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Table 4 Factors associated with dropping out of care immediately after initiating ART in the Limbe ART programme, Feb 2002-Dec 2005

From: Retention in an antiretroviral therapy programme during an era of decreasing drug cost in Limbe, Cameroon

   Complete Cases   Multiple Imputation
Characteristic n/N % Crude HR Adjusted HR Missing N(%) Crude HR Adjusted HR
    (95% CI) (95% CI)   (95% CI) (95% CI)
Age group        
   30+ 441/2081 21.2 1.00 1.00 116 1.00 1.00
   < 30 159/723 22.0 1.06 (0.83, 1.33) 1.07 (0.82, 1.40) (3.97) 1.03 (0.84, 1.27) 1.09 (0.86, 1.37)
Sex*        
   Male 215/1104 19.5 1.00 1.00 1 1.00 1.00
   Female 416/1815 22.9 1.20 (0.77, 1.49) 1.24 (0.98, 1.57) (0.03) 1.23 (1.02, 1.49) 1.22 (1.00, 1.50)
Occupation*        
   Unemployed 137/706 19.4 1.00 1.00 170 1.00 1.00
   With some kind of income 453/2044 22.2 1.12 (0.88, 1.43) 1.23 (0.95, 1.60) (5.82) 1.19 (0.96, 1. 49) 1.27 (1.00, 1.61)
   Marital status*        
   Married/ living as 232/1166 19.9 1.00 1.00 143 1.00 1.00
   Never 266/1207 22.0 1.07 (0.86, 1.35) 1.01 (0.79, 1.28) (4.90) 1.14 (0.94, 1.39) 1.03 (0.84, 1.27)
   Previous marriage 97/404 24.0 1.13 (0.82, 1.54) 1.05 (0.76, 1.46)   1.28 (0.97, 1.68) 1.16 (0.87, 1.54)
Residence by distance to ART clinic*        
   Residents in Limbe 138/621 22.2 1.00 1.00 117 1.00 1.00
   Residents < 40 km from Limbe 177/801 22.1 1.16 (0.87, 1.55) 1.16 (0.86, 1.57) (4.01) 1.01 (0.79, 1.29) 0.95 (0.74, 1.22)
   Residents 40-150 km from Limbe 156/788 19.8 0.84 (0.62, 1.15) 0.82 (0.60, 1.13)   0.87 (0.68, 1.13) 0.83 (0.64, 1.08)
   Residents > 150 km from Limbe 97/454 21.4 1.06 (0.75, 1.50) 1.04 (0.74, 1.48)   0.95 (0.71, 1.28) 0.92 (0.69, 1.23)
   Residents from Douala, 74 km away*** 31/139 22.3 0.97 (0.57, 1.64) 1.00 (0.59, 1.69)   1.01 (0.65, 1.56) 0.95 (0.61, 1.47)
Means of payment for antiretroviral drugs*        
   Entirely paid by programme or employer 14/87 16.1 1.00 1.00 592 1.00 1.00
   Paid by self, family or partly by other 456/2241 20.4 0.86 (0.46, 1.61) 0.80 (0.42, 1.52) (20.27) 1.33 (0.74, 2.39) 1.25 (0.67, 2.32)
Cohort        
   Enrolled before Oct 1,2004 295/1487 19.8 1.00 1.00 0 N/A 1.00
   Enrolled on or after Oct 1,2004 336/1433 23.5 1.06 (0.86, 1.30) 1.05 (0.85, 1.30) (0.0)   1.22 (1.03, 1.46)
Entry CD4 count (cells/μL)        
   > 100 296/1428 20.7 1.00 1.00 205 1.00 1.00
   0-99 292/1287 22.7 1.09 (0.88, 1.34) 1.08 (0.87, 1.33) (7.02) 1.13 (0.94, 1.35) 1.14 (0.95, 1.36)
  1. (Complete case N = 2188; Multiple Imputation N = 2920).
  2. *Sample size smaller due to missing values, **Difficult access took into account the distance from ART centre as well as the presence of unpaved or poorly maintained road, ***Patients residing in Douala with regular transport on paved roads and may have had other ART opportunities. Abbreviations: ART (antiretroviral therapy)