Skip to main content
. 2016 May 5;11(5):e0154803. doi: 10.1371/journal.pone.0154803

Table 2. Risk factors associated with positive TST and QFT.

Parameters TST >10mm QFT-Positive
N OR 95%CI P value N OR 95%CI P value
Gender 1.021 0.814–1.279 0.859 0.952 0.747–1.212 0.688
Male 349 132
Female 743 267
Age group
19–29 176 2.902 1.107–7.606 0.030 141 1.172 0.521–2.641 0.701
29–39 196 2.940 1.123–7.694 0.028 149 1.125 0.500–2.530 0.776
39–49 90 2.673 1.005–7.114 0.049 69 1.044 0.454–2.404 0.919
49–59 35 2.234 0.803–6.215 0.124 32 1.113 0.460–2.696 0.812
>60 6 REF 8 REF
Profession
Physician 11 0.583 0.233–1.461 0.250 9 0.613 0.231–1.630 0.327
Nurses 260 0.772 0.411–1.452 0.423 204 0.754 0.387–1.469 0.754
Allied Health 79 0.818 0.419–1.598 0.557 42 0.486 0.235–1.007 0.052
Support Services 107 0.777 0.404–1.496 0.450 111 1.117 0.563–2.217 0.752
Administration 30 1.641 0.744–3.618 0.220 20 1.054 0.453–2.448 0.903
Researchers 16 REF 13 REF
Occupational Risk
Low 136 REF 127 REF
Medium 96 0.898 0.653–1.235 0.507 58 0.507 0.355–0.724 <0.001
High 271 0.837 0.651–1.076 0.165 214 0.666 0.513–0.865 0.002
Years of work
<2 Years 33 1.306 0.655–2.602 0.448 26 1.306 0.655–2.602 0.448
2–5 years 194 1.536 0.878–2.688 0.133 163 1.536 0.878–2.688 0.133
6–10 years 164 1.264 0.716–2.230 0.419 120 1.264 0.716–2.230 0.419
10–20 years 95 1.366 0.755–2.473 0.303 72 1.366 0.755–2.473 0.303
>20 years 17 REF 17 REF
BCG Vaccination 449 1.039 0.664–1.625 0.028 356 1.364 0.866–2.146 0.179
Geographical Origin
American 28 1.236 0.760–2.011 0.394 13 0.481 0.260–0.889 0.019
African 18 0.671 0.388–1.162 0.154 12 0.444 0.235–0.837 0.012
European 37 3.201 1.888–5.427 <0.001 32 2.525 1.501–4.246 <0.001
Eastern Mediterranean 117 1.020 0.784–1.328 0.881 60 0.466 0.340–0.637 <0.001
South East Asian 39 0.598 0.408–0.878 0.009 33 0.531 0.354–0.797 0.002
Western Pacific 264 REF 249 REF