Table 4

Multivariate logistic regression of relationship between risk factors and syphilis status of female sex workers recruited via time location sampling in Mongolia (n=761)

CharacteristicsUnweighted OR
(95% CI)
p ValueWeighted OR
(95% CI)
p Value
Age
 ≤30 years1.05 (0.99 to 1.11)0.0651.09 (1.03 to 1.16)0.003
 >30 years0.96 (0.92 to 0.99)0.0440.93 (0.89 to 0.98)0.005
City or Province
 Ulaanbaatar1.001.0
 Darkhan1.39 (0.78 to 2.48)0.2671.36 (0.68 to 2.73)0.381
 Dornod1.11 (0.61 to 2.0)0.7350.82 (0.42 to 1.61)0.571
 Khuvsgul0.56 (0.30 to 1.04)0.0660.39 (0.19 to 0.81)0.011
 Orkhon0.70 (0.38 to 1.30)0.2610.74 (0.38 to 1.43)0.365
Education
 None/primary1.01.0
 Incomplete secondary0.63 (0.33 to 1.20)0.1590.39 (0.19 to 0.80)0.010
 Complete secondary0.48 (0.25 to 0.91)0.0240.39 (0.20 to 0.79)0.009
 College/vocational schools/university0.61 (0.27 to 1.34)0.2170.38 (0.16 to 0.90)0.028
Number of clients last week
 ≤31.01.0
 ≥41.36 (0.94 to 1.96)0.1041.33 (0.87 to 2.03)0.191
Always used condoms over the past 12 months0.85 (0.56 to 1.28)0.4320.97 (0.60 to 1.56)0.899
Used condom during the last sex with client0.81 (0.49 to 1.36)0.4250.65 (0.37 to 1.13)0.128
Alcohol use
 Rarely or never1.01.0
 Once a month1.57 (0.94 to 2.62)0.0871.72 (0.96 to 3.08)0.071
 Once a week1.41 (0.86 to 2.33)0.1731.33 (0.76 to 2.32)0.324
Blue collar worker client1.48 (0.99 to 2.20)0.0521.73 (1.09 to 2.76)0.021
Genital discharge past 12 months1.08 (0.72 to 1.63)0.7021.13 (0.71 to 1.80)0.601
Genital ulcer past 12 months2.24 (1.17 to 4.28)0.0152.23 (1.10 to 4.53)0.026