Table 2.
Assessment of the prisons environment, incarcerated time and number of prisoner in a particular prison room compared with smear positive pulmonary tuberculosis infection among North Gondar Zone prisons, February—April 2015
| Variables | Sputum Microscopy result | ||||||
|---|---|---|---|---|---|---|---|
| Smear + ve n (%) |
Smear -ve n (%) |
Total | COR (95 % Cl) |
P-Value | Adjusted OR (95 % Cl) |
P-value | |
| Incarcerated time (Month) | |||||||
| < 2 | 2 (13.3) | 25 (9.4) | 27 (9.6) | 1 | 1 | 1 | |
| 2–6 | 3 (20) | 55 (20.6) | 58 (20.6) | 0.68 (0.11–4.330 | 0.685 | 1.54 (0.12–10.30) | 0.970 |
| 7–12 | 2 (13.3) | 63 (23.6) | 65 (23) | 0.40 (0.05–2.97) | 0.36 | 0.79 (0.06–5.65) | 0.624 |
| > 12 | 8 (53.4) | 124 (46.4) | 132 (46.8) | 0.81 (0.16–0.53) | 0.029 | 1.02 (0.11–5.26) | 0.759 |
| Frequency of imprisonment | |||||||
| Once | 14(93.3) | 258(96.6) | 272(96.5) | 1 | 1 | 1 | |
| Twice and above | 1 (6.7) | 9 (3.4) | 10 (3.5) | 2.05 (0.24–17.31) | 0.511 | 10.52(0.78–142.10) | 0.062 |
| Number of prisoners per cell | |||||||
| < 50 | 2 (13.3) | 55 (20.6) | 57 (20) | 1 | 1 | 1 | |
| 51–100 | 1 (6.7) | 73 (27.3) | 74 (26) | 0.38 (0.03–4.26) | 0.43 | 0.19 (0.01–2.90) | 0.006 |
| > 100 | 12 (80) | 139(52.1) | 151(53.5) | 2.37 (0.52–10.95) | 0.048 | 3.32 (3.29–8.51) | 0.002* |
| Window opening practice | |||||||
| Always | 6 (40) | 108(40.4) | 114 (40.4) | 1 | 1 | 1 | |
| Some times | 0 (0) | 11 (4.12) | 11 (3.9) | NC | 0.99 | NC | 0.202 |
| Never | 9 (60) | 148(55.5) | 157 (5 5.7) | 1.09 (0.37–3.17) | 0.028 | 11.28 (2.25–56.7) | 0.003* |
TB pulmonary tuberculosis, OR odds ratio, CI Confidence interval, COR Crude odds ratio, NC Not computed due to small numbers
+ve = positive; -ve = negative
*P ⩽ 0.05 (significance level)