Public HealthMaternal HealthSociologyMaternal MortalitySocial Determinants Of HealthSocial InequalityInfant MortalityMortality AnalysisMortality PatternsNeonatal MortalityPerinatal MortalitySocial ClassPerinatal Mortality InequalitiesSocioeconomic Determinants Of RiskSocioeconomic Gradients In MortalitySocioeconomic Mortality DifferentialsSocioeconomic Mortality Gradients