Ijaiya Munir'deen A, Adesina Kike T, Raji Hadijat O, Aboyeji Abiodun P, Olatinwo Abdulwaheed O, Adeniran Abiodun S, Adebara Idowu O, Isiaka-Lawal Salamat
Department of Obstetrics and Gynaecology, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
Ann Afr Med. 2011 Apr-Jun;10(2):115-9. doi: 10.4103/1596-3519.82074.
BACKGROUND/OBJECTIVE: Duration of labor varies from one pregnancy to another and a period of less than 12 hours is regarded as normal. Modern obstetric practice involves active management of labor with the aim of preventing prolonged labor and its sequelae. The main objective of this study was to determine and compare the average duration of labor of spontaneous onset between nulliparas (Po) and multiparas (P ≥ 1) and to determine factors affecting duration of labor.
This study was a prospective study carried out between 15 May and 14 June 2004 at the Labor Ward of the University of Ilorin Teaching Hospital, Ilorin, Nigeria. Two hundred and thirty-eight women who satisfied the inclusion criteria were studied. The inclusion criteria were term pregnancy with vertex presentation, labor with spontaneous onset, live fetus at presentation and spontaneous vertex delivery.
The mean ± SD admission-delivery interval in labor ward was shorter (3.77 ± 2.88 hours) among multiparas than that of nulliparas (5.00 ± 3.17 hours) (P = 0.235). The mean ± SD duration of labor (from the onset of labor to delivery) was shorter among multiparas (8.73 ± 4.17 hours) than that of nulliparas (11.23 ± 4.29 hours) (P = 0.426). The differences were not significant (t-test, P > 0.05). Maternal age and individual parity had significant correlation with the duration of labor in this study (Pearson correlation = -0.019, -0.027, respectively, P < 0.05).
Interestingly, duration of labor was not significantly different among multiparas and nulliparas although it was shorter. Correlation existed between duration of labor and maternal age and individual parity.
背景/目的：每次妊娠的产程各不相同，产程少于12小时被视为正常。现代产科实践包括对产程进行积极管理，以预防产程延长及其后遗症。本研究的主要目的是确定并比较初产妇（P0）和经产妇（P≥1）自然发动分娩的平均产程，并确定影响产程的因素。
本研究为前瞻性研究，于2004年5月15日至6月14日在尼日利亚伊洛林大学教学医院的产房进行。对238名符合纳入标准的女性进行了研究。纳入标准为足月妊娠、头先露、自然发动分娩、入院时活胎及自然头位分娩。
经产妇在产房的平均入院至分娩间隔时间（3.77±2.88小时）比初产妇（5.00±3.17小时）短（P=0.235）。经产妇的平均产程（从临产到分娩）（8.73±4.17小时）比初产妇（11.23±4.29小时）短（P=0.426）。差异无统计学意义（t检验，P>0.05）。在本研究中，产妇年龄和个人产次与产程有显著相关性（Pearson相关系数分别为-0.019、-0.027，P<0.05）。
有趣的是，经产妇和初产妇的产程虽较短，但差异无统计学意义。产程与产妇年龄和个人产次之间存在相关性。
