Table 3.

Determinants ¹ associated with correct answers, estimated by multivariable regression

Correct answers	Determinants	OR (95% CI)	p-value
TB is an infectious disease caused by various strains of Mycobacteria genus, mainly M. tuberculosis	Increasing age	1.50 (1.08 - 2.09)	0.02
TB does not affect only the lungs	To be a medical student	21.81 (2.89-164.38)	0.003
The most frequent outcome of the M. tuberculosis infection is the latent TB infection	To be a medical student	4.70 (1.83-12.04)	0.001
The TB vaccine is prepared with the Bacillus Calmette-Guérin	To be a medical student	13.43 (4.84-37.22)	0.001
TST is not a vaccine	Increasing age	1.10 (1.02-1.20)	0.02
TST is not a laboratory test to detect M. tuberculosis in the sputum	To be a medical student	2.19 (1.01-4.75)	0.047
TST is not a drug for M. tuberculosis infection	To be a medical student	2.90 (1.11-7.59)	0.03

¹The investigated determinants are: age, gender, degree course (medical vs. nursing) and tuberculin skin test (TST).