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Table 7 Environmental- and individual-level factors associated with TB among household contacts (n = 1,276), September 2020 - December 2022

From: Comparison of the yield of two tuberculosis screening approaches among household contacts in a community setting of Silti Zone, Central Ethiopia: a prospective cohort study

Household and individual factors

TB status

COR [95%CI]

AOR [95%CI]

No (%)

Yes (%)

Screening approach

Baseline only

516 (98.9)

6 (1.1)

1

1

Repeat screen

736 (97.7)

17 (2.3)

2 [0.79,5.02]

0.9 [0.29,2.91]

House area

40–717 m2

556 (97.5)

14 (2.5)

1

1

20–40 m2

656 (98.6)

9 (1.4)

0.5 [0.24,1.24]

0.4 [0.15,1.12]

Electricity use

No

574 (96.6)

14 (2.4)

1

1

Yes

677 (98.7)

9 (1.3)

0.6 [0.24,1.26]

0.6 [0.19,1.72]

Marital status of index cases

Single

385 (98.2)

7 (1.8)

1

1

Married

786 (98.5)

12 (0.15)

0.8 [0.33,2.10]

1.5 [0.42,49.7]

Divorced

41 (95.4)

2 (4.7)

2.6 [0.54,12.81]

4.23 [0.65,27.43]

Widowed

34 (94.4)

2 (5.6)

3.3 [0.67,15.75]

26.9 [2.26,320.71]

BMI of contacts

> 20

578 (98.8)

7 (1.2)

1

1

<=20

573 (97.3)

16 (2.7)

2.3 [0.94,5.63]

1.5 [0.56,4.24]

Cough

No

1,095 (99.6)

4 (0.4)

1

1

Yes

149 (88.7)

19 (11.3)

35 ]11.7,104.0]

10.9 [2.55,46.37] *

Blood in sputum

No

1,233 (98.4)

20 91.6)

1

1

Yes

11 (78.6)

3 (21.4)

16 [4.32,64.53]

3.3 [0.69,15.83]

Fever

No

1,192 (98.7)

16 (1.3)

1

1

Yes

52 (88.1)

7 (11.9)

9.9 [3.91,25.22]

0.9 [0.33,2.98]

Night sweating

No

1,173 (98.7)

15 (1.3)

1

1

Yes

71 (89.9)

8 (10.1)

8.9 [3.67,21.69]

0.5 [0.14,1.61]

Loss of appetite

No

1,175 (98.7)

15 (1.3)

1

1

Yes

69 (89.6)

8 (10.4)

9 [3.72,22.15]

0.4 [0.09,1.96]

Weight loss

No

1,198 (98.7)

16 (1.3)

1

1

Yes

46 (86.8)

7 (13.20

11.4 [4.46,28.96]

2.5 [0.53,11.64]

Chest pain

No

1,198 (98.4)

19 (1.6)

1

1

Yes

46 (92.0)

4 (8.0)

5.5 [1.80,16.79]

0.5 [0.15,1.95]

Chronic fatigue

No

1,167 (99.3)

8 (0.7)

1

1

Yes

75 (8.3)

15 (16.7)

29.3 [12.08,71.28]

6.1 [1.76,21.29] *

Contact duration before index case treatment

> 37 days

622 (8.9)

7 (1.1)

1

1

<= 37 days

606 (97.4)

16 (2.6)

2.2 [0.45,5.56]

2.1 [0.71,6.15]

Daily duration of contact

< 8 h.

778 (99.2)

6 (0.8)

1

1

>=8 h.

399 (95.9)

17 (4.1)

5.5 [2.16,13.93]

4.6 [1.57,13.43] *

Age of index cases

   

0.9 [0.96,1.02]

0.9 [0.91,0.99] *

  1. *: significant at p < 0.05