Table 3.

Inhaled Corticosteroids (ICS) and the Risk of Herpes Zoster Among Cases and Controls Treated with Inhibitors of Cytochrome Oxidase P450 3A4*

	Cases (n = 475)	Controls (n = 760)	Crude Odds Ratio	Adjusted Odds Ratio† (95% CI ‡)
ICS
no use%	35.6	36.1	1.0	reference
high dose%	24.4	20.8	1.13	1.24 (0.81-1.90)
medium dose%	16.8	18.2	0.95	0.94 (0.63-1.41)
low dose%	2.5	3.3	0.75	0.66 (0.29-1.48)

*see list of inhibitors of cytochrome P450 3A4 in methods.

†Adjusted for gender, smoking status, all the variables in Table 1, as well as past use of ICS.

‡CI: confidence interval