Congenital Anomalies in Canada:

about

This supplemental statistics table provides additional data for the 38 major congenital anomalies (grouped into 12 higher-level categories) on case-fatality rates, prevalence by type of birth (livebirth or stillbirth) or by diagnosis type (confirmed only or suspected cases).
For detailed information on methodology, please refer to the Technical Appendix tab.
Supplemental congenital anomalies statistics:
Congenital anomalies Case fatality rate per 100 livebirths Stillbirth prevalence per 10,000 total births Livebirth prevalence per 10,000 total births Prevalence (confirmed) per 10,000 total births Prevalence (suspected) per 10,000 total births
Neural Tube Defects 24.13 (22.08-26.33) 1.50 (1.39-1.62) 3.50 (3.33-3.68) 4.44 (4.25-4.64) 0.57 (0.50-0.64)
Spina Bifida without anencephaly
15.37 (13.48-17.45) 0.62 (0.55-0.69) 2.58 (2.44-2.73) 2.69 (2.55-2.85) 0.50 (0.44-0.57)
Anencephaly
86.03 (74.43-98.91) 0.69 (0.61-0.77) 0.41 (0.35-0.47) Suppressed Suppressed
Encephalocele
21.63 (17.07-27.03) 0.20 (0.16-0.25) 0.55 (0.48-0.62) 0.69 (0.62-0.77) 0.06 (0.04-0.09)
Selected genital anomalies 0.65 (0.58-0.74) 0.06 (0.04-0.09) 57.31 (56.62-58.00) 55.01 (54.33-55.69) 2.41 (2.27-2.56)
Cryptorchidism
0.43 (0.35-0.52) Suppressed Suppressed 56.98 (56.02-57.95) 1.88 (1.71-2.07)
Epispadias
0 Suppressed Suppressed 0.72 (0.64-0.80) 0.15 (0.12-0.19)
Hypospadias
0.71 (0.59-0.85) Suppressed Suppressed 48.11 (47.23-49.00) 2.30 (2.11-2.50)
Indeterminate sex
10.26 (7.87-13.16) 0.05 (0.03-0.07) 1.14 (1.05-1.25) 1.08 (0.98-1.18) 0.12 (0.09-0.15)
Selected congenital heart defects 10.88 (10.29-11.50) 1.26 (1.16-1.37) 20.19 (19.78-20.61) 20.39 (19.97-20.80) 1.21 (1.12-1.32)
Transposition of great vessels
11.39 (10.23-12.65) 0.24 (0.20-0.29) 5.35 (5.14-5.57) 5.54 (5.32-5.76) 0.11 (0.08-0.14)
Endocardial cushion defects/AVSD
10.06 (8.88-11.36) 0.22 (0.18-0.26) 4.60 (4.41-4.80) 4.75 (4.55-4.95) 0.07 (0.05-0.10)
Tetralogy of Fallot
8.37 (7.28-9.57) 0.34 (0.29-0.40) 4.36 (4.17-4.56) 4.58 (4.39-4.78) 0.12 (0.09-0.15)
Hypoplastic left heart syndrome
31.36 (28.53-34.40) 0.43 (0.37-0.49) 2.43 (2.29-2.58) 2.82 (2.66-2.97) 0.04 (0.03-0.07)
Coarctation of aorta
6.09 (5.29-6.97) 0.06 (0.04-0.09) 5.94 (5.72-6.17) 5.13 (4.93-5.34) 0.87 (0.79-0.96)
Common Truncus
18.58 (13.65-24.70) 0.07 (0.05-0.10) 0.45 (0.39-0.52) 0.51 (0.45-0.58) 0.02 (0.01-0.03)
Limb deficiency defects 4.95 (4.07-5.97) 0.24 (0.19-0.28) 3.45 (3.28-3.62) 3.56 (3.39-3.73) 0.13 (0.10-0.17)
Oro-facial clefts 3.64 (3.26-4.05) 0.51 (0.45-0.58) 15.84 (15.48-16.21) 16.11 (15.75-16.48) 0.25 (0.20-0.30)
Cleft palate only
3.52 (2.94-4.18) 0.07 (0.05-0.10) 6.31 (6.08-6.54) 6.18 (5.95-6.41) 0.20 (0.16-0.25)
Cleft lip only
1.65 (1.08-2.42) 0.11 (0.08-0.15) 2.72 (2.57-2.87) 2.80 (2.65-2.96) 0.03 (0.01-0.05)
Cleft lip with cleft palate
4.37 (3.75-5.06) 0.33 (0.28-0.39) 6.82 (6.58-7.06) 7.13 (6.89-7.38) 0.02 (0.01-0.03)
Diaphragmatic hernia 22.90 (20.68-25.29) 0.31 (0.26-0.36) 2.88 (2.72-3.04) 3.09 (2.93-3.25) 0.10 (0.07-0.13)
Selected abdominal wall defects 7.13 (6.22-8.12) 0.55 (0.49-0.63) 5.01 (4.80-5.22) 5.49 (5.27-5.70) 0.08 (0.05-0.11)
