Table 3 Factors associated with the use of NVP in the first ART regimen using a log-link Poisson model with robust standard errors.

Male sex*

0.95

0.93-0.97

< 0.01

Calendar year of ART initiation (per 2 years)

0.94

0.89-0.99

0.03

Country

   Kenya

ref

   Uganda

0.71

0.60-0.84

< 0.01

   Tanzania

1.06

1.01-1.12

0.01

Age at ART initiation (years)

   Quartile 1 (18-31)

Ref.

   Quartile 2 (32-37)

0.98

0.96-1.00

0.04

   Quartile 3 (38-43)

0.97

0.95-1.00

0.04

   Quartile 4 (44-88)

0.98

0.96-1.01

0.14

WHO stage at ART initiation⁺

   Stage 1

Ref.

   Stage 2

1.02

0.99-1.05

0.09

   Stage 3

0.98

0.96-1.01

0.46

   Stage 4

0.91

0.70-0.86

< 0.01

Pre-therapy CD4 level^±

   ≤ 50 cells/mm³

Ref.

   51-100 cells/mm³

1.04

1.02-1.08

< 0.01

   101-200 cells/mm³

1.07

1.00-1.13

0.02

   > 200 cells/mm³

1.03

0.99-1.07

0.14

Presence of tuberculosis

0.72

0.70-0.75

< 0.01