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Table 3 Covariates of consent for HIV testing (Zewditu Memorial Hospital, Addis Ababa, 2003–04)

From: Implications of the HIV testing protocol for refusal bias in seroprevalence surveys

  Consent level (row %)    Consent level (row %)  
Age a A B C Total Counselor b A B C Total
16–19 86.0 4.7 9.4 107 1 57.5 13.7 28.8 73
20–29 73.9 11.7 14.5 498 2 91.4 5.0 3.6 303
30–39 68.7 14.1 17.2 396 3 53.6 3.6 42.9 28
40–49 77.3 9.7 13.0 247 5 73.2 26.8 0.0 41
50–59 77.5 10.6 12.0 142 6 0.0 0.0 100.0 2
60+ 85.9 3.9 10.3 156 7 98.5 0.3 1.2 322
Pearson Chi2(10) = 28.99 p < .01 8 63.1 16.6 20.3 728
Missing 100.0 0.0 0.0 1 9 56.0 10.0 34.0 50
      Pearson Chi2(14) = 276.27, p < .01
Education      
Illiterate 82.3 10.2 7.5 362 Ward
1–6th grade 76.5 11.8 11.8 272 ER 76.2 13.9 9.9 625
7–12th grade 76.0 11.0 13.0 607 GY 55.2 9.5 35.3 201
>12th grade 61.2 10.9 27.9 129 IM 57.7 20.6 21.7 97
Pearson Chi2(8) = 37.46 p < .01 SU 84.1 6.1 9.8 624
Missing 68.9 7.9 23.2 177 Pearson Chi2(6) = 134.44, p < .01
Marital status Study month a
Single 78.6 11.6 9.8 481 Prior to ART 64.0 16.2 19.8 445
Mar 76.5 9.0 14.6 769 Since ART 80.1 8.4 11.5 1,102
Div/wid 69.5 17.8 12.7 118 Pearson Chi2(2) = 44.72, p < .01
Pearson Chi2(4) = 14.49, p < .01      
Missing 67.0 10.1 22.9 179 Gender
      Female 75.3 9.9 14.7 876
Likelihood of infection a Male 75.7 11.5 12.8 671
≤ 7.49 83.5 6.4 10.1 376 Pearson chi2(2) = 1.86, p = 0.40
7.5 – 14.9 79.0 8.6 12.5 409      
15.0 – 29.9 69.4 10.6 20.0 376      
≥ 30 69.9 16.9 13.3 385      
Pearson Chi2(6) = 44.05, p < .01      
Missing 0.0 100.0 0.0 1      
  1. Notes:
  2. a In the regression models in Tables 4 and 5, age is defined in terms of single year age groups and study month is coded 0 for the period prior to the introduction of ART and consecutive numbers for months that followed. HIV likelihood is used as the proportion HIV+ for each ICD-10 entry in Table 1. The other variables are defined as shown in the table.
  3. b Counselor #4 only worked in the TB/HIV clinic and omitted from this table and any subsequent analysis. Counselor 6 worked primarily in the pediatrics ward.