Omphalocele/Exomphalos
11.76 (9.98-13.75) 0.36 (0.30-0.42) 1.80 (1.68-1.93) 2.09 (1.96-2.23) 0.07 (0.05-0.10)
Gastroschisis
3.91 (3.06-4.92) 0.21 (0.17-0.26) 3.24 (3.08-3.41) 3.44 (3.28-3.62) 0.01 (0.00-0.03)
Selected gastrointestinal defects 5.39 (4.90-5.91) 0.15 (0.12-0.19) 14.26 (13.92-14.61) 12.20 (11.88-12.52) 2.55 (2.41-2.70)
Oesophageal atresia/stenosis, tracheoesophageal fistula
9.77 (8.35-11.36) 0.04 (0.02-0.06) 2.84 (2.69-3.00) 2.59 (2.45-2.75) 0.45 (0.39-0.52)
Small intestine absence/atresia/stenosis
5.48 (4.57-6.52) 0.06 (0.04-0.09) 4.07 (3.89-4.26) 3.78 (3.61-3.96) 0.38 (0.33-0.44)
Ano-rectal absence/atresia/stenosis
6.84 (5.76-8.06) 0.05 (0.03-0.08) 3.54 (3.37-3.71) 3.42 (3.25-3.59) 0.20 (0.16-0.24)
Hirschsprung disease
1.24 (0.80-1.83) 0 3.52 (3.35-3.69) 2.11 (1.98-2.24) 1.41 (1.30-1.52)
Atresia of bile ducts
6.75 (4.82-9.19) 0 1.05 (0.96-1.14) 0.88 (0.79-0.97) 0.17 (0.13-0.21)
Selected chromosomal defects 15.58 (14.75-16.44) 4.55 (4.36-4.75) 15.14 (14.79-15.50) 16.96 (16.59-17.34) 2.75 (2.60-2.90)
Down syndrome
8.81 (8.14-9.53) 2.39 (2.25-2.53) 12.68 (12.35-13.01) 12.86 (12.53-13.19) 2.20 (2.07-2.34)
Trisomy 13 (Patau)
65.98 (57.60-75.23) 0.49 (0.43-0.56) 0.62 (0.55-0.69) 1.02 (0.93-1.12) 0.09 (0.06-0.12)
Trisomy 18 (Edwards)
66.95 (61.06-73.26) 1.39 (1.29-1.50) 1.29 (1.19-1.40) 2.47 (2.33-2.62) 0.22 (0.18-0.27)
Turner syndrome
5.70 (3.57-8.63) 0.62 (0.52-0.73) 1.31 (1.17-1.47) 1.42 (1.27-1.58) 0.51 (0.43-0.62)
Other central nervous system defects 17.92 (16.34-19.61) 1.06 (0.97-1.16) 4.76 (4.56-4.96) 5.42 (5.21-5.64) 0.42 (0.37-0.49)
Hydrocephaly
14.35 (12.86-15.96) 0.67 (0.60-0.75) 4.25 (4.07-4.44) 4.55 (4.36-4.75) 0.39 (0.33-0.45)
Arhinencephaly/Holoprosencephaly
45.42 (38.19-53.64) 0.39 (0.34-0.46) 0.56 (0.49-0.63) 0.92 (0.83-1.01) 0.04 (0.02-0.06)
Selected urinary tract defects 8.22 (7.59-8.89) 1.04 (0.95-1.14) 12.06 (11.74-12.38) 12.13 (11.81-12.45) 1.03 (0.94-1.13)
Renal agenesis
8.02 (7.03-9.11) 0.55 (0.49-0.63) 4.56 (4.37-4.76) 4.72 (4.53-4.93) 0.39 (0.34-0.46)
Cystic kidney
9.62 (8.67-10.65) 0.44 (0.38-0.50) 6.28 (6.05-6.51) 6.25 (6.02-6.48) 0.48 (0.42-0.55)
Bladder and cloacal exstrophy
7.27 (3.75-12.70) 0.03 (0.02-0.05) 0.29 (0.25-0.35) 0.32 (0.27-0.37) 0.01 (0.00-0.03)
Lower urinary tract obstruction
5.27 (3.95-6.89) 0.05 (0.04-0.08) 1.50 (1.39-1.62) 1.42 (1.31-1.53) 0.15 (0.11-0.19)
Selected sense organ defects 5.40 (4.58-6.32) 0.05 (0.04-0.08) 4.37 (4.18-4.56) 3.80 (3.63-3.99) 0.62 (0.55-0.70)
Anophthalmos/Microphthalmos
14.84 (11.69-18.58) 0.04 (0.03-0.07) 0.81 (0.73-0.89) 0.81 (0.73-0.90) 0.04 (0.02-0.06)
Anotia/Microtia
2.34 (1.41-3.65) Suppressed Suppressed 1.31 (1.21-1.42) 0.01 (0.00-0.03)
Choanal Atresia
4.30 (3.34-5.45) 0.01 (0.00-0.03) 2.33 (2.19-2.47) 1.77 (1.65-1.89) 0.57 (0.51-0.65)

Did you find what you were looking for?

What was wrong?

(Don’t include any personal information. Note that you will not receive a reply.)
Maximum 300 characters

Thank you for your feedback

Report a problem or mistake on this page
Date modified:
2025-03-07