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Table 1 Demographic characteristics of ST FSWs and LT FSWs

From: Migrant female sex workers working at the Sino-Vietnamese border for a short time have a higher risk of HIV transmission: a consecutive cross-sectional study

VariablesTotal (N = 1667, %)ST FSWs (N = 586, %)LT FSWs (N = 1081, %)Χ2/tP value
Current age (years)12.7a< 0.001
 Median (IQR)1667 (100%)30 (24, 38)39 (31, 45)  
Marital status78.115< 0.001
 Unmarried/divorced/widowed456 (27.4)199 (34.0)257 (24.0)  
 Married/Cohabiting1211 (72.6)387 (66.0)824 (76.0)  
Nationality151.545< 0.001
 Chinese1021 (61.3)242 (41.30)779 (72.1)  
 Vietnamese646 (38.7)344 (58.70)302 (27.9)  
Years of education116.562< 0.001
 ≤ 91494 (89.6)461 (78.7)1033 (95.6)  
 > 9173 (10.4)125 (21.3)48 (4.4)  
Types of working venues124.326< 0.001
 Low-level974 (58.4)236 (40.2)738 (68.3)  
 Medium-level626 (37.6)321 (54.8)305 (28.2)  
 High-level67 (4.0)29 (5.0)38 (3.5)  
Total duration of sex work (months)
 Median (IQR)1667 (100%)16 (4, 37)48 (24, 72)14.173a< 0.001
The level of HIV-related knowledge20.246< 0.001
 High-level1558 (93.5)526 (89.8)1032 (95.5)  
 Low-level109 (6.5)60 (10.2)49 (4.5)  
Age when they first engaged in commercial sex work (years)31.830< 0.001
 < 1842 (2.5)32 (5.5)10 (0.9)  
 ≥ 181625 (97.5)554 (94.5)1071 (99.1)  
Average charge per sex transaction (RMB)0.9840.325
 Median (IQR)1667 (100%)100 (80, 100)100 (80, 120)  
HIV status0.0140.905
 HIV-seronegative1645 (98.7)578 (98.6)1067 (98.7)  
 HIV-seropositive22 (1.3)8 (1.4)14 (1.3)  
  1. aRefers to corrected t test