Research Management, Hospital Foundation of Minas Gerais (FHEMIG), Belo Horizonte, Minas Gerais, Brazil.
Rev Panam Salud Publica. 2011 May;29(5):303-8. doi: 10.1590/s1020-49892011000500001.
To correlate international official data on Cesarean delivery rates to infant and maternal mortality rates and low weight-at-birth rates; and to test the hypothesis that Cesarean rates greater than 15% correlate to higher maternal and infant mortality rates.
Analyses were based on the most recent official data (2000-2009) available for 193 countries. Exponential models were compared to quadratic models to regress infant mortality rates, neonatal mortality rates, maternal mortality rates, and low weight-at-birth rates to Cesarean rates. Separate regressions were performed for countries with Cesarean rates greater than 15%.
In countries with Cesarean rates less than 15%, higher Cesarean rates were associated to lower infant, neonatal, and maternal mortality rates, and to lower rates of low weight-at-birth. In countries with Cesarean rates greater than 15%, Cesarean rates were not significantly associated with infant or maternal mortality rates.
There is an inverse exponential relation between countries' rates of Cesarean deliveries and infant or maternal mortality rates. Very low Cesarean rates (less than 15%) are associated with poorer maternal and child outcomes. Cesarean rates greater than 15% were neither correlated to higher maternal nor child mortality, nor to low weight-at-birth.
将国际官方剖宫产率数据与婴儿和产妇死亡率以及低出生体重率相关联；并检验剖宫产率大于 15%与较高的母婴死亡率相关的假设。
分析基于 193 个国家的最新官方数据（2000-2009 年）。将婴儿死亡率、新生儿死亡率、产妇死亡率和低出生体重率与剖宫产率进行回归分析，比较了指数模型和二次模型。对剖宫产率大于 15%的国家进行了单独回归。
在剖宫产率低于 15%的国家中，较高的剖宫产率与较低的婴儿、新生儿和产妇死亡率以及较低的低出生体重率相关。在剖宫产率大于 15%的国家中，剖宫产率与婴儿或产妇死亡率没有显著相关性。
国家剖宫产率与婴儿或产妇死亡率之间存在反比例关系。非常低的剖宫产率（低于 15%）与较差的母婴结局相关。剖宫产率大于 15%既与较高的母婴死亡率无关，也与低出生体重无关。
