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. 2019 Jul 1;15:1723–1736. doi: 10.2147/NDT.S195505

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© 2019 Wang et al.

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Study assessment across study months. Error bars represent 95% confidence intervals. Baseline: (A) PDQ-D, n=589; (B) DSST, n=598; (C) HAM-D₁₇, n=598; (D) SDS, n=455; (E) WPAI-SHP absenteeism, n=313; presenteeism, n=278; overall work impairment, n=278; activity impairment, n=597; (F) EQ-5D, n=596. Month 6: PDQ-D, n=524; DSST, n=526; HAM-D₁₇, =530; WPAI-SHP absenteeism, n=286; presenteeism, n=272; overall work impairment, n=271; activity impairment, n=529; SDS, n=434; EQ-5D, n=525.

Abbreviations: DSST, Digit Symbol Substitution Test; EQ-5D, European Quality of Life Questionnaire – 5 Dimensions; HAM-D₁₇, Hamilton Depression Rating Scale – 17 items; PDQ-D, Perceived Deficits Questionnaire-Depression; SDS, Sheehan Disability Scale; WPAI-SHP, Work Productivity and Activity Impairment – Specific Health Problems Questionnaire.