Table 1

Percentage of women receiving antenatal ultrasound

Author(s)Study locationStudy typeStudy population# of women in study# of women who received antenatal ultrasound (%)
Africa
de Paul Djientcheu et al22CameroonRetrospective descriptive observational studyInstitutional; patients with NTDs admitted to neonatology unit6927 (39.1%)
Abdur-Rahman et al23NigeriaRetrospective descriptive observational studyInstitutional; patients with abdominal wall defects at a tertiary health centre in the North-Central geopolitical zone of Nigeria5651 (91.1%)
Adeleye et al 24NigeriaProspective cross-sectional studyInstitutional; patients presenting with major CNS anomalies at tertiary hospital5443 (79.6%)
Adeleye and Joel-Medewase25NigeriaRetrospective cross-sectional surveyInstitutional; patients with CNS defects at a neurosurgeon’s practice15191 (60.3%)
Bankole et al26NigeriaProspective descriptive observational studyInstitutional; patients presenting with CNS anomalies at tertiary hospital10854 (50%)
Idowu and Olawehinmi27NigeriaProspective descriptive observational studyInstitutional; patients presenting with NTDs at tertiary hospital9491 (96.8%)
Okafor et al28NigeriaProspective cohort studyInstitutional; patients with PUV at tertiary hospital3122 (71%)
Sekabira and Hadley29South AfricaRetrospective descriptive observational studyInstitutional; patients with gastroschisis at tertiary hospital10625 (23.6%)
Santos et al30TanzaniaProspective descriptive observational studyInstitutional; patients with hydrocephalus at tertiary medical facility1259 (6.8%)
Wesonga et al31UgandaProspective cohort studyInstitutional; patients with gastroschisis at a tertiary hospital4110 (24.4%)
Munjanja et al32ZimbabweProspective descriptive observational studyInstitutional; all patients delivered at Greater Harare Obstetric Unit36 5144429 (12.1%)
Total11 studies, 6 countries4 retrospective, 7 prospective observational studies11 institutional37 3494852
Median: 50%
Range: 6.8%–96.8%
Asia
Lu et al33ChinaRetrospective cross-sectional studyNational; fetuses with NTDs424419 (98.8%)
Bhat et al34IndiaRetrospective descriptive observational studyInstitutional; patients admitted to NICU with CDH*1611 (68.8%)
Raman et al35IndiaRetrospective descriptive observational studyInstitutional; symptomatic patients with congenital cystic lung lesions at tertiary care centre406 (15%)
Saha et al36IndiaRetrospective descriptive observational studyInstitutional; all deliveries at rural medical college73656682 (90.7%)
Sood et al37IndiaRetrospective descriptive observational studyInstitutional; patients with NTDs at tertiary hospital6544 (67.7%)
Kazmi et al38IranProspective descriptive observational studyInstitutional; patients referred to tertiary centre for myelomeningocele evaluation and management140136 (97.1%)
Samadirad et al39IranRetrospective descriptive observational studyRegional; fetuses with congenital anomalies639557 (87.2%)
Ho et al40MalaysiaRetrospective cohort studyRegional; births in Kinta District (253 cases with congenital anomalies and 506 control cases)759705 (92.9%)
Kitisomprayoonkul and Tongsong41ThailandProspective descriptive observational studyInstitutional; patients with NTDs at tertiary hospital4642 (91.3%)
Total9 studies, 5 countries7 retrospective, 2 prospective observational studies6 institutional, 2 regional, 1 national94948602
Median: 90.7%
Range: 15%–98.8%
North America
Johnson et al42JamaicaRetrospective observational reviewInstitutional; patients with congenital anomalies at tertiary hospital5554 (98.2%)
Total1 study, 1 country1 retrospective observational study1 institutional5554
Median: N/A
Range: N/A

  • CDH, congenital diaphragmatic hernia; CNS, central nervous system; NICU, neonatal intensive care unit; NTD, neural tube defects; PUV, posterior urethral valves.