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Preterm Infant Growth
Aka: Preterm Infant Growth, Preterm Infant Expected Growth Velocity
- Exam: Expected Growth Velocity of Preterm Infants
- Age 1 month from term (40 weeks gestation)
- Weight gain: 26-40 g/day
- Length gain: 3.0-4.5 cm/month
- Head Circumference gain: 1.6-2.5 cm/month
- Age 4 months from term (40 weeks gestation)
- Weight gain: 15-25 g/day
- Length gain: 2.3-3.6 cm/month
- Head Circumference gain: 0.8-1.4 cm/month
- Age 8 months from term (40 weeks gestation)
- Weight gain: 12-17 g/day
- Length gain: 1.0-2.0 cm/month
- Head Circumference gain: 0.3-0.8 cm/month
- Age 12 months from term (40 weeks gestation)
- Weight gain: 9-12 g/day
- Length gain: 0.8-1.5 cm/month
- Head Circumference gain: 0.2-0.4 cm/month
- Age 18 months from term (40 weeks gestation)
- Weight gain: 4-10 g/day
- Length gain: 0.7-1.3 cm/month
- Head Circumference gain: 0.1-0.4 cm/month
- References
- Casey (1991) J Pediatr 119(4): 599-605 [PubMed]
- Gauer (2014) Am Fam Physician 90(4): 244-51 [PubMed]