Characteristics | sex | OR [95% CI] | p-value | |
Antibody titer group positive | Male n (%) | Female n (%) | ||
1:160 or less | 117 (47.95) | 127 (52.05) | 1.89 [1.12 to 3.6] | 0.26 |
1:320 to 1:640 | 113 (50.67) | 110 (49.33) | 0.78 [0.33 to 1.53] | 0.36 |
1:1280 to 1:2560 | 39 (37.86) | 64 (62.14) | 2.19 [0.94 to 5.1] | 0.09 |