Table 4.
Recruitment rates, numbers of participants screened, found to be eligible, approached and consented in all studies.
| All studies, n (%) | Evaluating an intervention (n = 71, 33%) | Assessing quality of life (n = 22, 10%) | Observing course of illness (n = 36, 17%) | Exploring views or perspectives (n = 60, 28%) | Evaluating current practice (n = 26, 12%) | |
|---|---|---|---|---|---|---|
| Numbers of potential participants screened | ||||||
| <50 | 7 (3) | 4 (6) | – | 1 (3) | 1 (2) | 1 (4) |
| 50–100 | 8 (4) | 2 (3) | 1 (5) | 2 (6) | 1 (2) | 2 (8) |
| 101–1000 | 29 (14) | 10 (14) | 4 (18) | 5 (15) | 7 (12) | 3 (12) |
| >1000 | 5 (2) | 2 (3) | – | 2 (6) | – | 1 (4) |
| Not reported | 166 (77) | 53 (75) | 17 (77) | 26 (72) | 51 (85) | 19 (73) |
| Percentage of eligible participants out of those screened | ||||||
| 0–50 | 10 (5) | 5 (7) | 1 (5) | 2 (6) | 1 (2) | 2 (8) |
| 51–100 | 31 (15) | 10 (16) | 3 (14) | 6 (17) | 4 (7) | 7 (27) |
| Not reported | 173 (80) | 55 (77) | 18 (81) | 16 (44) | 55 (92) | 17 (65) |
| Proportion approached out of those eligible (%) | ||||||
| 0–50 | – | – | – | – | – | – |
| 51–100 | 55 (26) | 18 (25) | 5 (23) | 8 (22) | 16 (26) | 8 (31) |
| Not reported | 160 (74) | 53 (75) | 17 (77) | 28 (78) | 44 (73) | 18 (69) |
| Proportion consented out of those approached (%) | ||||||
| 0–50 | 13 (6) | 3 (4) | 1 (5) | – | 5 (9) | 4 (16) |
| 51–100 | 69 (32) | 24 (34) | 5 (23) | 13 (72) | 18 (29) | 8 (34) |
| Not reported | 133 (62) | 44 (62) | 16 (73) | 21 (58) | 37 (62) | 14 (54) |
| Recruitment rate (percentage recruited out of those eligible) | ||||||
| 0–50 | 15 (7) | 8 (11) | 2 (10) | 2 (6) | 1 (2) | 2 (8) |
| 51–100 | 34 (16) | 12 (17) | 4 (18) | 7 (19) | 6 (10) | 5 (19) |
| Not reported | 166 (77) | 51 (72) | 16 (73) | 27 (75) | 53 (88) | 19 (73) |