Do self-report and medical record comorbidity data predict longitudinal functional capacity and quality of life health outcomes similarly?

Table 2 Comparison of contributions of Katz (Self-Report) and Charlson (Medical-Record) comorbidity information to EQD-5 (Quality-of-Life) scores

Outcome:3-Month EQD-5 (N=438)	Model R-Squared	R-squared Change	F-Test/ F-change	Degrees of freedom	P-value
Model with covariates only^a	0.259	0.259	10.56	14/423	<0.0005
Covariate model +Katz	0.288	0.029	17.27	1/422	<0.0005
Covariate Model + Charlson	0.262	0.003	1.64	1/422	>0.201
Outcome: 8-Month EQD-5 (N=387)	Model R-Squared	R-squared Change	F-Test/ F-change	Degrees of freedom	P-value
Model with covariates only^a	0.240	0.240	8.40	14/372	<0.0005
Covariate model +Katz	0.265	0.025	12.52	1/371	<0.0005
Covariate Model + Charlson	0.245	0.005	2.28	1/371	>0.132

a. covariates: age, gender, race, education, household income, marital status, depressive symptomatology (CESD), ejection fraction, invasive cardiac procedures.

ISSN: 1472-6963