Table 1.
Comparison of TB prevalence between the past (1991-92) and present (2006-07) studies in the Sahariya and Bhil tribes
| Year of study | Villages sampled | Smear examined | Sputum positive Cases (1+, 2+, 3+) | Prevalence of smear positive pulmonary TB (no. of positive cases/population size × 1000) | P value |
|---|---|---|---|---|---|
| Previous study during the year 1991‐1992(6) | 37 | 436 | 96 | 0.274 | <0.005 |
| Present study during the year 2006-07 | 30 | 763 | 227 | 0.454 | |
| Age group | |||||
| 0‐14 | 05 | 01 | 0.002 | ||
| 15‐24 | 99 | 35 | 0.07 | ||
| 25‐34 | 232 | 72 | 0.144 | ||
| 35‐44 | 217 | 59 | 0.118 | <0.005 | |
| 45‐54 | 138 | 39 | 0.078 | ||
| 55‐64 | 64 | 19 | 0.038 | ||
| >65 | 08 | 02 | 0.004 | ||
| Sex | |||||
| Male | 463 | 191 | 0.382 | ||
| Female | 300 | 71 | 0.142 | <0.005 | |
| Bhil | 05 | 169 | 4 | 0.04 |