Table 2 Univariate analysis of risk factors for Mycobacterium tuberculosis infection, according to the selected definition of latent tuberculosis infection and tuberculin skin testing conversion.
| Variable | TST conversion HR (95% CI) | p Value |
|---|---|---|
| Sex | ||
| Women* | 1 | |
| Men | 1.02 (0.94 to 1.11) | 0.64 |
| Duration of employment (years) | ||
| <1* | 1 | |
| ⩾1 | 2.24 (0.14 to 34.98) | 0.564 |
| Work setting | ||
| Community* | 1 | |
| Hospital | 1.35 (0.93 to 1.96) | 0.114 |
| Workplace | ||
| Laboratory* | 1 | |
| Administrative | 0.19 (0.04 to 0.83) | 0.027 |
| Outpatient | 0.45 (0.32 to 0.63) | 0.000 |
| Surgery | 0.68 (0.50 to 0.94) | 0.020 |
| Medicine | 0.42 (0.32 to 0.54) | 0.000 |
| Infectious diseases | 0.79 (0.67 to 0.93) | 0.005 |
| Occupation (work activity) | ||
| Nursing workers* | 1 | |
| Clerical workers | 0.67 (0.36 to 1.25) | 0.208 |
| Medical workers | 1.10 (1.02 to 1.17) | 0.011 |
| Social workers | 0.42 (0.25 to 0.70) | 0.000 |
| Change of occupation or setting | ||
| No* | 1 | |
| Yes | 0.86 (0.34 to 2.19) | 0.753 |
| Age (years) | 1.02 (1.00 to 1.05) | 0.074 |
TST, tuberculin skin testing.
*Reference category.