ScotlandWalesNew South WalesEnglandGreat BritainIncidenceState MedicineHebridesAge FactorsSocial ClassInfant, NewbornSex DistributionAge DistributionMortalitySex FactorsSuicideSocioeconomic FactorsFamily PracticeAsphyxiaRisk FactorsPrevalenceMedical AuditPublic FacilitiesNorthern IrelandIrelandDisease OutbreaksDrug OverdoseSeasonsMedical Record LinkageCause of DeathCohort StudiesQuestionnaires