Table 1.

Distribution of demographic and potential risk factors for recurrent tuberculosis in a national TB cohort of 8084 cases, Finland 1995–2013

Variable	TB recurrence (n = 50)	No TB recurrence (n = 8034)	All (n = 8084)
Median age, years	51, 5	66	66
Gender female n (%)	11 (22%)	3457 (43%)	3468 (42.9%)
Foreign origin n (%)	9 (18%)	1066 (13.6%)a	1074 (13.6%)b
Pulmonary site of disease n (%)	44 (88%)c	5599 (69.2%)	5605 (69.3%)
Culture positive n (%)	48 (96%)c	6631 (82.5%)	6680 (82.6%)
Prior to year 2007 n (%)	45 (90%)c	5762 (71.7%)	5807 (71.8%)

^a Origin known for 7862 cases

^b Origin known for 7912 cases

^c Data of the first episode