Skip to main content

Advertisement

Table 1 Characteristics of 509 subjects from the MCBS (2001 to 2006) included in the rheumatoid arthritis cohort

From: Treatment of rheumatoid arthritis in the Medicare Current Beneficiary Survey

  N (%) or median (IQR)
Age at beginning of index round, years 70.1 (IQR 68.0 to 74.9)
Female 366 (71.9%)
Race/ethnicity  
   Non-Hispanic, white 389 (76.4%)
   Non-Hispanic, black 58 (11.4%)
   Hispanic 44 (8.6%)
   Non-Hispanic, Other 18 (3.5%)
Region (at index round)  
   Northeast 108 (21.2%)
   Midwest 120 (23.6%)
   South 176 (34.6%)
   West 96 (18.9%)
   Missing 9 (1.8%)
Years of education at index round  
   ≤ high school 343 (67.4%)
   Beyond high school 166 (32.6%)
Annual income (US dollars)  
   >50,000 26 (5.1%)
   >30,000 to 50,000 103 (20.2%)
   >20,000 to 30,000 110 (21.6%)
   >15,000 to 20,000 64 (12.6%)
   ≤ 15,000 187 (36.7%)
   Missing 19 (3.7%)
Rheumatology visit during prior year 120 (23.6%)
Number of comorbid conditions during index round  
   0 comorbid conditions 19 (3.7%)
   1 comorbid condition 183 (36.0%)
   2+ comorbid conditions 307 (60.3%)
Insurance status  
   Private insurance 315 (61.9%)
   Managed care 55 (10.8%)
   Drug insurance 382 (75.1%)
  1. All variables were measured at the survey round when individuals entered the rheumatoid arthritis study cohort. MCBS, Medicare Current Beneficiary Survey; IQR, interquartile range.