Table 1.

Birth prevalence (/1,000) of Neural Tube Defects (NTD) in Ontario, 1994-2009.

		All Children with Congenital Abnormalities
Birth Year	Number of Births	% Male	%With Mother ≥Wi Years	% VLBW *	# of Infants with NTD	Prevalence of NTD
1994	144,259	57.6	13.4	6.5	365	2.53
1995	140,413	57.2	14	6.9	333	2.37
1996	134,186	57.6	16.3	7	345	2.57
1997	131,676	56.6	15.9	6.1	307	2.33
1998	130,066	56.7	16.8	6.1	316	2.43
1999	128,024	56.8	18.2	6.5	328	2.56
2000	126,260	57.1	19.1	6.4	304	2.41
2001	131,723	57.7	18.9	6.5	325	2.47
2002	128,812	57.7	19.5	6.3	304	2.36
2003	131,481	59.2	20.6	7.5	326	2.48
2004	133,604	60.1	20.7	7.6	287	2.15
2005	134,611	60.3	21	8.7	295	2.19
2006	136,751	60.4	20.8	8.5	264	1.93
2007	141,085	60.2	21.9	8.7	340	2.41
2008	139,855	61.3	23	8.6	324	2.32
2009	139,944	60.6	22.7	9.1	371	2.65
Total	2,152,750	58.5	18.9	7.2	5,145	2.39

* VLBW: very low birth weight.