Table 1.
Risk factors associated with cluster and non-cluster cases among 95 patients with tuberculosis in Iran (PGRS-RFLP)
| Variable | Cluster group 73 (76.8%) | Non-cluster group 22 (23.2%) | Odd ratio (95% CI) | P-Value | |
|---|---|---|---|---|---|
| Age | Age < 45 yr Age ≥ 45 yr |
43 (45.3%) 30 (31.6%) |
5 (5.3%) 17 (17.9%) |
4.87 (1.62-14.65) | 0.0035 |
| Gender | Male Female |
35 (36.8%) 38 (40%) |
10 (10.5%) 12 (12.6%) |
0.90 (0.35-2.36) | 0.5162 |
| Type of patient | New case Previous treatment |
68 (71.6%) 5 (5.3%) |
15 (15.8%) 7 (7.4%) |
6.35 (1.78-22.75) | 0.0054 |
| Nationality | Iranian Immigrant (Afghans) |
67 (70.5%) 6 (6.3%) |
21 (22.1%) 1 (1.1%) |
0.53 (0.06-4.67) | 0.4864 |
| Inhabitant | Urban Rural |
42 (44.3%) 31 (32.6%) |
14 (14.7%) 8 (8.4%) |
0.77 (0.29-2.07) | 0.8052 |
| Close contact with TB patient | Yes No |
15 (15.7%) 58 (61.1%) |
1 (1.1%) 21 (22.1%) |
5.43 (2.68-43.68) | 0.0394 |
| HIV infection | Yes No |
1 (1.1%) 72 (75.7%) |
2 (2.1%) 20 (21.1%) |
0.14 (0.01-1.60) | 0.1330 |
| Sizes of mantoux test | <15mm ≥15mm |
34 (35.8%) 39 (41.1%) |
9 (9.5%) 13 (13.7%) |
0.79 (0.30-2.08) | 0.8075 |
| Degree of sputum smear | ≤1+ ≥2+ |
27 (28.4%) 46 (48.5%) |
14 (14.7%) 8 (8.4%) |
2.85 (1.02-7.98) | 0.0139 |