Table I.

TB disease among children in Greenland, 1990 to 2010, stratified by period

Perioda	TB cases	IRRb	95% CIc	pd	IRe
1990–1994	23	0.47	(0.28–0.75)	0.002	29.0 (18.7,42.5)
1995–1999	64	1 (Ref.)	–	–	75.8 (58.7,95.9)
2000–2006	93	1.05	(0.76–1.45)	0.78	81.6 (66.1,99.3)
2007–2010	29	0.62	(0.39–0.95)	0.03	49.0 (33.3,69.1)
Total	209			0.0004

^aAdjusted for sex, vaccination period and age with splines.

^bIncidence rate ratios.

^cConfidence intervals.

^dTest for homogeneity.

^eIncidence rates per 100,000 person years.