Table 2

Effect of B27 status on subjective severity of symptoms attributed to COVID-19*.

HLA-B27-negative, n (%)HLA-B27-positive, n (%)
1 (extremely mild symptoms)0 (0.0)1 (3.2)
21 (10.0)1 (3.2)
32 (20.0)3 (9.7)
42 (20.0)2 (6.5)
51 (10.0)6 (19.4)
61 (10.0)5 (16.1)
71 (10.0)6 (19.4)
82 (20.0)4 (12.9)
90 (0.0)2 (6.5)
10 (life-threatening symptoms)0 (0.0)1 (3.2)
  • *COVID-19 diagnosis not always confirmed. Values are n (%) with either confirmed or unconfirmed COVID-19 infection and their subjective score for the severity of the COVID-19 infection. The difference between HLA-B27-negative and HLA-B27-positive is not statistically significant based on the Pearson chi-square test with simulated P value (based on 2000 replicates; P = 0.867). COVID-19: coronavirus disease 2019.