Sibley Lynn M, Sipe Theresa Ann, Barry Danika
Family and Community Nursing, Nell Hodgson Woodruff School of Nursing, Atlanta, Georgia, USA.
Cochrane Database Syst Rev. 2012 Aug 15;2012(8):CD005460. doi: 10.1002/14651858.CD005460.pub3.
Between the 1970s and 1990s, the World Health Organization promoted traditional birth attendant (TBA) training as one strategy to reduce maternal and neonatal mortality. To date, evidence in support of TBA training is limited but promising for some mortality outcomes.
To assess the effects of TBA training on health behaviours and pregnancy outcomes.
We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (18 June 2012), citation alerts from our work and reference lists of studies identified in the search.
Published and unpublished randomised controlled trials (RCT), comparing trained versus untrained TBAs, additionally trained versus trained TBAs, or women cared for/living in areas served by TBAs.
Three authors independently assessed study quality and extracted data in the original and first update review. Three authors and one external reviewer independently assessed study quality and two extracted data in this second update.
Six studies involving over 1345 TBAs, more than 32,000 women and approximately 57,000 births that examined the effects of TBA training for trained versus untrained TBAs (one study) and additionally trained TBA training versus trained TBAs (five studies) are included in this review. These studies consist of individual randomised trials (two studies) and cluster-randomised trials (four studies). The primary outcomes across the sample of studies were perinatal deaths, stillbirths and neonatal deaths (early, late and overall).Trained TBAs versus untrained TBAs: one cluster-randomised trial found a significantly lower perinatal death rate in the trained versus untrained TBA clusters (adjusted odds ratio (OR) 0.70, 95% confidence interval (CI) 0.59 to 0.83), lower stillbirth rate (adjusted OR 0.69, 95% CI 0.57 to 0.83) and lower neonatal death rate (adjusted OR 0.71, 95% CI 0.61 to 0.82). This study also found the maternal death rate was lower but not significant (adjusted OR 0.74, 95% CI 0.45 to 1.22).Additionally trained TBAs versus trained TBAs: three large cluster-randomised trials compared TBAs who received additional training in initial steps of resuscitation, including bag-valve-mask ventilation, with TBAs who had received basic training in safe, clean delivery and immediate newborn care. Basic training included mouth-to-mouth resuscitation (two studies) or bag-valve-mask resuscitation (one study). There was no significant difference in the perinatal death rate between the intervention and control clusters (one study, adjusted OR 0.79, 95% CI 0.61 to 1.02) and no significant difference in late neonatal death rate between intervention and control clusters (one study, adjusted risk ratio (RR) 0.47, 95% CI 0.20 to 1.11). The neonatal death rate, however, was 45% lower in intervention compared with the control clusters (one study, 22.8% versus 40.2%, adjusted RR 0.54, 95% CI 0.32 to 0.92).We conducted a meta-analysis on two outcomes: stillbirths and early neonatal death. There was no significant difference between the additionally trained TBAs versus trained TBAs for stillbirths (two studies, mean weighted adjusted RR 0.99, 95% CI 0.76 to 1.28) or early neonatal death rate (three studies, mean weighted adjusted RR 0.83, 95% CI 0.68 to 1.01).
AUTHORS' CONCLUSIONS: The results are promising for some outcomes (perinatal death, stillbirth and neonatal death). However, most outcomes are reported in only one study. A lack of contrast in training in the intervention and control clusters may have contributed to the null result for stillbirths and an insufficient number of studies may have contributed to the failure to achieve significance for early neonatal deaths. Despite the additional studies included in this updated systematic review, there remains insufficient evidence to establish the potential of TBA training to improve peri-neonatal mortality.
20世纪70年代至90年代期间,世界卫生组织推广传统助产士培训,作为降低孕产妇和新生儿死亡率的一项策略。迄今为止,支持传统助产士培训的证据有限,但对某些死亡率结果显示出希望。
评估传统助产士培训对健康行为和妊娠结局的影响。
我们检索了Cochrane妊娠与分娩小组试验注册库(2012年6月18日)、我们工作的引文提醒以及检索中识别出的研究的参考文献列表。
已发表和未发表的随机对照试验(RCT),比较接受培训的与未接受培训的传统助产士、额外接受培训的与已接受培训的传统助产士,或由传统助产士服务的地区中接受护理/居住的妇女。
三位作者在首次更新综述中独立评估研究质量并提取数据。三位作者和一位外部评审员在本次第二次更新中独立评估研究质量,两位作者提取数据。
本综述纳入了六项研究,涉及超过1345名传统助产士、32000多名妇女和大约57000例分娩,这些研究考察了接受培训的与未接受培训的传统助产士(一项研究)以及额外接受培训的传统助产士与已接受培训的传统助产士(五项研究)的培训效果。这些研究包括个体随机试验(两项研究)和整群随机试验(四项研究)。研究样本中的主要结局为围产期死亡、死产和新生儿死亡(早期、晚期和总体)。
一项整群随机试验发现,接受培训的传统助产士组与未接受培训的传统助产士组相比,围产期死亡率显著更低(调整比值比(OR)0.70,95%置信区间(CI)0.59至0.83),死产率更低(调整OR 0.69,95%CI 0.57至0.83),新生儿死亡率更低(调整OR 0.71,95%CI 0.61至0.82)。该研究还发现孕产妇死亡率更低但不显著(调整OR 0.74,95%CI 0.45至1.22)。
三项大型整群随机试验比较了在复苏初始步骤(包括面罩气囊通气)中接受额外培训的传统助产士与在安全、清洁分娩及新生儿即时护理方面接受过基础培训的传统助产士。基础培训包括口对口复苏(两项研究)或面罩气囊复苏(一项研究)。干预组与对照组之间围产期死亡率无显著差异(一项研究,调整OR 0.79,95%CI 0.61至1.02),干预组与对照组之间晚期新生儿死亡率无显著差异(一项研究,调整风险比(RR)0.47,95%CI 0.20至1.11)。然而,干预组新生儿死亡率比对照组低45%(一项研究,分别为22.8%和40.2%,调整RR 0.54,95%CI 0.32至0.92)。
我们对两项结局进行了Meta分析:死产和早期新生儿死亡。额外接受培训的传统助产士与已接受培训的传统助产士在死产(两项研究,平均加权调整RR 0.99,95%CI 0.76至1.28)或早期新生儿死亡率(三项研究,平均加权调整RR 0.83,95%CI 0.68至1.01)方面无显著差异。
对于某些结局(围产期死亡、死产和新生儿死亡),结果显示出希望。然而,大多数结局仅在一项研究中报道。干预组和对照组培训缺乏对比可能导致了死产的无效结果,而研究数量不足可能导致早期新生儿死亡未达到显著性差异。尽管本次更新的系统综述纳入了更多研究,但仍缺乏足够证据来确定传统助产士培训改善围产儿死亡率的潜力。