Table 2.
Influence of various demographic factors on phenotype
| Factors | Categories | Cases (n = 292) |
Control (n = 199) |
Significance | OR (95% CI) |
|---|---|---|---|---|---|
| Gender | Male | 121 (41.4%) | 141 (70.8%) |
χ2 = 41.148, df = 1, P value = 0.000 |
3.44 (2.34–5.05) |
| Female | 171 (58.6%) | 58 (29.1%) | |||
| Age | 11–30 | 132 (45.2%) | 90 (45.2%) | χ2 = 9.954, df = 2, P value = 0.007 | 0.69 (0.53 0.90) |
| 31–50 | 97 (33.2%) | 86 (43.2%) | |||
| 51–70 | 63 (21.6%) | 23 (11.5%) | |||
| Smoking | Smokers | 57 (19.5%) | 15 (7.5%) |
χ2 = 13.580, df = 1, P value = 0.000 |
0.34 (0.18 0.61) |
| Non smokers | 235 (80.4%) | 184 (92.5%) | |||
| Family history of TB | TB present in family history | 137 (46.9%) | 10 (5%) |
χ2 = 99.019, df = 1, P value = 0.000 |
0.06 (0.03–012) |
| No TB history in family | 155 (53.1%) | 189 (95%) |