Table 4. Adjusted hospital specific risks^a.

	Patients with at least one indicator code for infection	Hospital B vs. A	Hospital C vs. A	Hospital D vs. A	Other hospitals vs. A	p value
Including pharmacy data	536/1,953	0.68 (0.49–0.94)b	1.03 (0.68–1.55)	1.57 (1.16–2.13)	0.91 (0.67–1.24)	<0.0001
Excluding pharmacy data	363/1,953	0.84 (0.58–1.20)	0.92 (0.56–1.50)	1.62 (1.15–2.28)	1.05 (0.74–1.50)	0.03

^aAdjusted for health plan, age, and sex. The interaction between health plan and hospital was not significant in any of these models. Similar results were obtained in models adjusting for chronic disease score (a composite of age, sex, and pharmacy information), instead of age and sex.
^bAdjusted odds ratios and (95% confidence intervals).