Table 4 Participants characteristics split up by tertiles of implementation score
|  |  | Implementation index score (range 0 – 9) |  | ||
|---|---|---|---|---|---|
|  | All (n = 155) | Low (n = 33) | Medium (n = 35) | High (n = 34) | Missing (n = 53) |
Implementation index score, mean (SD) | 5.7 (1.3)a | 4.3 (0.7) | 5.6 (0.3) | 7.1 (0.7) | - |
Baseline characteristics | |||||
 Age, mean (SD) | 57.5 (11.5) | 59.8 (10.5) | 54.5 (12.5) | 58.9 (11.0) | 57.1 (11.6) |
 Female, number (%) | 139 (90) | 27 (82) | 31 (89) | 30 (88) | 51 (96) |
 BMI (kgm2), mean (SD) | 29.2 (6.0) | 30.0 (6.1) | 27.5 (5.7) | 28.9 (4.8) | 30.0 (6.6) |
 Intervention group, number (%)b | 79 (51) | 14 (42) | 19 (54) | 18 (53) | 28 (53) |
Diagnosis, number (%) | |||||
 Rheumatoid arthritis | 77 (50) | 11 (33) | 21 (60) | 19 (56) | 26 (49) |
 Osteoarthritis | 62 (40) | 19 (58) | 9 (26) | 12 (35) | 22 (42) |
 Arthralgia | 14 (9) | 1 (3) | 5 (14) | 3 (9) | 5 (9) |
 Other | 2 (1) | 2 (6) | - | - | - |
Meeting type, number (%) | |||||
 Live | 50 (32) | 8 (24) | 9 (26) | 15 (44) | 18 (34) |
 Hybrid | 54 (35) | 10 (30) | 16 (46) | 7 (21) | 21 (40) |
 Online | 49 (32) | 15 (46) | 10 (39) | 12 (35) | 12 (23) |
 Change in dietary intake, n | 99 | 23 | 28 | 23 | 25 |
 Fiber (g/1000kcal), median [IQR] | 6.9 [3.4 – 9.6] | 5.9 [3.3 – 9.1] | 6.9 [4.0 – 8.3] | 6.9 [2.8 –11.3] | 7.4 [4.6 – 11.7] |
 Saturated fat (energy%), median [IQR] | –5.0 [–6.0 – (–1.0)] | –2.0 [–6.5 – (–1.5)] | –5.0 [–6.3 – (–4.0)] | –5.0 [–6.0 – (–1.0)] | –5.0 [–6.0 – (–2.0)] |
 Change in physical activity, n | 141 | 33 | 24 | 28 | 46 |
min/week, mean (SD) | 17 (135) | –2 (136) | 61 (124) | 23 (107) | –6 (152) |
 Change in stress relieving activities, n | 133 | 29 | 32 | 28 | 44 |
 min/week, mean (SD) | 3 (30) | 6 (23) | 9 (29) | –5 (33) | 3 (34) |