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Correlation of Cesarean rates to maternal and infant mortality rates: an ecologic study of official international data

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Date
2011
Author
Volpe, Fernando Madalena
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Abstract
OBJECTIVE: 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 percent correlate to higher maternal and infant mortality rates. METHODS: 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 percent. RESULTS: In countries with Cesarean rates less than 15 percent, higher Cesarean rates were associated to lower infant, neonatal, and maternal mortality rates, and to lower rates of low weightat-birth. In countries with Cesarean rates greater than 15 percent, Cesarean rates were not significantly associated with infant or maternal mortality rates. CONCLUSIONS: 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 percent) are associated with poorer maternal and child outcomes. Cesarean rates greater than 15 percent were neither correlated to higher maternal nor child mortality, nor to low weight-at-birth.(AU)
 
OBJETIVO: Correlacionar los datos oficiales internacionales sobre las tasas de parto por cesárea con las tasas de mortalidad materna e infantil y con la tasa de bajo peso al nacer, y someter a prueba la hipótesis que sostiene que una tasa de cesáreas mayor de 15 por ciento se correlaciona con tasas de mortalidad materna e infantil más elevadas. MÉTODOS: Los análisis se basaron en los datos oficiales más recientes disponibles (2000-2009) de 193 países. Se compararon modelos exponenciales con modelos cuadráticos para hacer un análisis de regresión de las tasas de mortalidad infantil, neonatal y materna, así como de las tasas de bajo peso al nacer, respecto de las tasas de cesáreas. En los países con una tasa de cesáreas mayor de 15 por ciento se efectuaron análisis de regresión separados. RESULTADOS: En los países con una tasa de cesáreas menor de 15 por ciento, las tasas más elevadas se asociaron con tasas de mortalidad infantil, neonatal y materna más bajas, y con una tasa de bajo peso al nacer más baja. En los países con una tasa de cesáreas mayor de 15 por ciento, la tasa de cesáreas no tuvo una asociación significativa con las tasas de mortalidad infantil o materna. CONCLUSIONES: Existe una relación exponencial inversa entre las tasas nacionales de partos por cesárea y las tasas de mortalidad infantil o materna. Las tasas de cesáreas muy bajas (menores de 15 por ciento) se asocian con un peor pronóstico materno e infantil. Las tasas de cesáreas mayores de 15 por ciento no se correlacionaron con una mortalidad materna e infantil más elevada ni con bajo peso al nacer.(AU)
 
Series
Rev Panam Salud Publica;29(5),mayo 2011
Subject
Infant mortality; Maternal Mortality; Neonatal mortality; Cesarean Section; Birth weight; Mortalidad infantil; Mortalidad Materna; Mortalidad neonatal; Cesárea; Peso al nacer; Cesárea; Mortalidade Infantil; Mortalidade Materna; Recém-Nascido de Baixo Peso; Internacionalidade
URI
http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892011000500001
https://iris.paho.org/handle/10665.2/9537
Citation
Volpe, Fernando Madalena (2011) Correlation of Cesarean rates to maternal and infant mortality rates: an ecologic study of official international data. Rev Panam Salud Publica;29(5) 303-308,may 2011. Retrieved from http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S1020-49892011000500001
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