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- Parity, total second stage of labor duration, duration of second labor stage beyond one hour, and perinea wound pain were the most significant predictors of delayed lactation onset. (3)产次、第二产程时间、第二产程时间大于一小时、第一到第三天会阴伤口疼痛分数，是延迟首次泌乳时间的重要预测因子。
- second labor stage 第二产程
- There are no significantly differences in the labor stage, the rate of using clamp, postpartum hemorrhage volume, newborn Apgar score between the two groups(P>0.05). 两组在产程、产钳使用率、产后 2h出血量及新生儿Apgar评分上均无显著性差异 (P >0 0 5 )。
- In comparison of gr oups A, B and group C, the first labor stage was obviously shorter (P<0.05), there w ere no statistically significant differences in rate of cesearean section and Ap gar scores . A、B两组与C组比较 ;第一产程均明显缩短(P <0 .;0 5 );剖宫产率、新生儿Apgar评分差异均无显著性。
- Results Uterine atony, placenta factor, obstetric trauma and coagulation defects are the main causes.The related factors include delivery way, labor stage factors and Psychological factors. 结果产后出血原因主要为子宫收缩乏力、胎盘因素、软产道损伤、凝血功能障碍等，影响产后出血的因素：分娩方式、产程胎盘因素、心理因素等。
- The second stage of labor usually lasts 4 hours. 第二产程通常持续4小时。
- Keywords Labor stage;first;Dystocia;Pregnancy outcome; 产程;第一;难产;妊娠结局;
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- It travels thousands of miles per second. 它一秒钟能走几千英里。
- The second snub settled his hash. 第二次碰壁使他不敢再找麻烦了。
- The second term commences in March. 第二学期自三月开始。
- He kicked the car down from third to second. 他把汽车排档从3档降为2档。
- Her second novel was taken apart by the critics. 她的第二部小说受到评论家的严厉批评。
- My father grows roses that are second to none. 我父亲种的玫瑰是最好的。
- The game didn't heat up until the second half. 游戏玩到后半场才热闹起来。
- The second batch of sugar is better than the first. 第二批制成的糖比第一批好。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He gave me a second shot of penicillin. 他又给我打了一针青霉素。
