Table 3. Associations of low income with medical services utilization by gender.

	Men				Women
	Unadjusted		Adjusteda		Unadjusted		Adjusteda
	IRR (95% CI)	P value	IRR (95% CI)	P value	IRR (95% CI)	P value	IRR (95% CI)	P value
Physician visits	0.87 (0.85–0.90)	<0.001	0.90 (0.87–0.92)	<0.001	0.91 (0.89–0.93)	<0.001	0.97 (0.95–0.99)	0.001
Length of hospital stay	1.86 (1.43–2.43)	<0.001	1.98 (1.54–2.56)	<0.001	1.48 (1.25–1.75)	<0.001	1.42 (1.20–1.67)	<0.001
– Users onlyb	1.71 (1.46–2.00)	<0.001	1.72 (1.48–2.00)	<0.001	1.21 (1.10–1.34)	<0.001	1.20 (1.09–1.32)	<0.001

CI, confidence interval; IRR, incidence rate ratio.

Negative binomial regression was used. IRRs were derived from exp(coefficient).

^aAdjusted by 5-year age-group and LTC needs level.

^bParticipants who had at least one claim submitted for inpatient services, excluding some surgical procedures with episode-based bundled payment, during the 12-month study period.