Table 1. Number and percentage of the 61 congenital anomalies of interest according to reporting and data collection patterns.
| ICD-10 codec | Data collected at delivery only | Data collected at one month of age only |
Data collected both at delivery and at one month of age | ||||||||||||||||
| Spontaneous abortion | Medical termination of pregnancies | Stillbirth | Live birth | Live birth | Reported at delivery only | Reported at one month only | Reported either at delivery or at one month |
Reported both at delivery and at one month | |||||||||||
| N | 1,010 | 330 | 291 | 705 | 44 | 99445 | |||||||||||||
| Anencephaly | Q00 | 3 | 0.297 | 12 | 3.636 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 12 | 0.012 | 5 | 0.005 | 16 | 0.016 | 1 | 0.001 |
| Encephalocele | Q01 | 1 | 0.099 | 1 | 0.303 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 10 | 0.010 | 12 | 0.012 | 19 | 0.019 | 3 | 0.003 |
| Microcephaly | Q02 | 0 | 0.000 | 1 | 0.303 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 10 | 0.010 | 28 | 0.028 | 37 | 0.037 | 1 | 0.001 |
| Hydrocephaly | Q03 | 1 | 0.099 | 2 | 0.606 | 2 | 0.687 | 3 | 0.426 | 1 | 2.273 | 34 | 0.034 | 63 | 0.063 | 80 | 0.080 | 17 | 0.017 |
| Craniotabes | P96.3 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 35 | 0.035 | 35 | 0.035 | 69 | 0.069 | 1 | 0.001 |
| Holoprosencephaly | Q04.2 | 2 | 0.198 | 7 | 2.121 | 1 | 0.344 | 1 | 0.142 | 0 | 0.000 | 12 | 0.012 | 27 | 0.027 | 32 | 0.032 | 7 | 0.007 |
| Agenesis of corpus callosum | Q04.0 | 0 | 0.000 | 2 | 0.606 | 1 | 0.344 | 0 | 0.000 | 1 | 2.273 | 13 | 0.013 | 15 | 0.015 | 20 | 0.020 | 8 | 0.008 |
| Ablepharon | Q10.3 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 5 | 0.005 | 8 | 0.008 | 13 | 0.013 | 0 | 0.000 |
| Anophthalmos/microphthalmos | Q11.0–Q11.2 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 15 | 0.015 | 11 | 0.011 | 21 | 0.021 | 5 | 0.005 |
| Congenital cataract | Q12.0 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 17 | 0.017 | 13 | 0.013 | 30 | 0.030 | 0 | 0.000 |
| Microtia | Q17.2 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 19 | 0.019 | 24 | 0.024 | 40 | 0.040 | 3 | 0.003 |
| Congenital aural atresia | Q16.1 | 1 | 0.099 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 32 | 0.032 | 16 | 0.016 | 39 | 0.039 | 9 | 0.009 |
| Cryptotia | Q17.8 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 19 | 0.019 | 19 | 0.019 | 33 | 0.033 | 5 | 0.005 |
| Low set ears | Q17.4 | 3 | 0.297 | 2 | 0.606 | 3 | 1.031 | 8 | 1.135 | 0 | 0.000 | 54 | 0.054 | 36 | 0.036 | 78 | 0.078 | 12 | 0.012 |
| Cleft lip | Q36 | 1 | 0.099 | 3 | 0.909 | 1 | 0.344 | 1 | 0.142 | 0 | 0.000 | 63 | 0.063 | 62 | 0.062 | 76 | 0.076 | 49 | 0.049 |
| Cleft palate | Q35 | 1 | 0.099 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 42 | 0.042 | 41 | 0.041 | 52 | 0.052 | 31 | 0.031 |
| Cleft lip and palate | Q37.0–Q37.5 | 1 | 0.099 | 0 | 0.000 | 2 | 0.687 | 5 | 0.709 | 0 | 0.000 | 107 | 0.108 | 101 | 0.102 | 117 | 0.118 | 91 | 0.092 |
| not classified as cleft lip, cleft palate or cleft lip and palatea |
13 | 0.013 | |||||||||||||||||
| Facial cleft | Q37.8 Q37.9 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 7 | 0.007 | 4 | 0.004 | 9 | 0.009 | 2 | 0.002 |
| Natal teeth | K00.6 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 46 | 0.046 | 32 | 0.032 | 64 | 0.064 | 14 | 0.014 |
