Table 4

Predictors of sexual risk behaviour defined as presence of any sexually transmitted infection at screening, inconsistent condom use in the past month and no condom used during last sex act among 201 adolescent female sex workers

VariableRisk factor% (n/N)Crude OR (95% CI)p ValueAdjusted OR (95% CI)p Value
Any STIAge
 19 years28.0 (27/97)1.00.56
 15–18 years33.0 (34/104)1.26 (0.69 to 2.31)
Workplace characteristics
 Lower risk22.9 (24/105)1.00.016
 Higher risk38.5 (37/96)2.12 (1.13 to 3.95)
Sex work as main source of income
 No56.0 (10/18)1.00.016
 Yes28.0 (51/182)0.31 (0.11 to 0.85)
Amount received from last client
 US$4–7537.0 (34/92)1.00.051
 US$76–15020.8 (10/48)0.45 (0.20 to 1.03)
 >US$15019.4 (6/31)0.41 (0.15 to 1.12)0.07
Received free condoms (past year)
 Yes25.2 (39/155)1.00.0031.00.028
 No47.8 (22/46)2.72 (1.35 to 5.47)2.51 (1.11 to 5.70)
Inconsistent or no condom use in past month with any sexual partnersAge
 19 years75.3 (73/97)1.00.66
 15–18 years77.9 (81/104)1.16 (0.60 to 2.26)
Education level
 High school71.9 (46/64)1.01.0
 Middle school73.0 (57/78)1.00 (0.47 to 2.13)0.990.90 (0.41 to 1.99)0.79
 Illiterate or primary school86.4 (51/59)2.69 (1.00 to 7.23)0.043.07 (1.09 to 8.62)0.033
Choose sex work for earning money
 No82.0 (73/89)1.00.05
 Yes72.3 (81/112)0.50 (0.25 to 1.07)
Duration in sex work
 >1 year64.3  (18/28)1.01.0
 7–12 months80.3 (53/66)2.27 (0.83 to 6.17)0.102.91 (0.098 to 8.60)0.044
 <6 months79.0  (83/107)2.10 (0.84 to 5.25)0.102.90 (1.02 to 8.19)0.054
Illicit drug use (past 6 months)
 No75.7 (140/185)1.01.0
 Yes87.5 (14/16)4.40 (0.55 to 35.02)0.128.54 (1.04 to 70.41)0.048
Received HIV testing (past year)
 Yes71.7 (43/60)1.01.0
 No78.7 (111/141)1.57 (0.78 to 3.16)0.382.35 (1.08 to 5.13)0.032
No condom used during last sex act with clientAge
 19 years19.6 (19/97)1.01.0
 15–18 years27.9 (29/104)1.61 (0.83 to 3.15)0.151.81 (0.88 to 3.72)
Age at sex debut
 >16 years27.7 (23/83)1.01.0
 ≤16 years21.4 (25/117)1.78 (0.92 to 3.46)0.082.0 (0.99 to 4.06)
Current marital status
 Never married, separated or single27.8 (40/144)1.01.0
 Married or cohabiting14.0 (8/57)0.42 (0.18 to 0.98)0.0380.37 (0.15 to 0.92)0.033
Duration of living with current partner
 ≤6 months31.5 (28/89)1.01.0
 >6 months18.0 (20/111)0.50 (0.26 to 0.99)0.0410.40 (0.19 to 0.82)0.014
Received HIV testing (past year)
 Yes10.0 (6/60)1.01.0
 No29.8 (42/141)3.87 (1.50 to 9.96)0.0022.88 (1.11 to 7.50)0.030
  • Any STI, reported at least one STI based on clinical diagnosis or laboratory screening from Neisseria gonorrhoeae/Chlamydia trachomatis/syphilis/Condyloma acuminatum/genital herpes simplex virus 2 infections.

  • STI, sexually transmitted infection.