Conclusion: Socialdemological factors, mental stress are mainly influencing factors that affect dysthymia and cesarean section chosen in normal city primipara.

• 结论：社会人口学因素及妊娠晚期心理应激是正常初产妇妊娠晚期抑郁心境及选择剖宫产分娩方式的主要影响因素。