Somatic Symptoms of Depression Lose Association with Mortality upon Adjustment for Frailty: Analysis from the Fitness Haemodialysis Cohort

Table 2

Incidence rate ratios of hospital admissions associated with the PHQ-9 somatic component score. Fully adjusted model including CFS.

	HR	Lower 95% C.I.	Upper 95% C.I.	P
PHQ-9 somatic score	1.00	0.959	1.04	0.993
Age	1.12	1.02	1.23	0.019
CFS	0.989	0.978	1.00	0.044
Gender
Male	REFERENCE
Female	0.969	0.785	1.20	0.770
Ethnicity
White	REFERENCE
South Asian	0.826	0.622	1.10	0.188
Black	0.687	0.504	0.937	0.018
Other	0.848	0.436	1.65	0.628
BMI	0.998	0.983	1.01	0.757
IMD quintile
1	REFERENCE
2	0.887	0.664	1.18	0.415
3	0.829	0.610	1.13	0.231
4	0.808	0.542	1.21	0.298
5	0.771	0.495	1.20	0.250
Unknown	1.25	0.830	1.87	0.289
Charlson index	1.09	1.03	1.17	0.006
Previous admissions	1.10	1.05	1.16	<0.001
Medication number	1.02	0.989	1.05	0.208
Smoking status
Current smoker	REFERENCE
Ex-smoker	0.842	0.598	1.18	0.324
Never smoked	0.764	0.560	1.04	0.090
Albumin	0.998	0.994	1.00	0.155
Walking aid use
No	REFERENCE
Yes	1.50	1.17	1.91	0.001
HD vintage	1.000	0.998	1.00	0.968
Transplant listed
No	REFERENCE
Yes	0.903	0.633	1.29	0.575
Constant	0.003	0.001	0.007	<0.001

Incidence rate ratios obtained by negative binomial regression. Bold text indicates significance at the 5 level.