Table 1.

Characteristics of Elderly Beneficiaries with Depression Who Entered the Coverage Gap But Did not Go Through it in 2007 after the Propensity Score Weighting^*

Variable	No-Coverage vs LIS			Generic-Only vs LIS
	No Coverage (n=7650)	LIS (n=11537)	P value	Generic Only (n=2989)	LIS (n=11537)	P value
Female sex, %	78.6	78.4	0.57	79.7	79.7	1.00
Race, %
Non-Hispanic White	82.1	82.4	0.43	78.9	78.5	0.32
African American	6.7	6.6	0.48	7.6	8.0	0.17
Hispanic	8.0	8.3	0.43	10.2	10.2	0.94
Asian	1.7	1.7	0.78	1.9	2.1	0.26
Age, %
65–74	35.8	36.6	0.12	37.8	37.7	0.82
75–84	37.6	37.5	0.88	35.2	35.9	0.19
≥ 85	26.6	25.9	0.12	27.0	26.4	0.24
Prescription drug risk score, mean	1.09±0	1.1±0	0.17	1.1±0.01	1.1±0	0.99
CMS-HCC risk, mean	1.49±0.01	1.51±0.01	0.22	1.5±0.02	1.51±0.01	0.67
No. Elixhauser comobidities, mean	4.49±0.03	4.56±0.03	0.08	4.58±0.05	4.62±0.03	0.53
Time spent in the gap, mean	114.8±0.73	128.3±0.61	<.001	136.5±1.25	128.6±0.61	<.001
25th percentile	61	77		80	79
Median	115	132		140	132
75th percentile	165	178		192	178
Diagnosed chronic conditions, %
Hypertension	60.7	61.6	0.06	59.8	61.9	<.001
Hyperlipidemia	35.8	27.6	<.001	34.0	27.7	<.001
AMI	2.0	1.7	0.05	1.2	1.8	<.001
COPD	20.7	24.6	<.001	20.3	24.8	<.001
Heart failure	32.2	36.6	<.001	32.9	37.6	<.001
Diabetes	31.2	39.3	<.001	36.8	40.2	<.001
RA/OA	38.3	41.5	<.001	37.7	42.1	<.001

^*Plus-minus values are means±SE.

Abbreviations: LIS = low-income-subsidies; AMI = Acute Myocardial Infarction; COPD = Chronic obstructive pulmonary disease; RA/OA = Rheumatoid arthritis/osteoarthritis.

All numbers in the table are adjusted using inverse propensity score weights. Propensity scores were calculated using logistic regression models that predict the probability of being in a study group relative to the comparison group, controlling for age, sex, race, number of Elixhauser comorbidities, and prescription drug hierarchical condition.