Table 3.

Epidemiological data on children who have received a tracheostomy between 1985 and 1994, between 1995 and 2004, and between 2005 and 2014.

	Decade n (%)			p-Valuea
	1985–1994	1995–2004	2005–2014	1985–1994 vs. 1995–2004	1985–1994 vs. 2005–2014	1995–2004 vs. 2005–2014
	n = 480	n = 1150	n = 4303
<1 year of age	198 (41.3)	725 (63.0)	1862 (43.3)	<0.001b	0.396	<0.001b
Male	95 (19.8)	601 (52.3)	2499 (58.1)	<0.001b	<0.001b	<0.001b

^aChi-square test.

^bp < 0.05.