Bivariable and multiple logistic regression analyses of predictors for having low HIV knowledge^a among HIV-infected TB patients.

<p>TB, tuberculosis; HIV, human immunodeficiency virus; OR, odds ratio; AOR, adjusted odds ratio; CI, confidence interval; variables for which p≤0.20 in bivariable analyses and potential confounders were included in multiple logistic regression analysis.</p>a<p>HIV knowledge score<5; HIV knowledge score is a summary score of the number of HIV knowledge questions (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0006360#pone-0006360-t002" target="_blank">table 2</a> - each question is worth 1 point) that a patient correctly answered.</p>b<p>Compared with being treated in Bangkok.</p>c<p>Patients who had extra-pulmonary TB other than peripheral lymphatic TB or had all of the following characteristics: self-reported weight loss >10% of body weight, coughing up blood, difficulty breathing in past 4 weeks before TB diagnosis, and cavitary TB or >1/3 involvement of either lung at the initial evaluation.