Table 5 Odds of LTBI adjusted for age, education, outside TB contact, length of service and department

Age (years)

0.002

 less than 35

ref

 35–49

1.15 (0.76, 1.75)

 50 or more

0.48 (0.26, 0.89)

Education Level

0.139

 Primary or less

ref

 Secondary

0.64 (0.41, 0.99)

 College/University

0.70 (0.38, 1.27)

Known outside TB contact

0.313

 No TB contact

ref

 TB contact

0.80 (0.53, 1.23)

Length of Service (5 year increase)

1.17 (1.04, 1.31)

0.007

Department

0.001

 All Non-Clinical

ref

 Obstetrics and Gynecology

1.07 (0.59, 1.91)

 Pediatrics

1.02 (0.55, 1.89)

 Surgery

2.37 (1.27, 4.44)

 Medicine

0.56 (0.31, 0.98)

 Clinical Labs and Pathology

1.57 (0.78, 3.16)

 Emergency and Critical Care

1.82 (0.75, 4.43)

 Other Clinical

0.95 (0.52, 1.74)