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. 2023 May 3;23:809. doi: 10.1186/s12889-023-15745-1

Table 6.

COR* and AOR** from the multilevel mixed-effect logistic regression of syphilis and independent factors among female sex workers, national HIV and STI£ bio-behavioral survey, Ethiopia, 2019–2020

Characteristic COR P-value AOR (95% CI) P-value
Age category
 5 – 19 1 1
 20 – 24 1.37 0.307 1.34 (0.72, 2.46) 0.353
 25 – 29 2.42 0.003 1.62 (0.88, 2.98) 0.120
 30 – 34 5.2  < 0.001 2.64 (1.40, 4.98) 0.003
 35 – 59 11.09  < 0.001 4.70 (2.50, 8.86)  < 0.001
Marital status
 Married/Cohabiting 2.07 0.016 1.70 (0.92, 3.13) 0.091
 Divorced/Separated/Widowed 2.95  < 0.001 1.37 (1.03, 1.82) 0.033
 Never married 1 1
Highest grade attended
 Non-formal Education 5.69  < 0.001 3.38 (2.34, 5.11)  < 0.001
 Primary 1st cycle (grades 1–4) 3.6  < 0.001 2.77 (1.79, 4.30)  < 0.001
 Primary 2nd cycle (grades 5–8) 1.88 0.001 1.80 (1.21, 2.69) 0.004
 Secondary school and above 1 1
Living with a sexual partner
 No 1
 Yes 0.54 0.022
The main source of income
 Other than sex work 1
 Sex work 0.66 0.036
Average monthly income from selling sex in ETB
 < 2500 3.64  < 0.001 1.74 (1.09, 2.78) 0.020
 2500—4999 2.26  < 0.001 1.41 (0.89, 2.23) 0.141
 5000—7499 1.27 0.351 1.03 (0.61, 1.73) 0.920
 7500 +  1 1
Alcohol consumption levels
 Not depressed 1
 Mild Depression 0.97 0.83
 Moderate to severe depression 1.57 0.003
First sex experience
 Wanted 1.43 0.003
 Forced 1
Number of cities worked sex selling in the last three years
 Same town 1
 1 more town 0.68 0.036
 2 or more towns 0.65 0.088
Number of clients in the past 6 months
 < 30 1.89  < 0.001
 31—60 1.51.252 0.233
 61—90 1.14 0.592
 91 +  1
Age at first sex selling
 < 20 1
 20—24 1.55 0.003
 25 +  3.27  < 0.001
Age at first sex
 15 or less 1.48 0.001
 16—20 1
 21 +  1.04 0.896
Only Bar or Hotel FSW
 No 2.18  < 0.001 1.53 (1.45, 2.05) 0.004
 Yes 1
Only Own home FSW
 No 1
 Yes 3.04  < 0.001
Hepatitis B
 Non-Reactive 1
 Reactive 1.58  < 0.001
Number of sexual partners without condoms in the last 30 days
 Consistent 1
 In-consistent 1.38 0.028
Experienced condom failure in the last 30 days
 No breakage 1
 Breakage 1.52  < 0.001
HIV test result
 Tested Negative 1 1
 Tested New Positive 4.58  < 0.001 2.61 (1.92, 3.56)  < 0.001
 Known Positive 4.92  < 0.001 2.41 (1.76, 3.3)  < 0.001
Ever been pregnant
 No 1
 Yes 2.78  < 0.001
Number of pregnancies
 0 1
 1 2.13  < 0.001
 2 2.92  < 0.001
 3 +  4.56  < 0.001
Currently pregnant
 No 1
 Yes 0.46 0.195
History of miscarriage pregnancy
 No 1
 Yes 1.32 0.100
Constant 0.004 (0.002, 0.01)  < 0.001
Random effects
 Towns/cities 0.35 0.15 0.80
 ICC 0.096 0.044 0.20
LR test vs. logistic model
 chibar2 = 61.32
P-value =  < 0.001

*Crude Odds Ratio ** Adjusted Odds Ratio £ Sexually Transmitted Infections