Association between maternal body height and risk of preterm birth.
10.3760/cma.j.issn.0254-6450.2018.03.012
- Author:
H LI
1
;
L L SONG
1
;
L J SHEN
1
;
B Q LIU
1
;
X X ZHENG
1
;
L N ZHANG
1
;
Y Y LI
2
;
W XIA
2
;
B ZHANG
3
;
A F ZHOU
3
;
Y J WANG
1
;
S Q XU
2
Author Information
1. Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
2. Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
3. Woman and Children Medical and Healthcare Center of Wuhan, Wuhan 430030, China.
- Publication Type:Journal Article
- Keywords:
Body height;
Preterm birth;
Risk factor
- MeSH:
Body Height;
China/epidemiology*;
Cohort Studies;
Female;
Gestational Age;
Humans;
Incidence;
Infant, Newborn;
Odds Ratio;
Pregnancy;
Premature Birth/epidemiology*;
Prenatal Care;
Risk Factors
- From:
Chinese Journal of Epidemiology
2018;39(3):313-316
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the association between maternal body height and risk of preterm birth. Methods: A total of 11 311 pregnant women who gave birth of live singletons were recruited from the Healthy Baby Cohort Study in Hubei province, China from September 2012 to October 2014. Finally 11 070 pregnant women were selected as study subjects. Data were collected by using questionnaires, their prenatal care records and medical records. The women were divided into 4 groups according to the quartiles distribution (<158 cm, 158- cm, 160- cm, and >164 cm). Gestational age was estimated according to maternal last menstrual time. Preterm birth was defined as delivering a live singleton infant at 28-37 weeks' gestational age. Logistic regression was used to calculate the odds ratios (OR) and 95% confidence intervals (CI) for the association between body height and preterm birth. Results: Among the 11 070 pregnant women, the incidence of preterm birth was 5.9%. Logistic regression analysis indicated that women in group with body height <158 cm had 46% (OR=1.46, 95%CI: 1.16-1.83) higher risk of giving preterm birth than those in group with body height >164 cm after adjustment for potential confounders. Every 1- cm increase in body height was associated with 3% lower risk of preterm birth (OR=0.97, 95%CI: 0.95-0.99). Conclusion: Shorter body height was a risk factor for preterm birth. It is necessary to strengthen the monitoring in pregnant women with short body height to reduce the risk of preterm birth.
