Abstract: Objective To explore the mental status and its influencing factors of pregnant women in Haikou City, so as to provide a scientific basis for improving maternal and infant health. Methods From January 2020 to September 2022, pregnant women who underwent obstetric examinations and established records at 4 medical institutions in Haikou City were selected to investigate by a self-designed general situation questionnaire and Symptom Check List-90 （SCL-90）. The mental status of pregnant women in Haikou City was analyzed by descriptive epidemiological method, and the related influencing factors were analyzed by univariate and multivariate Logistic regression analysis methods. Results The average score of SCL-90 of 4 522 pregnant women was （139.75±21.67）, the total score of Pregnancy Pressure Scale （PPS） was （65.51±6.18）, the total score of General Well Being Schedule （GWBS） was （69.65±3.63）, and the total score of childbirth attitudes questionnaire （CAQ） was （38.42±4.24）. Pearson correlation analysis showed that the score of SCL-90 was positively correlated with the score of PPS and CAQ （P< 0.01）, and negatively correlated with the score of GWBS （P<0.01）. Among 4 522 pregnant women, there were 801 pregnant women with a total score of over 160 on the SCL-90. Multivariate Logistic regression analysis showed that age ≥ 35 years （OR=5.807）, primipara （OR=2.492）, lower education level （OR=4.740）, diabetes （OR=1.589）, hypertension （OR=1.560）, preeclampsia （OR=1.940）, premature rupture of membranes （OR=1.754）, and sleep quality score≥ 7 （OR=4.225） were independent risk factors for positive SCL-90 scores of pregnant women. Conclusions There are some pregnant women in Haikou City with poor mental status. Psychological intervention should be carried out according to the independent risk factors of pregnant women's mental status to improve the level of mental health of pregnant women.

Key words: Pregnant women, Mental status, SCL-90, Influencing factor