Table 1 Baseline characteristics of participants included in the study
Descriptor | Group 1 | Group 2 | Group 3 | All |
|---|---|---|---|---|
Classification | Responders | Partial responders | Non-responders | Â |
N (%) | 58 (48%) | 32 (26%) | 31 (26%) | 121 |
Age: mean (SD) | 56 (16) | 54 (15) | 63 (11) | 57 (15) |
Females (%) | 45 (78%) | 25 (78%) | 19 (61%) | 89 (74%) |
BMI: mean (SD) | 26.4 (5.1) | 27.4 (4.8) | 30.6 (7.6)* | 27.7 (6.0) |
ACPA positive (%) | 31/55 (56%) | 14/31 (45%) | 18/31 (58%) | 63/117 (54%) |
RF positive (%) | 39/55 (71%) | 13/31 (42%) | 18/31(58%) | 70/117 (60%) |
Smoking (%) | ||||
 Never | 29 (50%) | 16 (50%) | 7 (23%) | 52 (43%) |
 Former | 20 (34%) | 14 (44%) | 15 (48%) | 49 (41%) |
 Current | 9 (16%) | 2 (6%) | 9 (29%) | 20 (17%) |
 Odds ratioordinal (95% CI) for the likelihood of smoking | 1.2 (0.5, 2.7) | 1 | 3.6 (1.4, 9.2)* |  |
Weeks polyarthritis: median (IQR) | 16 (12, 24) | 16 (12, 24) | 20 (12, 28)* | 16 (12, 24) |
Randomized to fish oil (%) | 38 (66%) | 20 (63%) | 17 (54%) | 75 (62%) |