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Table 2 Mean, standard deviation (SD), coefficient of variation (CV) of the Montgomery-Åsberg Depression Rating Scale (MADRS) for severely obese patients (N = 374). Item-total correlation and commonalities

From: Clinical utility of the Montgomery-Åsberg Depression Rating Scale for the detection of depression among bariatric surgery candidates

Item Mean SD CV α h 2
Apparent sadness 1.10 1.70 1.55 0.92 0.79
Reported sadness 0.99 1.72 1.74 0.92 0.77
Inner tension 0.94 1.47 1.56 0.92 0.71
Reduced sleep 1.00 1.63 1.63 0.93 0.41
Reduced appetite 0.48 1.08 2.25 0.94 0.33
Concentration difficulties 0.74 1.39 1.88 0.93 0.62
Lassitude 0.76 1.38 1.82 0.92 0.67
Inability to feel 0.76 1.45 1.91 0.92 0.81
Pessimistic thoughts 0.63 1.35 2.14 0.92 0.74
Suicidal thoughts 0.33 0.99 3.00 0.93 0.49
Total 7.73 11.33 1.47 0.93 0.63a
  1. CV Pearson’s coefficient of variation = SD/Mean
  2. α Cronbach’s alpha coefficient of internal consistency
  3. h 2 Commonality
  4. aTotal percentage of data explained by unidimensional model of the MADRS