Table 5 .

Comparison of manual and automated RPR test after initial syphilis treatment

Case No	Age	Gender	Manual RPR	Automated RPR (RU)	TPPA	Pretreatment VDRL test value	Time after initial treatment (days)	Initial treatment	Diagnosis
1	54	Male	2+	0	1:5120	1:8 reactive	939	Penicillin G benzathine 1.2×106 IU	Syphilis, latent
2	66	Male	0.5+	0	1:640	1:1 weakly reactive	903	Penicillin G benzathine 1.2×106 IU	Treated syphilis
3	17	Male	2+	0	1:5120	1:4 reactive	222	Penicillin G benzathine 1.2×106 IU	Syphilis, late, latent
4	62	Male	2+	0	1:640	1:1 reactive	296	Penicillin G benzathine 1.2×106 IU	Syphilis, other and unspecified
5	68	Male	1+	0	1:320	1:1 weakly reactive	644	Penicillin G benzathine 1.2×106 IU	Syphilis, late, latent
6	72	Male	1+	0	1:640	1:1 weakly reactive	28	Penicillin G benzathine 1.2×106 IU	Syphilis, late, unspecified
7	55	Female	0	0	1:1280	N/A	0	Penicillin G benzathine 1.2×106 IU	Syphilis, latent
8	56	Female	1+	0	1:5120	1:1 weakly reactive	7	Penicillin G benzathine 1.2×106 IU	Syphilis, latent
9	65	Female	2+	0	1:80	1:1 reactive	0	Penicillin G benzathine 1.2×106 IU	Syphilis, late
10	33	Female	1+	0	1:5120	1:8 reactive	936	Penicillin G benzathine 1.2×106 IU	Syphilis, other and unspecified
11	28	Female	2+	1	1:2560	1:1 reactive	1097	Penicillin G benzathine 1.2×106 IU	Syphilis, late, latent
12	2	Male	2+	1.1	1:5120	1:32 reactive	539	Penicillin G benzathine 1.2×106 IU	Syphilis, congenital, latent
13	65	Male	3+	1.3	1:640	1:1 reactive	273	Penicillin G Benzathine 1.2×106 IU	Treated syphilis
14	70	Male	3+	2.3	1:1280	1:1 reactive	188	Doxycycline 100 mg	Syphilis, late, latent
15	48	Female	2+	2.5	1:5120	1:1 weakly reactive	665	Penicillin G benzathine 1.2×106 IU	Treated syphilis
16	36	Female	2+	3.8	1:5120	1:2 reactive	810	Penicillin G benzathine 1.2×106 IU	Syphilis, latent
17	74	Female	4+	7.7	1:320	1:4 reactive	669	Penicillin G benzathine 1.2×106 IU	Syphilis, late, latent
18	25	Female	4+	8.1	1:5120	1:8 reactive	172	Penicillin G benzathine 1.2×106 IU	Syphilis with pregnancy
19	64	Female	4+	14.1	1:5120	1:8 reactive	0	Penicillin G benzathine 1.2×106 IU	Chronic rhinitis
20	30	Male	4+	20	1:2560	1:16 reactive	7	Penicillin G benzathine 1.2×106 IU	Syphilis, late, unspecified
21	31	Female	2+	20	1:5120	1:16 reactive	3	Penicillin G benzathine 1.2×106 IU	Syphilis with pregnancy
22	51	Female	4+	20.4	1:5120	1:8 reactive	417	Penicillin G benzathine 1.2×106 IU	Syphilis, latent
23	37	Female	2+	25.6	1:5120	1:16 reactive	0	Penicillin G benzathine 1.2×106 IU	Treated syphilis

N/A, not applicable; RPR, rapid plasma reagin; RU, RPR unit; TPPA, Treponema pallidum particle agglutination; VDRL, Venereal Disease Research Laboratory.