| Diaphragmatic hernia | Q79.0 | 0 | 0.000 | 0 | 0.000 | 1 | 0.344 | 5 | 0.709 | 0 | 0.000 | 28 | 0.028 | 22 | 0.022 | 37 | 0.037 | 13 | 0.013 |
| Intralobar sequestration | Q33.2 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.001 | 4 | 0.004 | 5 | 0.005 | 0 | 0.000 |
| Congenital cystic adenomatoid malformation | Q33.0 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 9 | 0.009 | 11 | 0.011 | 14 | 0.014 | 6 | 0.006 |
| Pulmonary hypoplasia | Q33.6 | 0 | 0.000 | 0 | 0.000 | 1 | 0.344 | 6 | 0.851 | 0 | 0.000 | 17 | 0.017 | 19 | 0.019 | 27 | 0.027 | 9 | 0.009 |
| Congenital heart disease | Q20–Q28 | 3 | 0.297 | 3 | 0.909 | 4 | 1.375 | 33 | 4.681 | 0 | 0.000 | 704 | 0.708 | 978 | 0.983 | 1187 | 1.194 | 495 | 0.498 |
| Cardiac arrhythmia | I44, I45, I47, I48, I49 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 2 | 0.284 | 0 | 0.000 | 80 | 0.080 | 48 | 0.048 | 104 | 0.105 | 24 | 0.024 |
| Omphalocele | Q79.2 | 2 | 0.198 | 4 | 1.212 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 36 | 0.036 | 265 | 0.266 | 282 | 0.284 | 19 | 0.019 |
| Gastroschisis | Q79.3 | 4 | 0.396 | 4 | 1.212 | 1 | 0.344 | 2 | 0.284 | 0 | 0.000 | 9 | 0.009 | 5 | 0.005 | 10 | 0.010 | 4 | 0.004 |
| Esophageal atresia with or without fistula |
Q39.0 Q39.1 | 0 | 0.000 | 0 | 0.000 | 1 | 0.344 | 4 | 0.567 | 0 | 0.000 | 14 | 0.014 | 14 | 0.014 | 18 | 0.018 | 10 | 0.010 |
| Duodenal atresia/stenosis | Q41.0 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 17 | 0.017 | 13 | 0.013 | 19 | 0.019 | 11 | 0.011 |
| Intestinal atresia/stenosis | Q41.1–Q41.9 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 16 | 0.016 | 10 | 0.010 | 18 | 0.018 | 8 | 0.008 |
| Anorectal atresia/stenosis | Q42.0–Q42.9 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 38 | 0.038 | 36 | 0.036 | 45 | 0.045 | 29 | 0.029 |
| Inguinal hernia | K40.2 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 29 | 0.029 | 98 | 0.099 | 113 | 0.114 | 14 | 0.014 |
| Congenital hydronephrosis | Q62.0 | 0 | 0.000 | 1 | 0.303 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 145 | 0.146 | 163 | 0.164 | 216 | 0.217 | 92 | 0.093 |
| Cystic kidney | Q61 | 0 | 0.000 | 2 | 0.606 | 0 | 0.000 | 4 | 0.567 | 0 | 0.000 | 23 | 0.023 | 22 | 0.022 | 31 | 0.031 | 14 | 0.014 |
| Renal agenesis | Q60.2 | 2 | 0.198 | 1 | 0.303 | 2 | 0.687 | 0 | 0.000 | 0 | 0.000 | 5 | 0.005 | 6 | 0.006 | 8 | 0.008 | 3 | 0.003 |
| Hypospadias | Q54 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 46 | 0.046 | 50 | 0.050 | 65 | 0.065 | 31 | 0.031 |
| Undescended testis/cryptorchidism | Q53 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 2 | 0.284 | 0 | 0.000 | 213 | 0.214 | 161 | 0.162 | 306 | 0.308 | 68 | 0.068 |
| Bladder exstrophy | Q64.1 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 3 | 0.003 | 2 | 0.002 | 3 | 0.003 | 2 | 0.002 |
| Enlarged clitoris | N90.8 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 6 | 0.006 | 6 | 0.006 | 12 | 0.012 | 0 | 0.000 |
| Abnormal Vaginal Opening | Q52.4 | 1 | 0.099 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.001 | 1 | 0.001 | 2 | 0.002 | 0 | 0.000 |
| Indeterminate sex | Q56 | 1 | 0.099 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 6 | 0.006 | 2 | 0.002 | 7 | 0.007 | 1 | 0.001 |
| Polydactyly of fingers | Q69 Q70.4 | 0 | 0.000 | 3 | 0.909 | 2 | 0.687 | 0 | 0.000 | 0 | 0.000 | 98 | 0.099 | 82 | 0.082 | 106 | 0.107 | 74 | 0.074 |
