Study on the distribution and related factors of birth weight of live births in Guangxi Zhuang Autonomous Region of China from 2016 to 2018
10.3760/cma.j.issn.0253-9624.2019.12.011
- VernacularTitle: 2016—2018年广西壮族自治区活产儿出生体重的分布特征及相关因素研究
- Author:
Baiqing DONG
1
;
Jianpeng YOU
1
;
Qiuyu LIANG
2
;
Wei LYU
2
;
Jinfeng MA
1
;
Hongwei WEI
3
;
Hai LI
1
Author Information
1. School of Public Health and Management, Guangxi University of Chinese Medicine, Nanning 530200, China
2. Departments of Statistics, Guangxi Health and Family Planning Statistical Information Center, Nanning 530021, China
3. Departments of Obstetrics, Guangxi Maternal and Child Health Hospital, Nanning 530000, China
- Publication Type:Journal Article
- Keywords:
Birth weight;
Infant, newborn;
Epidemiologic study characteristics as topic;
Health status indicators
- From:
Chinese Journal of Preventive Medicine
2019;53(12):1259-1264
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the distribution and related factors of birth weight of live births and full-term infants in Guangxi Zhuang Autonomous Region of China.
Methods:Based on Guangxi women and children information system from 2016 to 2018, a large real-time database about maternal and live-birth information was established. It covered 1 712 midwifery institutions in Guangxi. A total of 2 394 240 cases of live births were collected and 2 243 129 cases of which were full-term infants. The multivariate logistic regression model was used to analyze the related factors of low birth weight.
Results:The birth weight of 2 394 240 live births, (3 123.49±461.08) g, in Guangxi was approximately normal distribution with a peak distribution to the left. The incidence of low birth weight was 8.05%, and the incidence of macrosomia was 2.07%. The incidence of low birth weight was 10.92% for the puerpera with body mass index (BMI, kg/m2) <18.5, 16.82% for the puerpera with height <145 cm, 8.92% for the puerpera with age <20 years old, 7.67% for the puerpera with age ≥35 years old, and 54.65% for the puerpera with premature birth. The birth weight of 2 243 129 full-term infants, (3 176.01±400.78) g, was approximately normal distribution with a peak distribution to the right. The incidence of low birth weight was 2.97%, and the incidence of macrosomia was 2.19%. The incidence of low birth weight was 4.73% for puerpera with BMI<18.5, 8.17% for puerpera with height<145 cm, 4.83% for puerpera with age <20 years old, and 3.05% for puerpera with age ≥35 years old. The risks of low birth weight [OR (95%CI) value] of pregnant women aged <20, 25-29 and 30-34 years old were 1.31 (1.28-1.35), 0.88 (0.86-0.90) and 0.89 (0.87-0.91) times of those aged ≥35 years old. The risks of low birth weight [OR (95%CI) value] of pregnancy BMI <18.5 and 18.5-23.9 kg/m2 group were 1.98 (1.94-2.03) and 1.20 (1.18-1.23) times of those pregnancy BMI ≥24 kg/m2. The risks of low birth weight [OR (95%CI) value] of pregnant women′s height (cm)<145, 145-154, 155-159 and 160-164 cm were 4.67 (4.39-4.97), 2.36 (2.29-2.44), 1.58 (1.53-1.63) and 1.22 (1.18-1.26) times of those heights ≥165 cm group. The risks of low birth weight [OR (95%CI) value] of pregnant women′s gestational age <28, 28-31 and 32-36 years old were 136.65 (124.33-150.20), 1 704.37 (1 509.02-1 925.02) and 33.45 (32.98-33.94) times of those gestational age ≥37 years old.
Conclusion:The incidence of low birth weight of live births was higher in Guangxi from 2016 to 2018. There is a higher risk of low birth weight for younger, older, low height, low BMI and preterm women in Guangxi from 2016 to 2018.
