| Summary: | The purpose of this study was to investigate the association between pregnancy-specific anxiety and elective cesarean section, and identify the critical period in which pregnancy-specific anxiety will affect the elective cesarean section. Primiparous women in the 1st trimester of pregnancy were invited to participate in the cohort. General information on maternal socio-demographic characteristics and environmental exposure were collected using questionnaires. Pregnancy-specific anxiety was assessed by using pregnancy-specific anxiety questionnaire in the 1st, 2nd and 3rd trimester, respectively. Delivery modes and pregnancy complications were abstracted from medical notes. Structural equation modeling (SEM) was adopted to examine the relationship between pregnancy-specific anxiety and elective cesarean section. Results indicated the overall elective cesarean section rate in this study was 45%. Among 1 874 pregnant women, 30.9% women experienced anxiety at least once during pregnancy, and 6.9% women suffered from anxiety in all three trimesters. Anxiety in the 2nd trimester was a significant predictor for elective cesarean section. Young maternal age and low educational level had indirect effects on women's choice of elective caesarean section through affecting pregnancy-specific anxiety. More attention should be paid to maternal psychological problems, and professional counseling needs to be strengthened to protect women from pregnancy-specific anxiety.
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