. 2009 Oct 31;25(1):10–17. doi: 10.1007/s11606-009-1134-2

Table 4.

Efforts to Contain Prescription Spending by Coverage Source, 2003–2006

	Cost-related non-adherence (%)				Didn’t fill Rx 1+ times (%)				Skipping doses of Rx to make Rx last longer (%)				Taking smaller doses of Rx to make Rx last longer (%)
	2003	2006	Unadj Chg	Adj OR^a	2003	2006	Unadj Chg	Adj OR^a	2003	2006	Unadj Chg	Adj OR^a	2003	2006	Unadj Chg	Adj OR^a
Total (n = 9573)	26.0	19.4	−6.6^***	0.6^***	17.9	11.0	−6.9^***	0.5^***	15.2	11.1	−4.1^***	0.7^***	12.0	9.9	−2.1^**	0.8^**
Current Part D (2006), Previous Rx Coverage was:
None (n = 1619)	39.8	23.2	−16.6^***	0.4^***	29.2	13.7	−15.5^***	0.3^***	25.4	13.3	−12.1^***	0.4^***	18.3	12.1	−6.2^***	0.6^***
Medicaid (n = 1125)	29.3	25.5	−3.8	0.9	14.4	13.5	−0.9	0.9	20.8	13.0	−7.8^*	0.6^*	14.4	12.6	−1.8	0.8
HMO (n = 712)	41.0	27.5	−13.5^***	0.4^***	29.9	17.5	−12.4^***	0.4^***	22.0	12.9	−9.1^**	0.4^**	15.6	12.6	−3.0	0.7
Medigap/ Private (n = 827)	31.3	22.8	−8.5^**	0.6^**	22.3	14.0	−8.3^**	0.5^**	18.3	13.2	−5.1^*	0.6^*	13.4	10.9	−2.5	0.7
Employer (n = 649)	17.4	25.0	7.6^**	1.7^**	12.3	14.7	2.4	1.2	10.0	15.2	5.2^*	1.7^*	9.7	12.1	2.4	1.3
Other Rx coverage 2003–2006
Employer (n = 1882)	13.1	9.8	−3.3^*	0.7^*	6.9	5.4	−1.5	0.8	6.9	5.4	−1.5	0.8	5.8	5.0	−0.8	0.8
VA (n = 150)	22.5	11.8	−10.7	0.5	16.9	7.0	−9.9	0.4	8.7	8.6	−0.1	1.1	14.5	4.8	−9.7	0.3
No Rx coverage, 2003–2006
None (n = 476)	30.2	24.4	−5.8	0.7	22.8	18.7	−4.1	0.7	18.9	12.0	−6.9	0.5	12.2	11.6	−0.6	0.9

^*p ≤ 0.05 ^**p ≤ 0.01 ^***p ≤ 0.001

^aAdjusted odds ratio. Results are adjusted for the following: Age in 2003, race, poverty status in 2003, change in poverty status, number of Rx medicines in 2003, change in number of Rx medicines, acquisition of specific chronic condition, change in Rx coverage