Studying psychoactive substance use in injured patients: Does exclusion of late arriving patients bias the results?

作者: Stig Tore Bogstrand , Ingeborg Rossow , Per Trygve Normann , Øivind Ekeberg

DOI: 10.1016/J.DRUGALCDEP.2012.06.029

关键词: Emergency departmentSuicide preventionOccupational safety and healthHuman factors and ergonomicsDiscriminant function analysisPoison controlEmergency medicineSelection biasMedicineMedical emergencyInjury prevention

摘要: BACKGROUND: Most studies of the prevalence psychoactive substances in injured emergency department patients have excluded those who arrive more than 6h after injury. This may cause a selection bias. The aim this study was: (1) to describe characteristics injury, compared sooner (2) examine whether self-report can add assessment alcohol use when patient is assessed METHODS: Blood sample analysis and data were used assess admitted an within 48h injury (n=1611). Discriminant function was group differences. RESULTS: arrived differed significantly from earlier several respects. They often screened positive for hypnotics; they older, likely had fall at home night. Self reported showed good consistency with blood screening could therefore be CONCLUSIONS: Patients differ earlier. Future on departments expand inclusion window. Language: en

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