جستجوی مقالات مرتبط با کلیدواژه « First Birth Interval » در نشریات گروه « پزشکی »

The first-birth interval after a marriage indicates the reproduction behavior of women and influences the population's birth rates and size. The present study assesses predictors of the interval between marriage and first childbirth in India.

The study employed the Cox proportional hazard model and Kaplan Meier Survival plot based on the data collected from 79,787 ever-married women in the 15-49 age group from the National Family Health Survey 2019-2021.

The median age of marriage to the first birth interval was 23 months in India. The older marriage cohort had longer birth intervals than the younger. The hazard ratios (HR) showed that the risk of first birth after marriage was much higher among women with higher education (HR= 2.05, 95% confidence interval (CI) = 1.98-2.11) than women without education. Women in urban areas (HR=1.22, 95% CI = 1.20-1.25) had a higher risk of first birth after marriage earlier than women from rural areas. Women from North-east (HR=1.14, 95%CI=1.10-1.18) and South (HR=1.15, 95%CI=1.12-1.19) had a higher risk of having their first birth earlier after marriage than women in the North region. The women who married within 18-24 years of age had a 69 percent higher likelihood of first birth interval than those women who were married below the age of 18. The risk of first birth after marriage increased as women delayed marriage up to age 25 years and more (HR=3.18, 95% CI=3.02-3.35) than others.

The timing of first birth was associated with the age at the first marital union, women's educational attainment, place of residence, region, economic status, exposure to mass media, contraception use, and history of pregnancy termination.

A short pregnancy interval (long fertility acceleration (Tempo)) is associated with adverse health and perinatal outcomes, including maternal, child, and neonatal mortality.

We aimed to investigate the duration and determining factors of first birth intervals among women of reproductive age in Semnan, Iran.

In this cross-sectional study, the fertility history of 600 married women aged 15 to 49 in Semnan (Iran) was investigated from the list of health centers. Individuals were selected using a multistage sampling method in 2018. Finally, a married woman (15 - 49 years) was selected randomly from each household. Data were obtained by interview questionnaire, calculated tempos, and analyzed with a Cox proportional hazard model.

The median (first – third quartile) time of first birth intervals and age of women and men at the first marriage were estimated to be 24.0 (12 - 44) months, 20 (18 - 23), and 25 (22 - 28) years, respectively. The lowest estimated tempo was for third births (68.63 months), and the highest was for the 1st (26 months). Among explanatory variables of interest, the number of children expected, the father’s age at the first marriage, the mother’s occupation, and the desire to have children were significant predictors of the first birth intervals.

Due to the decrease in the number of births in the past several years and also the prediction of a decrease in the coming years, one of the ways to reduce the birth interval and, as a result, increase the fertility rate is to reduce the age of marriage among young people and in general to marry on time among young people, as well as to control inflation and reduce the cost of having children.