Association between parity and macrosomia in Shaanxi Province of Northwest China.


Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China. [Email]


OBJECTIVE : To explore the relationship between parity and macrosomia and provide the necessary reference for the maternal and children health service.
METHODS : A cross-sectional epidemiological survey with the purpose to assess the birth outcomes was conducted in Shaanxi province, China.
RESULTS : The incidence of macrosomia in multiparas was higher than that in primiparas. Univariate analysis showed that maternal age < 25 years, peasant/housework, living in rural areas and female infants were the protective factors of macrosomia. The possibility of having a macrosomic infant also increased with gestational age, maternal education level, household wealth index, living in Central Shaanxi and gestational diabetes. The generalized linear mixed models represented the association between parity and macrosomia. After adjusting for statistically significant factors in univariate analysis from model 1 to model 3, the risk of being born macrosomia was 1.26 times higher for a multipara compared to that for a primipara.
CONCLUSIONS : Present study indicated parity of two children was associated with increased risk for macrosomic births compared with parity of one child. Compared to primiparas, multiparas should far strengthen the pre-pregnancy education and the guidance during pregnancy to control pre-pregnancy body mass index and pregnancy weight, and keep the appropriate exercise and balanced diet.



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