Predictors of hospitalization of tuberculosis patients in Montreal, Canada: a retrospective cohort study

BMC Infectious Diseases

Table 2 Clinical characteristics of persons with TB notified to Montreal Public Health between January 1996 -- May 2007, N = 1852

	Number (%) of active TB patients^a
	N	%
Mycobacteriology and disease site
Pulmonary, Smear+	619	33.4
Pulmonary, Smear-	625	33.7
Extra-pulmonary	563	30.4
Clinical and radiographic features of TB disease
Miliary TB	35	1.9
Cavitary TB	336	18.1
Any pulmonary TB-related symptoms^b	1530	82.6
Any systemic TB-related symptoms^c	1018	55.0
Drug resistance
Multi- and poly-TB drug resistant	33	1.8
Mono-TB drug resistant	122	6.6
Pan-sensitive	1664	89.8
Therapy supervision, ever directly-observed (DOT)	807	43.5
Treatment duration in days, median (min-max)	208 (183–295)
Treatment outcome
Cured	1518	82.0
Died	127	6.9
Defaulted/failed	34	1.8
Moved	69	3.7

^aMissing data: TB diagnosis (n = 45), drug resistance (n = 33), treatment outcome (n = 104)
^bPulmonary TB-related symptoms: cough, hemoptysis, and abnormal chest x-ray
^cSystemic TB-related symptoms: weight loss, fever, fatigue, night sweats

ISSN: 1471-2334