1. Chronic conditions and the decline in late-life disability
2. Chronic conditions and the decline in late-life disability
3. R.J. Klein and C.A. Schoenborn, “Age Adjustment Using the 2000 Projected U.S. Population,”Healthy People 2010 Statistical Notes20( 2001 ): 1 –10.
4. Visits related to chronic conditions were identified as follows: heart disease (International Classification of Diseases,Ninth Revision, Clinical Modification [ICD-9-CM] codes 392.0, 393–398, 404, 410–416, 427, 420–426, 428–429), cancer (140–208, 230–234, 338.3, V67.2), cerebrovascular diseases (430–438), lower respiratory disease (490–496), hypertension (401–405, 642, 760.0, 997.9), diabetes (250, 775.1, 790.20–790.29, 648.00–648.09, 648.80–648.89), and depression (290.13, 290.21, 290.43, 296.2–296.3, 296.5–296.6, 296.80, 296.82, 298.0, 300.4, 309.0–309.1, 309.28, 311, 648.4). Arthritis and other rheumatic conditions were identified by ICD-9-CM codes from “Prevalence of Arthritis—United States, 1997,”Morbidity and Mortality Weekly Report50, no. 17 ( 2001 ): 334 –336.