Table 2 Bivariate and multivariate logistic regression for factors associated with inappropriate PI prescription during rifampicin-based TB treatment

Cadre of prescribing clinician

 Clinical officer

1

1

 Doctor

0.22 (0.13–0.36)

0.26 (0.15–0 .46)

 Nurse

0.27 (0.15–0.47)

0.35 (0.18–0 .71)

Clinic level

 KCCA

1

1

 RRH

2.08 (1.26–4.18)

1.10 (0.60–2.03)

Age (years)

  < 25

1

1

 25–34

0.87 (0.47–1.59)

0.86 (0.42–1.76)

 35–44

1.04 (0.56–1.91)

0.97 (0.47–2.01)

 45–54

1.48 (0.69–3.16)

1.24 (0.52–2.96)

 55–64

0.29 (0.11–0.76)

0.33 (0.11–1.02)

Weight (kg)

  < 33

1

1

 33–39

1.41 (0.47–4.21)

1.10 (0.33–3.70)

 40–54

2.14 (0.89–5.10)

1.95 (0.71–5.38)

 55–70

1.88 (0.77–4.61)

1.78 (0.59–5.32)

  > 70

0.62 (0.20–1.90)

0.49 (0.12–1.94)

Duration on PI before TB treatment

 PI and TB treatment started the same day

1

1

  < 1 year

1.35 (0.81–2.27)

1.01 (0.58–1.77)

 1 year–≤ 2 years

2.41 (1.21–4.80)

1.45 (0.69–3.05)

  > 2 years

2.96 (1.57–5.55)

1.56 (0.77–3.16)