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. 2010 Aug 31;5:14. doi: 10.1186/1750-9378-5-14

Table 2.

Factors affecting the odds ratios (OR) for KSHV and HIV in pregnant women attending antenatal public clinics in Gauteng province of South Africa.

KSHV Seropositivity HIV Seropositivity



Total (n) Prevalence
Total n(%)
Unadjusted OR# (95%CI) Adjusted OR (95%CI) Prevalence
Total n(%)
Unadjusted OR (95%CI) Adjusted OR# (95%CI)



All Subjects 1740 776(44.6%) - - 402(23.1%) - -
Age Group
 ≤ 20 362 154 (42.4) 1 1 87(24.0%) 1 1
 21 - 25 533 246 (46.2) 1.2 (0.9 - 1.5) 1.2 (0.9 - 1.7) 136(25.5%) 1.1 (0.8 - 1.5) 1.1 (0.7 - 1.5)
 26 - 30 438 192 (43.8) 1.1 (0.8 - 1.4) 1.1 (0.8 - 1.5) 108(24.7%) 1.0 (0.7 - 1.5) 1.0 (0.7 - 1.5)
 ≥ 31 407 184 (45.2) 1.1 (0.8 - 1.5) 1.2 (0.9 - 1.6) 71(17.4%) 0.7 (0.4 - 0.9)* 0.7 (0.5 - 1.0)*
P3df 0.6240 0.4830 0.0286 0.0373
Municipality Region
 Soweto 293 105(35.4) 1 1 72(24.6%) 1 1
 Ekurhuleni 567 274 (48.3) 1.6 (1.3 - 2.2)* 1.8 (1.3 - 2.4) * 147(25.9%) 1.0 (0.7 - 1.5) 1.1 (0.7 - 1.6)
 Emfuleni 330 152 (46.1) 1.5 (1.1 - 2.1) * 1.8 (1.1 - 2.6) * 63(19.1%) 0.8 (0.5 - 1.1) 0.7 (0.5 - 1.1)
 Tshwane 207 77 (37.2) 1.1 (0.7 - 1.5) 1.3 (0.5 - 1.9) 29(14.0%) 0.5 (0.3 - 0.8)* 0.5 (0.3 - 0.8)*
 West Rand 343 168 (49.0) 1.7 (1.2 - 2.4) * 1.7 (1.1 - 2.5) * 91(22.6%) 1.1 (0.8 - 1.6) 1.1 (0.7 - 1.7)
P4df 0.0015 0.0095 0.0017 0.0013
Education Level
 < 2 years 117 62 (53.0) 1 1 17(14.5%) 1 1
 2- 5 years 513 253 (49.3) 0.9 (0.6 - 1.3) 0.7 (0.5 - 1.1) 119(23.2%) 1.3 (0.8 - 2.1) 1.4 (0.8 - 2.6)
 6 - 12 years 119 51 (42.9) 0.7 (0.4 - 1.1) 0.5 (0.3 - 0.8)* 31(26.0%) 1.6 (0.8 - 3.1) 1.4 (0.7 - 2.8)
 Post Matric 959 400 (41.7) 0.6(0.4 - 0.9)* 0.5 (0.4 - 0.8)* 228(23.8%) 1.4 (0.9 - 2.1) 1.6 (0.9 - 2.8)
P3df 0.0080 0.0034 0.1645 0.3437
Gravidity Group
 1 631 269 (42.6) 1 - 144(22.8%) 1 -
 2 481 223 (46.4) 1.2 (0.9 - 1.5) - 129(26.8%) 1.2 (1.0 - 1.6)* -
 ≥2 532 246 (46.2) 1.2 (0.9 - 1.5) - 106(28.0%) 0.8 (0.6 - 1.1) -
P2df 0.2863 0.0284
Parity group
 0 649 279 (43.0) 1 - 149(23.0%) 1 -
 1 487 223(45.8) 1.1 (0.9 - 1.5) - 129(26.5%) 1.2 (0.9 - 1.6) -
 > 2 506 235(46.4) 1.2 (0.9 - 1.5) - 56(20.1%) 0.9 (0.6 - 1.1) -
P2df 0.3594 0.0263
River Catchment
 North 279 109 (39.1) 1 - 48(17.2%) 1 -
 South 1461 667 (45.6) 0.8 (0.4 - 1.5) - 354(24.2%) 0.6 (0.4 - 0.9)* -
P1df 0.4312 0.0075
Syphilis
 Non-reactive 1440 621 (43.1) 1 1 303(21.0%) 1 1
 Reactive 298 154 (51.7) 1.4 (1.1 - 1.8)* 1.2 (0.9 - 1.6) 97(32.5%) 1.8 (1.4 - 2.4)* 1.9 (1.4 - 2.5)*
P1df 0.0028 0.1168 < 0.0001 < 0.0001
HIV infection
 Negative 1338 496 (37.1) 1 1 - -
 Positive 402 280 (69.7) 3.9 (3.1 - 5.0)* 4.1 (3.1 - 5.2)* - -
P1df < 0.0001 < 0.0001

# Adjusted for age group, education levels, municipal region, syphilis seropositivity and/or HIV status. *Statistically significant Odds Ratios.