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Table 3 Rating of change in the Laval Questionnaire and the SF-36 after bariatric surgery (n = 48)

From: The laval questionnaire: a new instrument to measure quality of life in morbid obesity

Questionnaires Mean (SD) SRM* 25% Median 75% Range p value
Laval Questionnaire        
• Symptoms 2.1 (1.2) 1.8 1.4 2.2 3.2 -1.6 - 4.3 <0.0001
• Activity/Mobility 3.2 (1.6) 2.0 2.3 3.4 4.3 -0.2 - 5.6 <0.0001
• Personal hygiene/Clothing 3.4 (1.6) 2.1 2.0 3.4 4.8 0.6 - 6.0 <0.0001
• Emotions 2.3 (1.4) 1.6 1.3 2.3 3.2 -0.4 - 5.6 <0.0001
• Social interactions 2.8 (1.6) 1.8 1.5 2.9 3.9 -1.3 - 5.7 <0.0001
• Sexual life 2.5 (1.7) 1.5 1.0 2.5 4.0 -0.5 - 6.0 <0.0001
SF-36        
• Physical functioning 48.5 (27.8) 1.7 30.0 55.0 70.0 -25.0 - 90.0 <0.0001
• Role - physical 50.5 (47.1) 1.1 0.0 75.0 100.0 -75.0 - 100.0 <0.0001
• Bodily pain 27.2 (26.4) 1.0 10.0 31.2 42.5 -34.0 - 82.0 <0.0001
• General health perception 33.0 (27.8) 1.2 15.8 33.0 51.1 -37.0 - 85.0 <0.0001
• Energy/vitality 22.4 (22.6) 1.0 10.0 22.5 43.8 -25.0 - 70.0 <0.0001
• Social functioning 30.2 (35.0) 0.9 0.0 25.0 62.5 -37.5 - 100.0 <0.0001
• Role - emotions 31.2 (56.9) 0.5 0.0 0.0 100.0 -100.0 - 100.0 0.0004
• Mental health 12.6 (22.4) 0.6 -4.0 12.0 28.0 -44.0 - 52.0 0.0004
IWQOL-Lite        
• Physical Function 53.0 (24.5) 2.2 34.1 56.8 70.4 -9.1 - 100.0 <0.0001
• Self-Esteem 46.2 (29.8) 1.6 21.4 46.4 67.9 -3.6 - 100.0 <0.0001
• Sexual Life 29.6 (36.9) 0.8 0.0 25.0 51.6 -56.2 - 100.0 <0.0001
• Public Distress 49.9 (27.1) 1.8 25.0 55.0 71.25 -10.0 - 95.0 <0.0001
• Work 41.1 (30.0) 1.4 25.0 37.5 62.5 -25.0 - 100.0 <0.0001
  1. * SRM: standardized response mean = magnitude of change/the standard deviation of change [25]. The larger the standardized response mean, the more responsive to change the questionnaire.
  2. † p value attached to the within-group differences in scores in the patients who were treated over the study period (paired t-tests).