Table 3.

Proportional hazards analysis of first adverse events by deficit accumulation index (DAI),^* N=1851

Any adverse event (repeat outpatient ED visit, hospital admission, nursing home admission or death)
	Model 1*		Model 2&		Model 3$
	Unadjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value
DAI quartile 1 (lowest)	reference		reference		reference
DAI quartile 2	1.23 (0.93, 1.64)	.15	1.22 (0.92, 1.62)	.17	1.20 (0.91,1.60)	.19
DAI quartile 3	1.43 (1.10, 1.87)	.008	1.40 (1.07, 1.83)	.014	1.33 (1.02, 1.77)	.036
DAI quartile 4	1.76 (1.31, 2.36)	<.0001	1.66 (1.21, 2.27)	.002	1.44 (1.06, 1.96)	.019
Repeat outpatient ED visit
	Model 1*		Model 2&		Model 3$
	Unadjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value
DAI quartile 1 (lowest)	reference		reference		reference
DAI quartile 2	.97 (.65, 1.49)	.87	.95 (.63, 1.40)	.78	.93 (.62, 1.39)	.73
DAI quartile 3	1.16 (.81, 1.63)	.41	1.13 (.76, 1.68)	.52	1.10 (.74, 1.64)	.63
DAI quartile 4	1.31 (.91, 1.85)	.14	1.21 (.84, 1.74)	.31	1.06 (.73, 1.54)	.76
Hospitalization, nursing home admission or death
	Model 1*		Model 2&		Model 3$
	Unadjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value	Adjusted HR (95% CI)	P-value
DAI quartile 1 (lowest)	reference		reference		reference
DAI quartile 2	1.45 (.97, 2.16)	.07	1.47 (.99, 2.18)	.057	1.45 (.98, 2.16)	.066
DAI quartile 3	1.66 (1.11, 2.48)	.013	1.66 (1.11, 2.49)	.013	1.55 (1.04, 2.33)	.033
DAI quartile 4	2.42 (1.63, 3.59)	<.0001	2.35 (1.52, 3.61)	<.0001	1.98 (1.29, 3.05)	.002

^*Model 1 - unadjusted

^&Model 2 - adjusted for age, sex, race, income, living alone, insurance status

^$Model 3 - adjusted for age, sex, race, income, living alone, insurance status, previous ED visits, previous hospitalizations

DAI=Deficit Accumulation Index

The quartile cutpoints for the DAI scores (expressed as a proportion: deficits present/possible deficits) were: 0.14, 0.23, and 0.36.