Table 2

Syphilis prevalence among 692* antenatal care attendees in Gaborone, Botswana

New attendees n (%)

Repeat attendees n (%)

All attendees n (%)


RPR positive cases

RPR titre ≥8, TPHA positive (HTS)

2

(1)

9

(2)

11

(2)

RPR titre <8, TPHA positive (LTS)

4

(3)

17

(3)

21

(3)

Biologically false positive†

2

(1)

12

(2)

14

(2)

RPR negative cases

Past or treated syphilis‡

11

(7)

31

(6)

42

(6)

Uninfected

138

(88)

466

(87)

604

(87)


Total

157

(100)

535

(100)

692

(100)


RPR, rapid plasma reagin; TPHA, Treponema pallidum haemagglutination assay; HTS, high-titre syphilis; LTS, low-titre syphilis

*Among 546 repeat attendees, 11 were excluded from this analysis because the TPHA was missing.

† TPHA-negative

‡ TPHA-positive

Romoren and Rahman BMC International Health and Human Rights 2006 6:8   doi:10.1186/1472-698X-6-8

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