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Table 2 Descriptive Statistics of the 9 MADRS-S Items and Total Score.

From: The self-reported Montgomery-Åsberg depression rating scale is a useful evaluative tool in major depressive disorder

  Missing Values Mean ± SD Correlationa Cronbach's α % Floor %Ceiling
Item 1: Mood 0 1.86 ± 0.84 0.68 *** 0.80b 10.1% 12.9%
Item 2: Feelings of Unease 0 2.06 ± 0.63 0.61 *** 0.82b 2.2% 15.5%
Item 3: Sleep 0 1.94 ± 0.68 0.43 *** 0.83b 4.3% 10.1%
Item 4: Appetite 0 1.39 ± 0.93 0.43 *** 0.84b 21.6% 7.6%
Item 5: Ability to Concentrate 0 1.92 ± 0.66 0.64 *** 0.81b 2.5% 10.4%
Item 6: Initiative 0 1.91 ± 0.70 0.62 *** 0.81b 4.0% 7.2%
Item 7: Emotional Involvement 0 1.58 ± 0.75 0.65 *** 0.81b 7.6% 5.4%
Item 8: Pessimism 0 2.06 ± 0.72 0.39 *** 0.84b 1.1% 22.7%
Item 9: Zest for Life 0 1.44 ± 0.75 0.55 *** 0.82b 8.3% 4.7%
MADRS-S Total Score 0 16.2 ± 4.4 -- 0.84c 0.0% 0.4%