Risk factors and outcome of pregnancy
| Condition | Prevalence | Symptomatic newborns (%) |
| Congenital rubella | 0.01/1000 deliveries | 80 |
| Congenital syphilis | 0.015/1000 deliveries | Variable with care |
| HIV infection | 0.1/1000 deliveries | 20 |
| Congenital toxoplasmosis | 0.2–2/1000 births | 10 |
| Fetal neural tube defects | 1–2/1000 pregnancies | 100 |
| Group B streptococcal infection | 1–3/1000 births | 20 |
| Cytomegalovirus infection | 2–22/1000 deliveries | 10 |
| Urogenital chlamydia | 5–30/1000 deliveries | 10 |
| Haemolytic disease of the newborn | 10–30/1000 deliveries | 1 |
| Undiagnosed coeliac disease | 12/1000 deliveries | 30 |