| Number of Sessions | Multiple Regular Groups | Any Multiple Groups | Any Advanced Groups | ||||
|---|---|---|---|---|---|---|---|
| Attendance | N | M‡ | SD | M§ | SD | %‖ | % |
| Outcome | |||||||
| Lost at least 5% | 179 | 13.49a | 2.03 | 1.87b | 1.22 | 39c | 62 days |
| Did not lose at least 5% | 131 | 12.17a | 1.58 | 1.53b | 2.06 | 19c | 38 days |
↵*Participants who achieved at least a 5% loss of their starting body weight versus those who did not.
↵†Means having a common letter in the subscript differ significantly at or beyond the 0.05 level of confidence based on a t-test for independent group means. Percentages having a common letter in the subscript differ significantly at or beyond the 0.05 level of confidence based on a z-test for independent proportions.
↵‡Mean number of sessions attended.
§Mean number of groups attended.
‖Percent of individuals who participated.
Abbreviations: CIWL, clinically important weight loss; SD, Standard deviation.