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Table 6 Results of regression models using changes in the IWQOL-Lite to predict changes in the Laval Questionnaire

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

Laval Questionnaire's domains Regression equation Correlation coefficient
(r)
D Laval Questionnaire corresponding to DIWQOL-Lite of 7.7* D Laval Questionnaire corresponding to DIWQOL-Lite of 12.0*
D Symptoms 0.034 × IWQOL-Lite Physical function + 0.38 0.73 0.64 0.78
D Activity/Mobility 0.055 × IWQOL-Lite Physical function + 0.27 0.87 0.69 0.93
D Personal hygiene/Clothing 0.048 × IWQOL-Lite Physical function + 0.84 0.74 1.21 1.42
D Emotions 0.035 × IWQOL-Lite Self-esteem + 0.73 0.72 1.00 1.15
D Social interactions 0.044 × IWQOL-Lite Public distress + 0.64 0.74 0.97 1.16
D Sexual life 0.024 × IWQOL-Lite Sexual Life + 1.72 0.53 1.91 2.01
  1. * MCID of the IWQOL-Lite = 7.7 to 12 on a 100-point scale; from reference [29].