Table 2 A summary of the sample size of the four CRCTs analysed in this study
Trial | No. of clusters | No. of clusters missing | No. of subject | Missing n (%) | Average cluster size | (Min, Max) cluster size | Median cluster size |
|---|---|---|---|---|---|---|---|
PoNDER | 101 | 1 | 2659 | 35 (1) | 27 | (1, 101) | 21 |
Informed Choice | 10 | 0 | 1547 | 108 (7) | 155 | (74, 308) | 145 |
Bridging the Age Gap | 43 | 0 | 748 | 36 (5) | 18 | (1, 73) | 16 |
NOSH | 92 | 0 | 9207 | 0 (0) | 100 | (12, 333) | 75 |