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Abstract To analyze the status of pregestational malnutrition, and overweight or obesity of pregnant women in Shanghai. Methods: Based on the health data of the first prenatal examination of 482899 pregnant women from Shanghai Maternal Health Care System between 2013 and 2015, variance analysis and chi-square test were used to analyze the prevalence and variation trends of pregestational malnutrition, and overweight or obesity of pregnant women. Results: The overall progestational malnutrition rate of pregnant women was 12.9% in Shanghai from 2013 to 2015, which had a decreasing trend year by year, especially that (16.3%) of women aged 19-25 was the highest. The overall overweight rate and obesity rate before pregnancy were 9.8% and 2.5%, respectively, with increasing trends of both overall overweight rate and obesity rate year by year. There were statistically significant differences in pregestational nutritional status among women of different ages, household registration, educational background, occupation, gravidity and parity history. Conclusion: It is important to pay more attention to the significant nutritional deficiency of women under 25 years old, and the overweight or obesity of elderly and second-born mothers in Shanghai.
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