Groups | ||||||
---|---|---|---|---|---|---|
Insert only | Atheoretical outsert | TPB outsert | Insert and atheoretical outsert | Insert and TPB outsert | Control | |
Allocated and invited | 252 | 252 | 252 | 252 | 252 | 252 |
Baseline return | 96 | 104 | 98 | 110 | 106 | 118 |
Follow-up return | 65 | 76 | 76 | 86 | 76 | 89 |
Excluded listwise (missing data) | 9 | 4 | 6 | 6 | 8 | 9 |
Included in analysis | 56 | 72 | 70 | 80 | 68 | 80 |