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Table 2 Factors associated with chlamydia testing among FSW in Southern China, 2018 (N = 1207)

From: Uptake and correlates of chlamydia and gonorrhea testing among female sex workers in Southern China: a cross-sectional study

Characteristics Crude Model Adjusted Model#
OR (95%CI) P OR (95%CI) P
Age (years)
 18–25 Ref Ref
 26–29 0.51(0.28–0.93) 0.028 0.73(0.37–1.46) 0.371
 30–34 0.56(0.30–1.02) 0.058 1.12(0.44–2.90) 0.808
  ≥ 35 1.51(0.90–2.54) 0.115 2.14(0.85–5.39) 0.106
Ethnicity
 Han Ref Ref
 Non-Han 2.05(1.24–3.40) 0.005 2.24(1.28–3.93) 0.005
Marital status
 Not married Ref Ref
 Married 0.71(0.46–1.08) 0.109 0.58(0.27–1.25) 0.164
 Divorced or widowed 2.56(1.46–4.49) 0.001 1.46(0.58–3.64) 0.423
Education level
 Illiterate or elementary school Ref Ref
 Junior high school 1.06(0.68–1.65) 0.789 1.51(0.94–2.45) 0.090
 High school and above 1.67(0.86–3.25) 0.131 2.52(1.19–5.33) 0.016
Monthly income (USD)
  < $500 Ref Ref
 $500–$1000 0.49(0.33–0.74) 0.001 0.47(0.29–0.74) 0.001
  > $1000 0.48(0.27–0.84) 0.010 0.29(0.16–0.55) 0.001
Household registration
 Local city Ref Ref
 Other cities in this province 0.74(0.39–1.39) 0.348 0.77(0.39–1.50) 0.478
 Other provinces 0.30(0.17–0.53) < 0.001 0.30(0.16–0.55) 0.001
Length of time working in current location
 1 year and above Ref Ref
 6–12 months 0.42(0.25–0.70) 0.001 0.47(0.27–0.81) 0.006
  < 6 months 0.10(0.03–0.32) < 0.001 0.14(0.04–0.45) 0.001
Workplace
 Middle tier Ref Ref
 Low tier 4.06(1.47 ~ 11.18) 0.007 3.53(1.23 ~ 10.14) 0.019
Average number of clients in the past month (continue variable)
  1.04(1.01 ~ 1.07) 0.041 1.03(1.01 ~ 1.05) 0.043
Consistent condom uses with clients in the past month
 No Ref   Ref  
 Yes 1.41(0.93 ~ 2.13) 0.101 1.79(1.12 ~ 2.86) 0.016
Providing anal sex for clients
 No Ref Ref
 Yes 3.50(2.38 ~ 5.16) < 0.001 2.36(1.54 ~ 3.60) < 0.001
Regular partner (boyfriend or husband)
 No Ref Ref
 Yes 1.86(1.12 ~ 3.09) 0.017 3.12(1.72 ~ 5.68) 0.002
STD symptoms in the past 12 months
 No Ref Ref
 Yes 5.44(3.66 ~ 8.09) < 0.001 4.09(2.62 ~ 6.40) < 0.001
HIV testing in the past 12 months
 No Ref Ref
 Yes 5.32(3.57 ~ 7.92) < 0.001 5.16(3.21 ~ 8.30) < 0.001
Syphilis testing in the past 12 months
 No Ref Ref
 Yes 6.82(4.5 ~ 10.33) < 0.001 6.90(4.21 ~ 11.22) < 0.001
Smoke in the past 12 months
 No Ref Ref
 Yes 0.57(0.33–1.01) 0.051 0.59(0.33–1.06) 0.076
Sexual abuse in the past 12 months
 No Ref Ref
 Yes 3.60(2.11–6.15) < 0.001 4.42(2.64–7.39) < 0.001
  1. Note: # Age, ethnicity, marital status, education level, monthly income, household registration and length of time working in the current location were adjusted for each other, all other variables were adjusted for age, ethnicity, marital status, education level, monthly income, household registration and length of time working in the current location