| Level I | Good quality evidence |
Systematic review of RCTs with consistent findings High quality individual RCT |
| Level II |
Limited quality patient orientated evidence |
Systematic review of lower quality studies or studies with inconsistent findings Low quality clinical trial Cohort studies Case-control studies |
| Level III | Other |
Consensus guidelines, extrapolations from bench research, usual practice, opinion, disease-oriented evidence (intermediate or physiologic outcomes only), or case series |
[5] Iron prophylaxis - preterm infants: National Department of Health, Essential Drugs Programme: Paediatric Hospital Level STGs and EML,. 2020 (draft format).
Iron prophylaxis - preterm infants: Baker RD, Greer FR; Committee on Nutrition American Academy of Pediatrics.Diagnosis and prevention of iron deficiency and iron-deficiency anemia in infants and young children (0-3 years of age). Pediatrics. 2010 Nov;126(5):1040-50.. https://www.ncbi.nlm.nih.gov/pubmed/20923825
Iron prophylaxis - preterm infants: National Department of Health: Newborn care charts, 2014. http://www.health.gov.za/