. Author manuscript; available in PMC: 2014 Mar 13.

Published in final edited form as: Am J Manag Care. 2013 Apr 1;19(4):e114–e124.

Table 4.

Relationship Between Change in Clinical Status and Initial Use of Shared Electonic Medical Record in the Subsequent 3 Months.

Changes	Unadjusted HR of shared medical record Use^a	P	Adjusted HR of shared medical record Use^a	P
Change to higher Charlson Comorbidity Score (excluding HIV)^b	1.29	0.01	1.49	0.0001
New to ART (1^st time)	1.69	0.0001	1.65	0.0001
CD4+ count <200 cells per microliter	1.33	0.02	1.34	0.02
HIV RNA ≥75 copies per milliliter	1.69	0.0001	1.63	0.0001

ART indicates receipt of 1 or more antiretroviral medications; HR, hazard ratio.

Rate ratio/HR compares rates of initial use (number of initial users per day) relative to reference group (from Cox proportional hazards analysis stratified on site). Adjusted for age, sex, and non-HIV-related morbidity and, stratified on site. All variables in table were time-varying and updated monthly.

Change to higher level of monthly non-AIDS Charlson Comorbidity Index score.