| Syndactyly of fingers | Q70 | 0 | 0.000 | 2 | 0.606 | 0 | 0.000 | 4 | 0.567 | 0 | 0.000 | 34 | 0.034 | 25 | 0.025 | 41 | 0.041 | 18 | 0.018 |
| Cleft hand | Q71.6 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 4 | 0.004 | 4 | 0.004 | 5 | 0.005 | 3 | 0.003 |
| Polydactyly of toes | Q69 Q70.4 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 67 | 0.067 | 57 | 0.057 | 88 | 0.088 | 36 | 0.036 |
| Syndactyly of toes | Q70 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 3 | 0.426 | 0 | 0.000 | 70 | 0.070 | 73 | 0.073 | 101 | 0.102 | 42 | 0.042 |
| Cleft foot | Q72.7 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 6 | 0.006 | 4 | 0.004 | 7 | 0.007 | 3 | 0.003 |
| Hemangioma | Q82.5 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 186 | 0.187 | 633 | 0.637 | 756 | 0.760 | 63 | 0.063 |
| Epidermolysis bullosa | Q82.3 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 9 | 0.009 | 7 | 0.007 | 14 | 0.014 | 2 | 0.002 |
| Myelomeningocele/Spina bifida | Q05 | 0 | 0.000 | 1 | 0.303 | 1 | 0.344 | 1 | 0.142 | 0 | 0.000 | 21 | 0.021 | 23 | 0.023 | 33 | 0.033 | 11 | 0.011 |
| Down syndrome | Q90 | 0 | 0.000 | 9 | 2.727 | 0 | 0.000 | 6 | 0.851 | 0 | 0.000 | 92 | 0.093 | 129 | 0.130 | 138 | 0.139 | 83 | 0.083 |
| Trisomy 18 | Q91.0–Q91.3 | 0 | 0.000 | 5 | 1.515 | 7 | 2.405 | 6 | 0.851 | 0 | 0.000 | 19 | 0.019 | 23 | 0.023 | 27 | 0.027 | 15 | 0.015 |
| Trisomy 13 | Q91.4–Q91.7 | 2 | 0.198 | 0 | 0.000 | 1 | 0.344 | 0 | 0.000 | 0 | 0.000 | 3 | 0.003 | 5 | 0.005 | 5 | 0.005 | 3 | 0.003 |
| Turner syndrome | Q96 | 1 | 0.099 | 1 | 0.303 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 2 | 0.002 | 3 | 0.003 | 4 | 0.004 | 1 | 0.001 |
| Thanatophoric dysplasia | Q77.1 | 0 | 0.000 | 2 | 0.606 | 0 | 0.000 | 1 | 0.142 | 0 | 0.000 | 2 | 0.002 | 1 | 0.001 | 3 | 0.003 | 0 | 0.000 |
| Acrodysostosis, not specificied | Q77.4 | 0 | 0.000 | 0 | 0.000 | 1 | 0.344 | 0 | 0.000 | 0 | 0.000 | 4 | 0.004 | 3 | 0.003 | 5 | 0.005 | 2 | 0.002 |
| Developmental dysplasia of the hipb | Q65.0–Q65.6 | 0 | 0.000 | 14 | 0.014 | 14 | 0.014 | ||||||||||||
| Congenital multiple arthrogryposis | Q74.3 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 5 | 0.005 | 4 | 0.004 | 8 | 0.008 | 1 | 0.001 |
| Floppy infant | P94.2 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 11 | 0.011 | 8 | 0.008 | 16 | 0.016 | 3 | 0.003 |
| Conjoined twins | Q89.4 | 1 | 0.099 | 1 | 0.303 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 2 | 0.002 | 2 | 0.002 | 0 | 0.000 |
| Amniotic band constriction | Q79.8 | 3 | 0.297 | 4 | 1.212 | 0 | 0.000 | 0 | 0.000 | 0 | 0.000 | 2 | 0.002 | 2 | 0.002 | 2 | 0.002 | 2 | 0.002 |
ICD-10, International Statistical Classification of Diseases and Related Health Problems, 10th revision.
Each congenital anomaly is listed with its number of cases and percentage per data collection patterns.
a“not classified as cleft lip, cleft palate or cleft lip and palate” included the different reporting case from at delivery and at one month of age within cleft lip, cleft palate or cleft lip and palate.
bDevelopmental dysplasia of the hip was included in the transcription form at 1 month of age only.
cTranscriptions of both the ICD-10 code and congenital anomaly name in medical records were collected at the data collection phase.