Table 2.

Crude and adjusted rate ratios of skin or soft tissue complication associated with current use (3–30 days before the index date) of NSAIDs and paracetamol among varicella or zoster patients (reference no current use)

Variables	Cases	Matched controls	Crude RR	Adjusted RR* (95% CI)
Primary varicella
Number of subjects	386	2402
Current use of:
NSAIDs %	12 (3.11)	14 (0.58)	5.2	4.9 (2.1, 11.4)
Paracetamol %	51 (13.21)	246 (10.24)	1.7	1.5 (1.0, 2.2)
Zoster disease
Number of subjects	681	2142
Current use of:
NSAIDs %	57 (8.37)	113 (5.28)	1.6	1.6 (1.1, 2.4)
Paracetamol %	146 (21.44)	537 (25.07)	0.8	0.8 (0.6, 1.0)

RR, rate ratio.

^*Adjusted for all variables inTable 1.