Fig. 1. CONSORT flow diagram.

IGF-1: Insulin-like growth factor 1, IGFBP-3: Insulin-like growth factor binding protein 3. IGF-1/IGFBP-3 levels obtained from blood samples. Early: Day of life 7, Late: 35 weeks postmenstrual age.

IGF-1: Insulin-like growth factor 1, IGFBP-3: Insulin-like growth factor binding protein 3. IGF-1/IGFBP-3 levels obtained from blood samples. Early: Day of life 7, Late: 35 weeks postmenstrual age.