Table 1 Baseline characteristics for patients with rheumatoid arthritis and information from EIRA (1996–2015) and SRQ (n=2820)
All cases, n=2820 | Subgroup with data on social support, n=2800 | Subgroup with data on decision latitude at work, n=847a | |||
|---|---|---|---|---|---|
Low social support, n = 591 | Not low social support, n = 2209 | Low decision latitude at work, n = 212 | Not low decision latitude at work, n = 635 | ||
Age (years), median (IQR) | 55 (44–62) | 56 (46–63) | 55 (43–62) | 51 (41–57) | 52 (42–57) |
Female sex,n(%) | 2001 (71.1) | 427 (72.3) | 1563 (70.8) | 151 (71.6) | 431 (67.9) |
RF pos,n(%) | 1796 (63.9) | 374 (63.7) | 1406 (63.8) | 137 (64.9) | 429 (67.6) |
ACPA pos,n(%) | 1804 (65.3) | 380 (65.4) | 1408 (65.2) | 138 (66.7) | 427 (68.1) |
Symptom duration (months), median (IQR) | 5.8 (3.6–9.4) | 5.8 (3.5–9.5) | 5.8 (3.6–9.4) | 6.0 (4.1–8.9) | 5.9 (3.7–8.9) |
Low social support,n(%) | 591 (21.0) | - | - | 50 (23.7) | 103 (16.2) |
Low decision latitude at work,n(%)a | 211 (25.0) | 50 (32.7) | 161 (23.2) | - | - |
DAS28-CRP, median (IQR) | 4.9 (4.2–5.7) | 5.0 (4.3–5.8) | 4.9 (4.1–5.6) | 5.1 (4.3–5.9) | 5.0 (4.3–5.7) |
HAQ-score, median (IQR) | 1.00 (0.63–1.38) | 1.00 (0.75–1.50) | 1.00 (0.50–1.38) | 1.00 (0.63–1.38) | 1.00 (0.50–1.38) |
VAS pain, median (IQR) | 51 (32–70) | 55 (35–75) | 51 (32–69) | 50 (33–68) | 49 (29–66) |
VAS global, median (IQR) | 51 (30-69) | 55 (35-75) | 50 (29–68) | 51 (29–69) | 49 (27–68) |
CRP, median (IQR) | 12 (6–29) | 12 (6–29) | 12 (6–28) | 14 (8–29) | 15 (8–31) |
Swollen joint count (SJC), median (IQR) | 8 (5–12) | 8 (5–13) | 8 (5–12) | 9 (5–14) | 9 (5–12) |
Tender joint count (TJC), median (IQR) | 7 (4–12) | 8 (4–12) | 7 (3–12) | 8 (4–13) | 8 (4–12) |
Ever smoking,n(%) | 1802 (66.4) | 408 (71.1) | 1380 (65.1) | 153 (72.5) | 430 (67.7) |
University degree,n(%) | 701 (25.9) | 100 (17.4) | 598 (28.2) | 29 (13.7) | 225 (35.4) |
Ever drinker,n(%) | 2442 (90.3) | 491 (86.0) | 1937 (91.5) | 187 (88.6) | 581 (91.5) |