothers have already finished lactation (no relation with the beginning of weaning food). In breast feeding, one mother has lactated for 46 months,. one has lactated for 7-9 months, four have lactated for 1012 months, and seven have continued the lactation over 12 months. In artificial and mixed feeding, as the same phenomenon, most of mothers have lactated for more than 12 months. 5) The reasons for feeding method were as follows: in breast feeding,, 64. 6% of them took the-method because they thought the breast milk nutrious, in artificial feeding, 34.90 of them chose it because they had occupation and in the mixed feeding, 6716% of mothers took the method because of lack of their breast milk. In the case of changing! the method from breast feeding to artificial feeding, 42.1% of them answered that they ~d to change the method because of lack of breast milk. 6) In most of cases; the 4th month was the proper period to begin t4 weaning food and 32.5 of breast feeding children and 27.6% of artificial feeding children ;began the weaning food in 4th month. After 4th month; there was no difference between breast feeding and artificial feeding in the beginning of weaning food. 7) In the matter of menstruation, 29.8% of mothers who had breast feeding started their menstruations in 3 months and the rest of them delayed until 12 months. 40% of mothers who had artificial feeding began to menstruate after 2 months and all the rest started within 5 months. 8) The birth interval between the index child and next new child (would-be-born): In breast feeding, the interval of 1824 months had a majority as 50.0,x, and in the artificial feeding, the interval of over 24 months marked 66.7% of them. It was analyzed hat the birth interval of artificial feeding was wider than that of breast feeding. 9) In the desirable number of children, the mothers who had breast feeding wanted two sons and two daughters as proper children. Those who want two children in disregard of the sex (son or daughter) were 89.3% of breast feeding, and 80.00 of artificial feeding respectively. Mothers who had breast feeding wanted two children rather than onechild. 10) In the family planning practice, the rate of practice were 41.9%in breast feeding, and 58.1% in artificial feeding respectively. In the case of breast feeding, the using rate of family planning practice in men was higher than in women.
Adult ; Birth Intervals ; Breast ; Breast Feeding ; Child ; Education ; Family Planning Services ; Feeding Methods ; Female ; Humans ; Infant ; Lactation ; Male ; Menstruation ; Milk, Human ; Mothers ; Nuclear Family ; Nutritional Support ; Occupations ; Pregnancy ; Prenatal Care ; Surveys and Questionnaires ; Salaries and Fringe Benefits ; Seoul ; Weaning

Traditionally, programs related to maternal health are regarded as purely a woman's domain. Nevertheless, the role of the male as the decision maker in the household gave way to the recognition of the male's role in maternal and reproductive health. This paper aimed to provide a review on male involvement strategies and their impact on maternal health based on related studies, discuss the strategies in the Philippine context and suggest interventions given the current state of the Philippine health care system. These strategies utilize the decision-making role of the male by positing itself on the reproductive, sexual and maternal health aspects encompassing important factors, such as birth spacing, first pregnancy, family planning, utilization of skilled birth attendants (SBAs), and delivery in health facilities, antenatal and postpartum care and nutrition. However, negative repercussions include stigmatization of single mothers and reinforcement of the notion of a man's control over a woman's body. Given the current state of the Philippine health care system, the suggested interventions try to veer away from it as much as possible. These include integration of the male involvement strategy into the Pantawid Pamilyang Pilipino Program (4Ps), coursing it through a public-private partnership (PPP) and non-government organizations (NGOs), involvement of educational institutions, strengthening of the health service delivery at the grassroots level, reinforcement of existing laws, and research on its institutionalization. With carefully-planned strategies that recognize existing gender norms and other sociocultural factors, male involvement in maternal health could be a possible catalyst in decreasing the Philippine maternal mortality rate (MMR).

 

Human ; Male ; Female ; Pregnancy ; Maternal Mortality ; Reproductive Health ; Birth Intervals ; Family Planning Services ; Public-private Sector Partnerships ; Stereotyping ; Maternal Health ; Mothers ; Postnatal Care ; Parturition ; Family Characteristics ; Gender Identity ; Delivery, Obstetric ; Decision Making ; Institutionalization ; Health Facilities

OBJECTIVETo explore the risk factors for hepatoblastoma.

METHODSA case-cohort study using Logistic regression multiple variables analysis of medical record data sets was conducted to examine infant and perinatal risk factors for hepatoblastoma.

RESULTSBirth weight less than 1,000 g was associated with a strongly increased risk of hepatoblastoma (odds risk, OR = 26.0, 95% confidence interval, CI: 14.0 to 65.7). After adjustment of birth weight, a moderately increased risk of hepatoblastoma was found for older maternal age ( > 35 years vs. 20 to 34 years: OR = 2.6, 95% CI: 0.9 to 5.9), maternal smoking (OR = 2.9, 95% CI: 1.1 to 4.2) and higher maternal pregnancy body mass index (OR = 3.2, 95% CI: 1.0 to 6.7).

CONCLUSIONVery low birth weight and maternal characteristics including overweight, smoking are associated with hepatoblastoma risk.

Case-Control Studies ; Child ; Child, Preschool ; Confidence Intervals ; Female ; Follow-Up Studies ; Hepatoblastoma ; epidemiology ; etiology ; prevention & control ; Humans ; Infant ; Infant, Newborn ; Infant, Very Low Birth Weight ; Liver Neoplasms ; epidemiology ; etiology ; prevention & control ; Male ; Overweight ; Pregnancy ; Retrospective Studies ; Risk Factors ; Smoking ; adverse effects