Research Article
Somatic Symptoms of Depression Lose Association with Mortality upon Adjustment for Frailty: Analysis from the Fitness Haemodialysis Cohort
Table 4
Fractional regression coefficients of somatic and cognitive component PHQ-9 scores upon EQ summary index.
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Obtained by fractional regression. Coefficient: change in the EQ fractional summary index score for each 1-point rise in PHQ-9 somatic or cognitive component scores. Univariable and adjusted models are shown. Model 1 included age, gender, ethnicity, education level, social support, IMD quintile, and employment status. Model 2 added to these haemodialysis vintage, Charlson comorbidity index (CKD omitted), haemoglobin, Kt/V, and current use of antidepressant medication. Model 3 added use of walking aids, slow walking (or inability to walk), and physical activity index. Model 4 added EQ self-rated health today (continuous score from 0 to 100) and self-rated health change. |