# Table 2 Multivariate logistic regression analysis of factors associated with retention of HEIs in care, Arua Regional Referral Hospital

Characteristics Retained in care at 18-months? Univariable logistic regression analysis (UOR, 95% CI) Multivariable logistic regression analysis (AOR, 95% CI)
No Yes UOR (95%CI) AOR (95%CI)
Birth place
Home 34 (29.3) 82 (70.7) 1 1
Facility 41 (17.4) 195 (82.6) 1.97* (1.17–3.33) 1.62 (0.94–2.79)
aMode of delivery
Caesarea section 23 (38.3) 37 (61.7) 1
Normal 52 (17.8) 240 (82.2 2.87*** (1.57–5.23)
Time of NVP initiation
None 20 (47.6) 22 (52.4) 1 1
From birth to 6-weeks 54 (17.7) 252 (82.3) 4.24*** (2.16–8.32) 3.07** (1.50–6.26)
After 6-weeks of birth 1 (25.0) 3 (75.0) 2.73 (0.26–28.39) 3.06 (0.23–34.03)
Maternal age at enrolment into EMTCT in years
15–24 28 (34.1) 54 (65.9) 1 1
25–46 47 (17.4 223 (82.6) 2.46** (1.41–4.28) 2.32** (1.32–4.06)
Infant Feeding option in the first 6-months
Replacement feeding 3 (37.5) 5 (62.5) 1
Mixed feeding 27 (48.2) 29 (51.8) 0.64 (0.14–2.96)
Exclusive Breast feeding 45 (15.6) 243 (84.4) 3.24 (0.75–41.04)
ANC use during recent pregnancy
No 32 (15.8) 170 (84.2) 1 1
Yes 43 (28.7) 107 (71.3) 2.13** (1.27–3.58) 2.02** (1.19–3.41)
aMaternal ARV use
During ANC only 5 (50.0) 5 (50.0) 1
During ANC and labour only 8 (57.1) 6 (42.9) 0.75 (0.15–3.83)
For life 62 (18.9) 266 (81.1) 4.29* (1.20–15.28)
1. Exponentiated coefficients; 95% confidence intervals in brackets
2. * p < 0.05, ** p < 0.01, *** p < 0.001
3. In Table 2, percentages were calculated as row percentage (n/N); ANC Antenatal care, AOR Adjusted Odds Ratio, UOR Unadjusted Odds Ratio; a: Collinear variables with variance inflation factor greater than 10