Abstract：Objective To investigate the motivation for weight self-management and analyze its influencing factors among pregnant women in a tertiary hospital in Hohhot City, Inner Mongolia Autonomous Region, so as to provide insights into body weight management during pregnancy. Methods Pregnant women at ages of 18 years and older that underwent prenatal examinations in a tertiary hospital in Hohhot City from January to March, 2022 were sampled using a convenience sampling method. Subjects' age, height, weight, occupation, residence, monthly household income, history of gestation and childbirth and gestational period were collected, and the motivation for weight self-management was evaluated among pregnant women using a pregnancy weight management protein motivation scale. The factors affecting the motivation for weight self-management were identified among pregnant women using a multivariable linear regression model. Results Totally 969 pregnant women were recruited, including 841 women at ages of <35 years (86.79%), 780 women with an educational level of diploma and above (80.50%), 794 women living in urban areas (81.94%), 729 primiparas (75.23%), 421 women in the third trimester of gestation (43.45%) and 758 women with pre-pregnancy body mass index (BMI) of <25 kg/m2 (78.22%). The mean score of motivation for weight self-management was 127.53±14.60 among the pregnant women. Multivariable linear regression analysis showed that an educational level of high school and below (β′=-0.201), unemployed/self-employed individuals (β′=-0.077), living in rural areas (β′=-0.059), monthly household income of <10 000 yuan (<5 000 yuan, β′=-0.238; 5 000 to 10 000 yuan, β′=-0.169), in the third trimester of gestation (β′=-0.135), pre-pregnancy BMI of 25 kg/m2 and higher (β′=-0.214) and reduced the motivation for weight self-management among pregnant women. Conclusion The motivation for weight self-management correlates with gestational period, pre-pregnancy BMI, residence, occupation, educational level and monthly household income among pregnant women.
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