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Table 2 Factors associated with missing any one-vaccination visit, and non-retention in the SiVET study

From: Factors associated with vaccination completion and retention among HIV negative female sex workers enrolled in a simulated vaccine efficacy trial in Kampala, Uganda

Variable Sub Category Missing any one vaccination visit Non retention
Unadjusted IRR (95%CI) LRT-p value Adjusted IRR (95%CI) Unadjusted IRR (95%CI) LRT-p value Adjusted IRR (95%CI)
Age (years) 35+ 1.00 0.013 1.00 1.00 0.002 1.00
18–34 3.59 (1.31–9.83)   13.10 (1.89–90.92) 3.24 (1.52–6.88)   6.59 (2.11–20.57)
Education level None 1.00 0.666   1.00 0.492  
Primary 0.67 (0.24–1.86)    0.61 (0.27–1.37)   
Secondary or higher 0.62 (0.22–1.74)    0.67 (0.30–1.50)   
Marital Status Single never married 1.00 0.669   1.0 0.714  
Married 1.62 (0.53–4.93)    1.32 (0.51–3.40)   
Separated or widowed 1.27 (0.63–2.54)    1.24 (0.72–2.12)   
Alcohol use in the past month None 1.00 0.226   1.00 0.327  
Once a week or less 0.59 (0.31–1.14)    0.73 (0.42–1.25)   
Daily 0.91 (0.46–1.78)    1.02 (0.58–1.80)   
Drug use in the past month No 1.00 0.841   1.00 0.295  
Yes 1.06 (0.58–1.94)    1.28 (0.80–2.05)   
Drunk before sex in past month Never 1.00 0.903   1.00 0.973  
Sometimes /most times 0.98 (0.56–1.71)    1.03 (0.66–1.61)   
Always 0.72 (0.17–2.99)    0.91 (0.29–2.87)   
Reported VDS in past 3 months No 1.00 0.217   1.00 0.998  
Yes 1.42 (0.81–2.45)    0.99 (0.62–1.62)   
Reported GUD in past 3 months No 1.00 0.003 1.00 1.00 0.012 1.00
Yes 2.44 (1.36–4.37)   3.02 (1.71–5.33) 1.58 (0.93–2.68)   1.90 (1.09–3.32)
Number of sexual partners 0–2 1.00 0.866   1.00 0.427  
3–5 1.04 (0.31–3.53)    0.71 (0.29–1.72)   
6+ 1.22 (0.40–3.71)    1.06 (0.51–2.21)   
New sexual partner in past 3 months No 1.00 0.481   1.00 0.268  
Yes 0.73 (0.31–1.74)    0.71 (0.38–1.31)   
Condom use with new partner(s) Never/Inconsistently 1.00 0.03 1.00 1.00 0.060 1.00
Consistently 2.06 (0.82–5.20)   2.57 (1.10–6.07) 2.08 (0.97–4.47)   2.04 (1.00–4.15)
Giving payment for sex in past 3 months No 1.00 0.380   1.00 0.204  
Yes 1.35 (0.69–2.63)    1.42 (0.83–2.42)   
  1. Multivariable analysis adjusted for age, genital ulcer disease in the past 3 months and condom use with a new partner(s)
  2. Data in bold are statistically significant