Thick women are prone to premature birth

(Women who have a period of separation between short pregnancies of less than 18 months are more likely to be born prematurely, a new study finds published in BJOG: A Journal International Journal of Obstetrics and Gynecology (BJOG- International Journal of Obstetrics and Gynaecology).

The US study used birth records from the Ohio State Department of Health, reviewing 454,716 births of pregnant women twice or more than twice a pregnancy within 6 years. The researchers looked at the effect of the interval between births on subsequent pregnancies.

This study identified a short interval of fertility (the interpregnancy interval IPI) as the time taken from the birth of the previous child to the next pregnancy. The researchers classified women with short IPI into two groups, short IPI interval of less than 12 months and IPI from 12 to 18 months, compared with women considered to have a gap between childbirth and optimal follow-up pregnancy is 18 months or more.

The results showed that mothers with shorter IPI were at risk of preterm birth when the fetus was less than 39 weeks old than women with optimal birth spacing. Accordingly, an IPI shorter than 12 months, 53.3% of women gave birth before 39 weeks of age, compared to 37.5% of women who had optimal time to relax. Childbirth after delivery (more than 40 weeks of age) occurs less in women with short IPI less than 12 months, this rate is 16.9% compared to 23.1% in a woman with a normal IPI.

Furthermore, the 37-week preterm birth rate was higher in women with IPI shorter than 12 months. These women seem to give birth twice before 37 weeks more than women with a standard IPI (20.1% versus 7.7%).

The study also considered racial groups. Data show that black mothers often have shorter IPS than non-black mothers (IPI is less than 12 months, the rate is 3.3% compared to 1.9% and 12 - 18 month is 13.2% compared with 10.1%.

Moreover, the rate of preterm birth in black mothers with short IPI less than 12 months is also higher, 26.4% compared with the rate of 8.7% in non-black mothers.

While women who conceived after the previous birth of 18 months or more had a low rate of preterm birth, this rate in black women was still higher than the rate of general premature birth (11.3%) compared with those of previous births. women are not black (6.8%), which indicates that maternal race is also an important factor in preterm birth regardless of whether optimal spacing is guaranteed.

The authors conclude that the interval between two pregnancies is short, leading to a reduction in subsequent pregnancies, and women need to be counseled and warned about the importance of the optimal fertility distance, Especially for the problem of reducing premature birth rates.

Emily DeFranco, Associate Professor of Obstetrics and Medicine - Fetal University of Cincinnati College of Medicine in Ohio and the Center for Preterm Birth at the Cincinnati Children's Hospital Medical Center, and co-author of the study, said. : 'The short period of pregnancy expulsion is a known risk factor for preterm birth, however, this new study shows a widening interval between two insecure births related to total pregnancy time. can be reduced '.

This study has a potential impact on reducing the overall rate of preterm birth globally through counseling women to understand the importance of appropriate fertility distances , especially on women. Women are known to be at high risk of preterm birth.

John Thorp, deputy editor of BJOG magazine said: 'We know that insufficient fertility gap is associated with pregnancy risks , including premature birth, in many countries as well as in America. This large population-based study reinforces and emphasizes the importance of optimal spacing , 18 months or longer, especially in women with additional risk of preterm birth. '