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. Author manuscript; available in PMC: 2009 Sep 24.
Published in final edited form as: Arthritis Rheum. 2009 Apr;60(4):1179–1186. doi: 10.1002/art.24418

Table 3.

Prevalence of treatment-resistant Lyme arthritis HLA–DRB1 alleles and odds ratio between cases and each of the 3 control groups*

Cases
(n = 27)		 Arthritis controls
(n = 54)		 Vaccine controls
(n = 54)		 Normal controls
(n = 54)
1 or 2 TRLA alleles
    Prevalence, no. (%) 15 (56) 31 (57) 28 (52) 29 (54)
    Odds ratio (95% CI) – 0.8 (0.3–2.1) 1.6 (0.5–4.4) 1.75 (0.6–5.3)
2 TRLA alleles
    Prevalence, no. (%) 4 (15) 3 (5.6) 3 (5.6) 4 (7.4)
    Odds ratio (95% CI) – 3.5 (0.6–21.5) 2.7 (0.6–11.9) 2.3 (0.5–11.6)
*

Treatment-resistant Lyme arthritis (TRLA) alleles are *0101, *0102, *0401, and *0404. 95% CI = 95% confidence interval.