Abstract:Objective To explore the trajectory of pregnancy stress changes in pregnant women with cervical incompetence from 1 day before cervical cerclage surgery to 28 weeks of pregnancy, and analyze the predictive role of influencing factors on trajectory categories. Methods A prospective study design was used to select 149 pregnant women with cervical incompetence who underwent cervical cerclage surgery at the Women's Hospital of Nanjing Medical University from April 2022 to March 2023. Survey scales and data were distributed to pregnant women 1 day before cervical cerclage surgery, 1 month after surgery, and 28 weeks of pregnancy, respectively. Latent variable growth model was used to depict the trajectory of pregnancy stress changes in pregnant women, and a multiple logistic regression model was established to analyze the influencing factors of different types of pregnancy stress changes. Results There were three pregnancy pressure trajectories with different characteristics identified, named as the moderatedecreasing group (49.0%), moderate-stable group (24.8%), and low-decreasing group (26.2%). Logistic regression showed that the higher the levels of pregnancy related anxiety and sleep quality index, the more likely an individual was to be classified as moderate-stable group, while the higher the level of family care index, the less likely an individual was to be classified as moderate-stable group. Conclusion There are differences in pregnancy stress among pregnant women with cervical insufficiency, and pregnancy related anxiety, sleep quality, and family care index have been identified as the main factors affecting pregnancy stress, providing a reference basis for subsequent psychological intervention.