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Table 2 Scaling qualities of the WHOQOL-BREF domains

From: Performance of the WHOQOL-BREF among Norwegian substance use disorder patients

  Physical health QoL
(N = 107)
Psychological health QoL
(N = 107)
Social relation-ships QoL
(N = 102)
Environment QoL
(N = 107)
Mean (SD) 44.87 (16.98) 54.60 (17.11) 62.34 (18.50) 57.29 (16.82)
Median (IQR) 46.43 (17.83–17.03) 54.41 (33.57–75.25) 58.33 (33.33–83.33) 56.25 (33.60–78.90)
Range 3.6–82.1 16.67–100 8.33–100 25–96.88
CI 41.59–48.10 51.32–57.87 58.70–65.97 54.06–60.51
Kurtosis (SE) −0.27 (0.46) 0.26 (0.46) 0.14 (0.47) −0.73 (0.46)
Skewness (SE) −0.29 (0.23) 0.25 (0.23) −0.19 (0.24) 0.16 (0.23)
Significant test of normalitya p = 0.037 p = 0.004 p < 0.001 p = 0.024
Cronbach’s alpha 0.763 0.792 0.541 0.762
  1. aOne-Sample Kolmogorov-Smirnov Tests. QoL quality of life, IQR interquartile range, SE standard error
  2. Physical health, psychological health, and environment QoL domains of the WHOQOL-BREF exhibited satisfactory scaling qualities among a substance use disorder treatment population