Table 2

Multiple logistic regression analyses of correlates of KSHV and HSV-2 infection among female sex workers (n = 600)
KSHV seroprevalence (%) AOR (95%CI) P value HSV2 seroprevalence (%) AOR (95%CI) P value
Ethnicity
 Han 56/568 (9.9) 1.00 297/568 (52.3) 1.00
 Others 4/32 (12.5) 1.42 (0.46-4.37) 0.547 16/32 (50.0) 0.89 (0.42-1.89) 0.760
Age (years)
 18-25 33/336 (9.8) 1.00 156/336 (46.4) 1.00
 26-35 21/196 (10.7) 1.09 (0.46-2.56) 0.846 116/196 (59.2) 1.69 (0.77-3.70) 0.185
 >35 6/68 (8.8) 0.67 (0.18-2.43) 0.540 41/68 (60.3) 1.44 (0.76-2.72) 0.258
Marital status
 Single 27/261 (10.3) 1.00 112/261 (42.9) 1.00
 Ever married 33/339 (9.7) 0.80 (0.39-1.64) 0.539 201/339 (59.3) 1.59 (1.04-2.45) 0.033
Education
 Primary school or illiterate 13/113 (11.5) 1.00 63/113 (55.8) 1.00
 Middle school 32/335 (9.0) 0.75 (0.36-1.58) 0.457 188/335 (53.0) 0.98 (0.65-1.52) 0.583
 High school or higher 15/132 (11.4) 1.01 (0.42-2.49) 0.963 62/132 (47.0) 0.85 (0.48-1.48) 0.960
Monthly income (Yuan RMB)
 ≤2000 14/101 (13.9) 1.00 64/101 (63.4) 1.00
 2001-4000 33/389 (8.5) 0.48 (0.23-0.97) 0.043 195/389 (50.1) 0.78 (0.43-1.45) 0.448
 >4000 13/110 (11.8) 0.81 (0.33-1.97) 0.634 54/110 (49.1) 0.62 (0.37-1.02) 0.060
Age at first sex (years)
 <18 19/185 (10.3) 1.00 89/185 (48.1) 1.00
 ≥18 41/415 (9.9) 0.89 (0.46-1.69) 0.716 224/415 (54.0) 0.96 (0.64-1.42) 0.822
Years of prostitution
 1-3 24/273 (8.8) 1.00 122/273 (44.7) 1.00
 4-5 19/160 (11.9) 1.55 (0.78-3.09) 0.211 82/160 (51.2) 1.22 (0.79-1.86) 0.373
 >5 17/167 (10.2) 1.41 (0.56-3.59) 0.468 109/167 (65.3) 2.06 (1.16-3.68) 0.014
Number of sex partners in the past 12 months
 ≤10 19/212 (9.0) 1.00 105/212 (49.5) 1.00
 11-20 17/185 (9.2) 1.05 (0.52-2.16) 0.885 92/185 (49.7) 0.97 (0.64-1.48) 0.908
 21-50 10/92 (10.9) 1.37 (0.57-3.27) 0.480 51/92 (55.4) 1.01 (0.59-1.72) 0.970
 >50 14/111 (12.6) 1.67 (0.72-3.87) 0.234 65/111 (58.6) 1.05 (0.61-1.80) 0.856
Condom use in the past 12 months
 Consistently 28/296 (9.5) 1.00 142/296 (48.0)
 Occasionally 31/285 (10.9) 1.06 (0.58-0.92) 0.834 162/285 (56.8) 1.34 (0.93-1.93) 0.113
 Never 1/19 (5.3) 0.52 (0.06-4.14) 0.530 9/19 (47.4) 0.69 (0.26-1.86) 0.463
HBsAg
 Negative 52/526 (9.9) 1.00 273/526 (51.9) 1.00
 Positive 8/74 (10.8) 1.26 (0.56-2.87) 0.574 40/74 (54.1) 1.12 (0.67-1.88) 0.664
Syphilis
 Negative 56/537 (10.4) 1.00 266/537 (49.5) 1.00
 Positive 4/63 (6.3) 0.51 (0.18-1.51) 0.221 47/63 (74.6) 2.65 (1.43-4.93) 0.002
KSHV
 Negative --- --- --- 278/540 (51.5) 1.00
 Positive --- --- --- 35/60 (58.3) 1.29 (0.74-2.27) 0.367
HSV2
 Negative 25/287 (8.7) 1.00 -- --- ---
 Positive 35/313 (11.2) 1.32 (0.75-2.32) 0.334 --- --- ---

Note: OR = odds ratio, CI = confidence interval, which were adjusted for other variables listed in this table by a multiple logistic regression analysis.

Zhang et al.

Zhang et al. BMC Infectious Diseases 2014 14:58   doi:10.1186/1471-2334-14-58

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