Herpes zoster is associated with an increased risk of subsequent lymphoid malignancies - A nationwide population-based matched-control study in Taiwan

Table 3 Adjusted hazard ratios for lymphoid malignancy and all malignancies (excluding lymphoid malignancy)

Variable		Adjusted HR^a for lymphoid malignancy (95% CI)	P value	Adjusted HR^a for all malignancies (95% CI)	P value
Herpes zoster
	No	Reference		Reference
	Yes	1.68 (1.35-2.42)	0.0026	1.00 (0.91-1.05)	0.872
Charlson comorbidity index^b
	No	Reference		Reference
	Yes	2.33 (1.66-3.27)	<0.0001	2.92 (2.75-3.11)	<0.0001
Income category (monthly)
	≤ USD 800	Reference		Reference
	> USD 800	0.58 (0.36-0.93)	0.023	0.63 (0.58-0.68)	<0.0001

^aHR: Hazard ratio. Adjusted by Charlson comorbidity index, time-dependent covariate for herpes zoster group, and income category.
^bPresence of any comorbidities listed in Charlson comorbidity index.

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