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Table 2 Descriptive characteristics of older Medicare enrollees with rheumatoid arthritis, psoriatic arthritis, and osteoarthritis

From: The delivery of evidence-based preventive care for older Americans with arthritis

Variable Rheumatoid arthritis
N = 141,140
Psoriatic arthritis
N = 6,300
Osteoarthritis
N = 770,520
Demographics    
Age    
   65 to 69 32.5 39.4 23.9
   70 to 74 31.2 31.8 27.1
   75 to 84 22.3 18.7 25.4
   85+ 10.4 8.3 15.0
Gender, %    
   Female 76.9 60.0 72.9
   Male 23.1 40.0 27.1
Race, %    
   Asian 0.8 - 1.1
   Black 6.4 - 7.7
   Hispanic 1.6 - 2.0
   Other 1.2 - 1.0
   White 90.0 97.1 88.2
Rural/Urban, %    
   Urban Core 64.3 71.4 65.1
   Not Urban Core 35.8 25.6 34.9
Geographic Region, %    
   Northeast 20.5 26.7 20.9
   Midwest 26.1 21.9 24.6
   West 14.9 13.3 14.8
   South 38.5 38.1 39.6
Income in $, %    
   0 to - <30,000 20.0 13.7 22.5
   30,000 to <45,000 39.4 34.0 38.3
   45,000 to <60,000 22.3 22.2 21.2
   60,000 to <75,000 10.5 14.6 9.7
   75,000+ 7.8 15.6 8.3
Comorbidities, %    
   Myocardial infarction 2.5 - 2.5
   Heart failure 5.6 3.5 6.4
   Cardiovascular disease 4.1 5.4 5.4
   Dementia 0.5 - 0.8
   Chronic pulmonary disease 14.1 11.8 13.4
   Cancer (any) 6.7 7.6 7.6
   Hypertension 37.1 42.2 49.0
   Osteopenia 0.8 - 0.9
   Osteoporosis 9.7 5.1 7.0
   Closed hip fracture 0.8 - 0.7
Physician Specialty (≥2 visits), %    
   No rheumatology and no primary care 6.5 5.1 18.9
   Rheumatology but no primary care 23.9 27.0 4.2
   Primary care but no rheumatology 30.9 21.6 68.4
   Both Rheumatology and primary care 38.7 46.4 8.5
Physician Visits, n 14.3 (0, 142) 15.2 (2, 64) 12.8 (0, 168)
Number of days of inpatient hospitalization, n 2.2 (0, 365) 1.7 (0, 66) 3.0 (0, 348)
Receipt of any Long Term Care, % 2.3 0.6 3.5
  1. Data shown as % or as mean (range). All data were assessed in the 12-month baseline period before the start of the five-year observation period.
  2. Totals may not sum to exactly 100% due to rounding.
  3. Cells with a "-"were suppressed due to requirements imposed by data use agreement restrictions related to small cell sizes