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. 2023 Mar 21;37(15):3271–3281. doi: 10.1038/s41433-023-02504-0

Table 2.

Participant demographics.

Variable All (n = 364) HIV− (n = 198) HIV+ (n = 166) P Value
Mean age in years (95% CI) 44.9 (43.6–46.2) 48.6 (46.9–50.3) 40.5 (38.7–42.2) <0.001
Male sex 295/363 (81.3%) 139/197 (70.6%) 156/166 (94.0%) <0.001
MSMa 68/143 (47.6%) 15/72 (20.8%) 53/71 (74.6%) <0.001
Median RPRb 1:64 1:64 1:256 <0.001
CSFc reactive for syphilis 67/138 (48.6%) 25/57 (43.9%) 42/81 (51.9%) 0.355
Mean time to presentation in days (95% CI) 123 (80–167) 200 (110–290) 63 (37–89) <0.001
Mean time to follow up in days (95% CI) 281 (227–335) 336 (258–413) 206 (137–276) <0.001
Cases with delayed diagnosis 31/101 (30.7%) 21/59 (35.6%) 10/42 (23.8%) 0.206
Bilateral disease 213/362 (58.8%) 108/197 (54.8%) 105/165 (63.6%) 0.090

aMSM men who have sex with men.

bRPR rapid plasma reagin.

cCSF cerebrospinal fluid.