Non-surgical n = 261 | Bariatric surgery n = 301 | Adjusted for gender/age/BMI | |||||
---|---|---|---|---|---|---|---|
Range | α | Mean (SD) | Mean (SD) | F | p | ηp2 | |
Motivation for weight loss | 1–10 | 9.1 (1.1) | 9.2 (1.4) | 0.03 | 0.87 | ||
Social influence on treatment decision | 1–5 | 2.6 (1.1) | 2.3 (1.2) | 12.22 | <0.001 | 0.023 | |
Readiness for change | |||||||
- eat less | 0–10 | 9.0 (1.2) | 9.0 (1.3) | 0.03 | 0.86 | ||
- less overeating | 0–10 | 8.2 (2.6) | 8.4 (2.5) | 0.43 | 0.51 | ||
- increase activity | 0–10 | 9.0 (1.2) | 8.4 (1.6) | 26.11 | <0.001 | 0.047 | |
General self-efficacy | 1–4 | 0.88 | 2.9 (0.5) | 3.1 (0.4) | 20.23 | <0.001 | 0.037 |
Action + Coping planning | |||||||
- eating | 1–4 | 0.86 | 2.8 (0.5) | 3.0 (0.5) | 23.92 | <0.001 | 0.043 |
Action + Coping planning | |||||||
- physical activity | 1–4 | 0.92 | 2.6 (0.6) | 2.8 (0.6) | 2.68 | 0.10 | |
Weight loss goal | |||||||
- % happy weight | 2–60 | 29.8 (9.4) | 37.9 (8.0) | 59.76 | <0.001 | 0.101 | |
Future expectations | |||||||
- well-being | 1–10 | 0.88 | 7.6 (1.8) | 8.4 (1.4) | 38.08 | <0.001 | 0.067 |
- social competence | 1–10 | 0.71 | 6.8 (1.9) | 7.2 (1.8) | 8.74 | <0.01 | 0.016 |