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Table 2 Socio-demographic, sex work, behavioural and sexual health characteristics of adolescent female sex workers, stratified by illicit drug use and polysubstance use in the past year (N = 310)

From: Sexual and reproductive health correlates of polysubstance use among female adolescents who sell sex in the southwest of China

Characteristics Abstain
(N = 283; 91%)
n (%)
illicit drug use
(N = 27; 9%)
n (%)
Abstain
(N = 51; 16%)
n (%)
Polysubstance use
(N = 259; 84%)
n (%)
Socio-demographic variables
 Age, median years (IQR)a 19(18–19) 19(17–19) 19(18–19) 19(18–19)
 Education level     **
  Illiterate or primary school only 81(29) 8(30) 32(63) 57(22)
  Middle school (Grade 7–9) 150(53) 16(59) 14(27) 152(59)
  High school or higher (Grade 10–12) 52(18) 3(11) 5(10) 50(19)
 Current marital status
  Never married or single 134(48) 11(41) 20(39) 125(48)
  Married or cohabiting 149(52) 16(59) 31(61) 134(52)
 Place of birth
  local 49(17) 4(15) 8(16) 45(17)
  Elsewhere 234(83) 23(85) 43(84) 214(83)
Sex work variables
 Median weekly number of male clients (PM) (IQR)a 2(1–3) 2(2–4) 2(1–3) 2(1–3)
 Duration in sex work
  ≤ half year 176(62) 15(56) 32(63) 159(61)
  > half year 107(38) 12(44) 19(37) 100(39)
 Average monthly income from sex workcd   *   **
  ≤ 360 EUR (low level) 92(33) 3(11) 28(55) 67(26)
  > 360EUR (Middle to high level) 189(67) 24(89) 23(45) 190(74)
Sexual behavioural variables
 Age at sex debut, median years (IQR)a 17(16–18) 16(16–17) 16(15–18) 17(16–18)
 Coerced for forced sex at sex debut 55(19) 15(56)** 15(29) 55(21)
 Median number of intimate male partner (PY) (IQR)a 1(1–2) 2(1–2) 1(1–2) 1(1–2)
 Had any intimate male partner with illicit drug use 44(16) 15(56)** 1(2) 58(22)**
 Had sex without a condom while drunk (PM) 86(30) 11(41) 7(14) 90(35)*
 Experienced sexual and gender-based violence (PY) 99(35) 19(70)** 6(12) 112(43)**
 Inconsistent condom use with any male partners (PM) 200(71) 24(89)* 30(59) 194(75)*
 Unmet need for modern contraception 97(34) 13(48) 8(16) 102(39) **
 Utilization of health service for any STIs treatmente   **   
  Safe medical care 186(69) 7(27) 34(71) 159(64)
  Unsafe medical care 86(31) 19(73) 14(29) 91(36)
 Received HIV testing (PY)f 128(45) 12(44) 31(62) 109(42) *
Sexual health variables
 Prior abortion 12(23) 17(63)* 11(22) 125(48) **
 Any self-reported symptom of STIs (PY) 22(42) 23(85)* 21(41) 184(71) **
  1. p-value using Pearson’s Chi-squared tests, unless otherwise indicated: a Wilcoxon rank sum test, b Fisher’s exact test
  2. IQR interquartile range, PY past year, PM past month
  3. *p-value ≤0.05; ** p-value ≤0.001
  4. cAverage income was divided into three groups (low level, middle level and high level) according to local income level of general population in Kunming in 2012
  5. d Two responses were missing in the question of monthly income;e Twelve responses were missing in the question of STIs treatment;f One response was missing in the question of HIV testing