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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Sex Transm Dis. 2017 Jan;44(1):6–10. doi: 10.1097/OLQ.0000000000000541

Table 1.

Proportion of patients with seroreversion (negative RPR) after a ≥ 4-fold decline in nontreponemal antibody titers following syphilis treatment, according to stage of infection and time after therapy.

Stage of syphilis 3 months 6 months 9 months 12 months
Primary (n=86) 9 (10.5%) 20 (34.9%) 30 (34.9%) 32 (37.2%)
Secondary (n=170) 1 (0.6%) 7 (4.1%) 10 (5.9%) 17 (10.0%)
Early latent (n=77) 5 (6.5%) 5 (6.5%) 8 (10.4%) 8 (10.4%)
Total early syphilis (N=333) 15 (4.5%) 32 (9.6%) 48 (14.4%) 57 (17.1%)