A comparison of behavioral and psychological characteristics of patients opting for surgical and conservative treatment for morbid obesity

Table 3 Motivation, goal attainment, and expectations between patients opting for non-surgical and surgical obesity treatment

			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

Note: α Cronbach’s alpha, SD standard deviation, Estimate of effect size: ηp² = Partial Eta-squared

ISSN: 2052-9538