Objective To evaluate factors associated with labor pain and delivery outcomes.Methods From Jul.to Dec.2009,111 normal singleton cephalic presentation pregnancies (including 5 elderly parturient) who delivered at the Department of Obstetrics and Gynecology,Second Affiliated Hospital,Zhejiang Chinese Medical University were enrolled in this study to evaluate the relationship between factors of labor pain and delivery outcomes.The labor pain of latent phase and active phase were scored by the visual analogue scale (VAS).Factors associated with pain included the age of parturient,the number of gravidity and parity,occupation,education profile,dwell location,etc.The questionnaire was designed by ourselves.Childbirth awareness,psychological preparation of delivery,emotional controllability,couple relationship,the relationship of parturient and mother-in-law,the relationship of parturient and parents,family economic status,use of sedative during the labor process and delivery outcomes were collected and analyzed.Results (1)Factors associated with pain:in the latent phase,the rate of moderate labour pain of 1/5 in women with more than 35 years old was statistically lower than 76.4％ ( 81/106 ) in suitable age group (P＜0.05 ).The women with a good understanding about delivery had a statistically lower rate of moderate pain of 64.7％( 44/68 ) than 88.4％ ( 38/43 ) of those having a poor understanding( P＜0.05 ).The women who had a better couple relationship had a significandy higher rate of moderate pain of 77.2％ (78/101) than 4/10 of those who had a general couple relationship ( P＜0.05 ).There was significant difference in rate of moderate pain between pluripara group ( 50.0％,11/22) and primipara group(79.8％,71/89;P＜0.01 ).In the active phase,women with tense,scared or a poor emotion control expressed significantly severe labour pain(59.0％,36/61 ) than 35.6％ ( 16/45 ) in well-prepared group.The rate of severe labour pain in good control of emotion group of 44.8％ (43/96) was a statistically lower than 9/10 in poor control group.There was a statistically lower severe labour pain in women given by sedatives ( 29.2％,7/24 ) than 54.9％ (45/82) in women without sedatives treatment (P ＜ 0.05).(2) Delivery outcomes:in latent phase,the rates of fetal distress and cesarean section were 36.6％ (30/82) and 39.0％ (32/82) in moderate pain group,which were significantly higher than 13.8％ (4/29) and 17.2％ (5/29) in mild pain group.In active phase,the rate of fetal distress,cesarean section and postpartum hemorrhage were 36.5％ ( 19/52),40.4％ (21/52) and 13.5％ (7/52) in severe pain group,which were significantly higher than [18.5％ (10/54) ;20.4％ (11/54) ;0] in moderate pain group (P＜0.05).Conclusions Women with poor understanding of delivery,tense,scared,poor emotion control,young age and uniparous have severe labour pain.Sedative use could alleviate pain in active phase.Women with mild labour pain have good delivery outcomes.%目的 评估分娩疼痛程度及其相关因素与分娩结局.方法 选择2009年7-12月在浙江中医药大学附属第二医院住院分娩的正常单胎头位产妇111例,其中高龄产妇5例,采用视觉模拟评分( VAS)法评估潜伏期、活跃期疼痛程度；评估疼痛相关因素包括孕妇年龄、孕次、产次、职业、文化程度、居住地等.自行设计调查问卷,由经过培训的专业人员分别对孕妇进行分娩认知、分娩的心理准备、情绪控制能力、夫妻感情、婆媳关系、与父母关系、家庭经济状况的评估,记录产程中镇静剂的应用情况,统计分娩结局.结果 (1)疼痛相关因素:潜伏期:高龄产妇中度疼痛发生率(1/5)明显低于适龄产妇(76.4％,81/106)；对分娩认知良好的产妇中度疼痛发生率(64.7％,44/68)低于认知不足的产妇(88.4％,38/43)；夫妻感情良好的产妇中度疼痛发生率(77.2％,78/101)明显高于感情一般的产妇(4/10);经产妇中度疼痛发生率明显低于初产妇,上述各项比较,差异均有统计学意义(P＜0.05).活跃期:进入活跃期的产妇共106例,其中对分娩的心理准备充分者重度疼痛发生率(35.6％,16/45)明显低于对分娩紧张和恐惧者(59.0％,36/61)；情绪控制能力良好的产妇重度疼痛发生率(44.8％,43/96)低于情绪控制不良的产妇(9/10)；应用镇静剂的产妇重度疼痛发生率(29.2％,7/24)低于未用镇静剂的产妇(54.9％,45/82),上述各项比较,差异也均有统计学意义(P＜0.05).(2)分娩结局:潜伏期中度疼痛者胎儿窘迫发生率(36.6％,30/82)、剖宫产率(39.0％,32/82)均显著高于轻度疼痛者(13.8％,4/29和17.2％,5/29),活跃期重度疼痛者胎儿窘迫发生率(36.5％,19/52)、剖宫产率(40.4％,21/52)、产后出血发生率(13.5％,7/52)均显著高于中度疼痛者[分别为18.5％ (10/54)、20.4％ (11/54)和0],差异均有统计学意义(P＜0.05).结论 对分娩认知不良、紧张和恐惧、情绪控制能力差、年轻、初产妇分娩疼痛剧烈；活跃期应用镇静剂可以减轻分娩疼痛；自觉疼痛程度轻的产妇分娩结局好.
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