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Table 3 Crude and adjusted hazard ratios for key risk factors on lost to follow-up from multivariable Cox proportional hazard model: Women

From: Risk factors for loss to follow-up prior to ART initiation among patients enrolling in HIV care with CD4+ cell count ≥200 cells/μL in the multi-country MTCT-Plus Initiative

  Univariate Multivariable
  HR (95 % CI) P-value HR (95 % CI) P-value
Age at enrollment (years)     
 15-19 3 (2.2-4.2) <0.0001 2.8 (2.1-3.6) <0.0001
 20-24 2.1 (1.8-2.4) <0.0001 1.9 (1.7-2.2) <0.0001
 25-29 1.5 (1.2-1.7) <0.0001 1.4 (1.1-1.7) 0.0010
 30+ 1.0 - 1.0 -
Pregnant at baseline 1.7 (1.2-2.4) 0.0024 - -
Pregnant (time dependent) 2.1 (1.5-2.8) <0.0001 1.9 (1.4-2.5) <0.0001
Baseline CD4 count (cells/mm 3 )     
 200-349 1.0   1.0  
 350-499 1.5 (1.0-2.1) 0.0486 1.5 (1.0-2.1) 0.0439
 ≥500 1.5 (1.1-2.2) 0.0256 1.5 (1.0-2.0) 0.0339
Baseline WHO stage     
 Stage I 1.0 - - -
 Stage II 0.73 (0.44-1.2) 0.2213 - -
Did not disclose HIV status to partner 1.3 (0.86-1.9) 0.2364 - -
Married or living with partner 0.97 (0.83-1.1) 0.6578 - -
≥13 years of education 0.59 (0.34-1.0) 0.0.497 - -
Receiving OI prophylaxis at enrollment 0.68 (0.40-1.1) 0.1437 - -
Employed outside the home 0.63 (0.52-0.75) <0.0001 0.73 (0.59-0.90) 0.0038
BMI quartiles (kg/m 2 )    -  
 ≤21.9 1.0 - - -
 22-24.2 1.0 (0.81-1.3) 0.8273 - -
 24.3-27.2 1.1 (0.85-1.5) 0.4089 - -
 27.3+ 1.0 (0.82-1.3) 0.9097 - -
Electricity inside the home 0.68 (0.49-0.93) 0.0178 - -
Tap water inside the home 0.82 (0.52-1.3) 0.4046 - -
Adult household member enrolled in the program 0.44 (0.28-0.67) 0.0002 0.40 (0.26-0.61) <0.0001
≥4 people in the household 0.67 (0.54-0.84) 0.0004 0.74 (0.64-0.85) <0.0001
At least 1 child < 5 years old in the household 0.73 (0.58-0.92) 0.0088 - -
>2 hours away from the clinic 1.0 (0.68-1.5) 0.9152 - -
Year of enrollment     
 2003 1.0 - - -
 2004 1.3 (1.1-1.7) 0.0087 - -
 2005 1.6 (1.1-2.2) 0.0091 - -
 2006-2007 1.6 (0.85-3.2) 0.1348 - -
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