Table 3 The distribution of the weighted means of the trial arms of the primary outcome in percentage points of the best value in the PROM scale categorized by the follow-up time-point in 107 RCTs
From: Estimates of the mean difference in orthopaedic randomized trials: obligatory yet obscure
Weighted mean in percentages of the best score in the PROM scale | Number of RCTs (%) | Follow-up time not applicable | Follow-up under 3 months | Follow-up between 3 and 6 months | Follow-up between 6 and 12 months | Follow-up over 12 months |
|---|---|---|---|---|---|---|
<=60 % | 19 (18 %) | 1 (5 %) | 11 (58 %) | 3 (5 %) | 1 (5 %) | 3 (16 %) |
Over 60 % and < = 75 % | 24 (23 %) | 2 (8 %) | 6 (25 %) | 7 (29 %) | 1 (4 %) | 8 (33 %) |
Over 75 % and < = 85 % | 26 (25 %) | 2 (8 %) | 3 (12 %) | 2 (8 %) | 9 (35 %) | 10 (38 %) |
Over 85 % and < 90 % | 23 (23 %) | 0 | 4 (17 %) | 3 (13 %) | 4 (17 %) | 12 (52 %) |
Over 90 % | 15 (14 %) | 0 | 0 | 2 (13 %) | 2 (13 %) | 11 (73 %) |