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Table 1 Patient demographics

From: Patient’s experience with subcutaneous and oral methotrexate for the treatment of rheumatoid arthritis

  Overall Biologic therapies SQ MTX Oral MTX P-value
N = 382 n = 218 n = 49 n = 115
Age, mean (SD), y 48.03 (10.21) 46.98 (10.44) 49.46 (9.94) 49.43 (9.72) 0.67
Gender, % female 91.10 89.45 89.80 94.78 0.25
Race of participantsa      
- American Indian 5 (1.3) 4 (1.8) 0 (0.0) 1 (0.9) 0.60
- Alaska Native 1 (0.3) 1 (0.5) 0 (0.0) 0 (0.0)
- Asian 3 (0.8) 1 (0.5) 1 (2.0) 1 (0.9)
- Native Hawaiian/other Pacific Islander 1 (0.3) 1 (0.5) 0 (0.0) 0 (0.0)
- Black/African-American 7 (1.8) 6 (2.8) 1 (2.0) 0 (0.0)
- White 353 (92.4) 200 (91.7) 45 (91.8) 108 (93.9)
- Other 12 (3.1) 5 (2.3) 2 (4.1) 5 (4.4)
Ethnicity      0.17
- Hispanic or Latino 19 (5.0) 8 (3.7) 5 (10.2) 6 (5.2)  
- Not Hispanic or Latino 360 (94.2) 209 (95.9) 43 (87.8) 108 (93.9)
- No answer 3 (0.8) 1 (0.5) 1 (2.0) 1 (0.9)
Participants Reside in the United States 343 (89.8) 197 (90.4) 43 (87.8) 103 (89.6) 0.85
Participants not from US 39 (10.2) 21 (9.6) 6 (12.2) 12 (10.4)  
Participant employment status
- Full time 145 (38.0) 89 (40.8) 14 (28.6) 42 (36.5) 0.09
- Part time 40 (10.5) 18 (8.3) 9 (18.4) 13 (11.3)
- Retired 25 (6.5) 10 (4.6) 2 (4.1) 13 (11.3)
- Homemaker 37 (9.7) 18 (8.3) 4 (8.2) 15 (13.0)
- Student 12 (3.1) 8 (3.7) 1 (2.0) 3 (2.6)
- Disabled 123 (32.2) 75 (34.4) 19 (38.8) 29 (25.2)
Participant health insurance
- Medicare 52 (13.6) 29 (13.3) 7 (14.3) 16 (13.9) 0.54
- Medicare advantage 18 (4.7) 10 (4.6) 3 (6.1) 5 (4.4)
- Medicaid 28 (7.3) 18 (8.3) 0 (0.0) 10 (8.7)
- Tri-care/Military 5 (1.3) 5 (2.3) 0 (0.0) 0 (0.0)
- Commercial/Private 227 (59.4) 134 (61.5) 27 (55.1) 66 (57.4)
- Other/type 54 (14.1) 24 (11.0) 9 (18.4) 21 (18.3)
- None 34 (8.9) 20 (9.2) 6 (12.2) 8 (7.0)
Monthly co-payment (n) N/A    
 $0   47 (21.6) 2 (4.1) 15 (13.0) <0.0001
  > $0–25   65 (29.8) 24 (49.0) 68 (59.1)
 $25–$40   13 (6.0) 5 (10.2) 16 (13.9)
 $40–80   23 (10.6) 0 (0.0) 6 (5.2)
 $80–100   7 (3.2) 0 (0.0) 0 (0.0)
  > $100   35 (16.1) 1 (2.1) 0 (0.0)
 Don’t know   0 (0.0) 3 (6.1) 10 (8.7)
 Missing   0 (0.0) 14 (28.6) 0 (0.0)
  1. data are shown as n (%)
  2. MTX methotrexate, SC subcutaneous, SD standard deviation
  3. arace data are not mutually exclusive