Table 3.

Frequencies of HLA alleles in patients with LEV-SCARs and LEV-tolerant controls

HLA genotype	Carrier, No. (%)		P	Odd ratio (95% CI)
	LEV-SCAR patients, (n = 12)	Tolerant controls, (n = 100)
B∗13:01	4 (33.3)	10 (10.0)	0.043	4.5 (1.15–17.65)
B∗13:02	6 (50.0)	14 (14.0)	7.21 × 10−3	6.14 (1.73–21.76)
Serotype B13	10 (83.3)	22 (22.0)	4.85 × 10−5	17.73 (3.61–86.95)

Abbreviations: CI, confidence interval; LEV, levofloxacin; LEV-SCARs, levofloxacin-induced severe cutaneous adverse drug reactions; OR, odds ratio.