Table 6 Negative binomial regression analysis of crude rate ratio and adjusted rate ratio for treatment adherence according to sociodemographic characteristics (n = 113)

Arm

Intervention (57)

59.44 (1.29)

1.19 (1.09–1.29)

<0.001

1.16 (1.07–1.26)

<0.001

Control (56)

49.98 (14.68)

1

1

 Gender

Female (40)

53.15 (14.21)

0.96 (0.89–1.02)

0.162

1.02 (0.95–1.09)

0.658

Male (73)

55.63 (9.45)

1

1

 Age

-

0.99 (0.99–1.00)

0.140

0.99 (0.99–1.00)

0.704

 Marital status

Married (51)

55.88 (10.29)

1.04 (0.98–1.10)

0.229

Unmarried (62)

53.82 (12.18)

1

 Occupation

No Job (36)

50.00 (15.99)

0.88 (0.79–0.97)

0.007

0.89 (0.82–0.98)

0.012

Have job (77)

56.97 (7.54)

1

1

 Education

Below Prep (82)

53.77 (12.82)

0.94 (0.88–1.00)

0.061

0.93 (0.86–1.02)

0.108

Prep and above (31)

57.35 (5.38)

1

1

 # of people

≤ 3 (66)

56.00 (10.95)

1.06 (0.99–1.12)

0.082

1.04 (0.98–1.11)

0.225

≥ 4 (47)

53.00 (11.82)

1

1

 # of bedrooms

1 (71)

54.72 (10.95)

0.99 (0.94–1.06)

0.959

≥ 2 (42)

54.81 (12.17)

1

 Household head

No (50)

53.76 (12.09)

0.97 (0.91–1.03)

0.299

Yes (63)

55.54 (10.79)

1

 Residency

Permanent (91)

54.37 (11.52)

0.97 (0.89–1.04)

0.368

Temporary (22)

56.31 (10.81)

1

 Smoking per day

Never (94)

55.05 (10.84)

1.03 (0.95–1.12)

0.430

Yes (19)

53.26 (13.91)

1

 Khat

Never (91)

54.65 (11.83)

0.99 (0.92–1.07)

0.804

Yes (22)

55.18 (9.42)

1

 Alcohol

Never (72)

55.09 (11.19)

1.02 (0.96–1.08)

0.591

Yes (41)

54.15 (11.78)

1

 HIV

Negative (96)

54.39 (11.82)

0.96 (0.88–1.04)

0.322

Positive (17)

56.76 (8.36)

1

 TB treatment

New (102)

54.35 (11.86)

0.93 (0.84–1.03)

0.157

0.97 (0.87–1.07)

0.502

Relapse (11)

58.45 (3.05)

1

1

 At least one -ve urine isoniazid

No (100)

56.01 (10.19)

1.24 (1.12–1.37)

< 0.001

1.15 (1.00–1.31)

0.043

Yes (13)

45.08 (15.31)

1

1