Table 2 Cox proportional hazard analysis to establish risk factors for retention in care among the adolescents

Sex

Female

1

Male

0.687 (0.462–1.020)

-

-

-

-

Age group (years)

10–14

1*

1*

1*

1

1*

15–19

2.291 (1.455–3.609)

1.964 (1.033–3.735)

3.048 (1.600-5.808)

1.486 (0.760–2.905)

4.499 (1.491–13.575)

Age at ART initiation (years)

0–9

1*

1*

1*

1*

10–14

1.896 (1.112–3.232)

1.322 (0.671–2.604)

1.962 (0.956–4.026)

1.837 (0.828–4.073)

15–19

4.917 (3.211–7.530)

2.179 (1.100-4.316)

5.098 (3.055–8.506)

3.496 (1.338–9.134)

Duration on ART (Months)

<=24

1*

1*

1

1

> 24

0.266 (0.178–0.396)

0.236 (0.147–0.380)

0.463 (0.211–1.017)

0.456 (0.191–1.091)

Current ART regimen

First line

1*

1*

1*

1*

1

Switched (Second Line + Third line)

2.257 (1.287–3.595)

4.024 (2.021–8.012)

2.801 (1.433–5.478)

6.598 (2.939–14.816)

1.568(0.556–4.419)

TB Screen results

Incomplete

1*

1*

1

1*

1

1*

Negative

0.295 (0.149–0.585)

0.215 (0.095–0.489)

0.460 (0.167–1.265)

0.230 (0.080–0.665)

0.167 (0.065–0.429)

0.223 (0.063–0.794)

Positive

0.658 (0.221–1.965)

0.152 (0.028–0.822)

1.477 (0.396-5.500)

0.264 (0.046–1.509)

0.000 (0.000- )

0.000 (0.000- )

WHO clinical stage at ART initiation

1/2

1

1

1*

1

3/4

1.091 (0.0.639–1.862)

1.149 (0.601–2.196)

2.406 (0.971–4.312)

0.974 (0.377–2.517)

Facility level

Health centre

1*

1*

1*

1*

Hospital

0.494 (0.296–0.823)

0.488 (0.258–0.923)

0.547 (0.230–1.298)

1.382 (0.411–4.465)

PHC clinic

1.774 (1.119–2.813)

1.475 (0.841–2.588)

2.430 (1.083–5.451)

4.322 (1.332–14.024)