Are persons with unknown health status identified by the National Health Insurance Database (KDB) system at high‐risk of requiring long‐term care and death?
*CAUSES of death *HEALTH services accessibility *CONFIDENCE intervals *LIFE expectancy *AGE distribution *HEALTH status indicators *MEDICAL care costs *MEDICAL screening *NATIONAL health services *SEX distribution *PREVENTIVE health services *HUMAN services programs *HEALTH insurance *INTEGRATED health care delivery *DEATH *LONG-term health care *PROPORTIONAL hazards models