Choanal atresia bilateral, ICBDSR Report 2024
Programs grouped by geography and decreasing prevalence, data 2015-2020 (some programs with fewer years), prevalence per 10,000 births Legend: Hosp, hospital-based; Pop, population-based; T-incl, terminations of pregnancy included (T-not, not included)
	country	Program	Ascertainment	Births	Cases	Prevalence	95% CI	Prevalence Chart
Middle East & North Africa
	Iran	Iran TRoCA	Hosp, T-incl	37,552	10	2.7	1.3 - 4.9
	Israel	Israel IBDSP	Hosp, T-not	203,574	12	0.6	0.3 - 1
North America
	Canada	Canada National CCASS	Pop, Other	1,717,113	378	2.2	2 - 2.4
	Canada	Canada Alberta ACASS	Pop, T-incl	317,752	40	1.3	0.9 - 1.7
	United States	USA Texas BDES	Pop, T-incl	1,946,187	124	0.6	0.5 - 0.8
	United States	USA Iowa IRCID	Pop, T-not	155,651	5	0.3	0.1 - 0.7
Europe & Central Asia
	Malta	Malta MCAR	Pop, T-not	22,377	4	1.8	0.5 - 4.6
	Germany	Germany Saxony Anhalt	Pop, T-incl	103,943	13	1.3	0.7 - 2.1
	France	France Brittany	Pop, T-incl	194,447	23	1.2	0.7 - 1.8
	Italy	Italy Veneto	Pop, T-incl	147,708	15	1.0	0.6 - 1.7
	Finland	Finland	Pop, T-incl	254,007	21	0.8	0.5 - 1.3
	Sweden	Sweden	Pop, T-incl	701,879	56	0.8	0.6 - 1
	United Kingdom	England NCARDRS	Pop, T-incl	2,036,067	145	0.7	0.6 - 0.8
	France	France REMERA	Pop, T-incl	337,271	23	0.7	0.4 - 1
	Czechia	Czech Republic	Pop, T-incl	339,034	23	0.7	0.4 - 1
	Netherlands	Northern Netherlands	Pop, T-incl	91,261	5	0.5	0.2 - 1.3
	Italy	Italy Campania BDRCam	Pop, T-incl	151,828	8	0.5	0.2 - 1
	Italy	Italy Emilia Romagna IMER	Pop, T-incl	199,036	8	0.4	0.2 - 0.8
	Slovakia	Slovak Republic	Pop, T-not	343,485	13	0.4	0.2 - 0.6
	Italy	Italy Tuscany RTDC	Pop, T-incl	146,815	2	0.1	0 - 0.5
	Ukraine	Ukraine OMNI Net	Pop, T-incl	130,244	1	0.1	0 - 0.4
East Asia & Pacific
	New Zealand	New Zealand	Pop, T-not	176,226	19	1.1	0.6 - 1.7
Latin America & Caribbean
	Costa Rica	Costa Rica CREC	Pop, T-not	403,647	34	0.8	0.6 - 1.2
	Mexico	Mexico RYVEMCE	Hosp, T-not	26,648	1	0.4	0 - 2.1
-	South America	South America ECLAMC	Hosp, T-not	330,135	8	0.2	0.1 - 0.5
	Argentina	Argentina RENAC	Hosp, T-not	1,689,069	37	0.2	0.2 - 0.3
	Colombia	Colombia Cali	Pop, T-incl	55,537	1	0.2	0 - 1
	Colombia	Colombia Bogotá	Pop, T-incl	233,100	3	0.1	0 - 0.4
	Chile	Chile RENACH	Hosp, T-incl	372,524	4	0.1	0 - 0.3