Sensitivity and specificity of dementia coding in two Swedish disease registries.
The authors investigated the sensitivity and specificity of dementia identification in two Swedish disease registries by using clinical diagnoses from two population-based studies as gold standards. The probability of dementia detected by the Inpatient Discharge Registry was 55% for prevalent patients and 31% for incident patients and was higher than detection by the Cause of Death Registry. Specificity was 98% for the Inpatient Discharge Registry and 100% for the Cause of Death Registry.
Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden.
Ya-Ping
YP
Jin
Margaret
M
Gatz
Boo
B
Johansson
Nancy L
NL
Pedersen
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000453:epidemiology; D002423:Cause of Death; D003704:Dementia / Q000145:classification* / Q000453:epidemiology; D015140:Dementia, Vascular / Q000453:epidemiology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D004200:Diseases in Twins / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D038801:International Classification of Diseases; D008297:Male; D008875:Middle Aged; D010351:Patient Discharge / Q000706:statistics & numerical data; D015995:Prevalence; D012042:Registries; D012680:Sensitivity and Specificity; D013548:Sweden / Q000453:epidemiology; D014429:Twins, Dizygotic