Table 2.

Association between depression, anxiety and dialysis withdrawal

Hazard ratio’s for dialysis withdrawal	Crude	Model 1 (+ age, gender, ethnicity)	Model 2 (+ comorbidity)
Depressive symptomsa	1.64 (0.83–3.25) p = 0.156	2.56 (1.27–5.15) p = 0.009	2.44 (1.21–4.93) p = 0.013
Anxiety symptomsb	1.35 (0.66–2.79) p = 0.411	2.31 (1.09–4.88) p = 0.028	2.02 (0.94–4.32) p = 0.071
Both depression and anxiety symptomsc	1.95 (0.87–4.38) p = 0.106	3.10 (1.35–7.11) p = 0.008	2.45 (1.05–5.71) p = 0.037

Model 1 includes both the exposure + age, gender and ethnicity

Model 2 includes both the variables from model 1 + additionally the DAVIES comorbidity score, which includes points for ischemic heart disease, heart failure, peripheral vascular disease, malignancy, diabetes, collagen vascular disease, COPD and others

^a The presence of depression is defined as a BDI score ≥ 13

^b The presence of anxiety is defined as a BAI score ≥ 16

^c Based on a grouping variable with both the BDI ≥ 13 AND BAI ≥ 16 versus patients with only anxiety or only depression or none