Factors associated with NC2 among healthcare students from Salvador, Bahia, Brazil, 2004–2008
| Crude OR (CI 95%) | Adjusted OR (CI 95%) | OR difference (%) | p Value† | |
| Model 1: income ≤5 MW* | ||||
| Enrolled in a public university | 0.80 (0.32 to 2.30) | 0.84 (0.33 to 2.43) | 5.0 | 0.725451 |
| Male gender | 1.86 (0.84 to 4.05) | 1.85 (0.83 to 4.02) | −0.5 | 0.125426 |
| Model 2: income >5 MW | ||||
| Enrolled in at a public university | 2.34 (1.66 to 3.32) | 2.39 (1.69 to 3.39) | 2.1 | 8.16×10−7 |
| Male gender | 1.27 (0.90 to 1.78) | 1.34 (0.94 to 1.90) | 5.5 | 0.099 |
↵* MW, minimum wage (>5 corresponds to the half top of the economic classification system adopted by Brazilian government agencies17).
↵† Significance of association between each variable and NC2 (failure to attend the first or second tuberculin skin test reading) in the multivariate multiple regression model.