Table 3.

Health related quality of life in surgery and control groups at baseline and changes in prevalence after 2 and 10 years of follow-up. Only the patients applicable for the certain timepoint are included in the statistical calculations.

	Baseline	Change at 2-year follow-up	Change at 10-year follow-up
	Surgery, n = 21	Surgery, n = 21	Surgery, n = 13
	Control, n = 14	Control, n = 13	Control, n = 8
Current health perceptions
Surgery	41.3 ± 19.8	21.8 ± 30.3	−0.8 ± 14.5
Control	35.1 ± 24.2	6.6 ± 16.2	6.8 ± 29.3
Social interaction
Surgery	15.5 ± 15.6	−9.9 ± 12.6*	−3.4 ± 8.9
Control	15.8 ± 11.1	0.4 ± 9.9	−9.7 ± 12.0
Obesity-related Problems scale
Surgery	48.4 ± 31.3	−35.1 ± 26.5***	−31.0 ± 26.7**
Control	28.3 ± 27.7	8.7 ± 19.6	−0.8 ± 14.6
Overall Mood
Surgery	2.85 ± 0.52	0.23 ± 0.41	0.09 ± 0.34
Control	2.79 ± 0.63	−0.01 ± 0.55	0.18 ± 0.32
Anxiety
Surgery	6.5 ± 4.4	−1.7 ± 3.5	−1.2 ± 2.8
Control	7.5 ± 4.8	−1.0 ± 2.7	−2.4 ± 4.2
Depression
Surgery	5.2 ± 2.8	−1.9 ± 2.7*	−0.7 ± 2.6*
Control	5.1 ± 2.7	0.5 ± 2.2	0.1 ± 2.8

P-value denotes differences in effects of treatment between the two groups from baseline to 2 and 10 years of follow-up.*P < .05, **P   < .01, ***P < .001.

Current health perceptions: scale range 0–100; high scores represent well-being.

Social interaction: scale range and obesity-related problems scale 0–100; high scores indicate dysfunction.

Overall mood: scale range 1–4; high scores represent well-being.

Anxiety and depression: scale range 0–21; high scores represent symptoms.