Research Article

Risk Factors for the Development of Refeeding Syndrome-Like Hypophosphatemia in Very Low Birth Weight Infants

Table 2

Parameters of parenteral administration of nutrition and minerals during the first week of life in very low birth weight infants stratified according to serum phosphate levels.

ParameterAll ()Hypophosphatemia ()Normophosphatemia () value

Parenteral administration on the first day of life
 Glucose infusion rate, mg/kg/min4.2 (3.9–4.9)5.0 (4.2–5.3)4.1 (3.8–4.4)0.005
 Calcium, mg/kg/day53.4 (47.9–60.4)53.4 (50.2–59.7)53.4 (36.9–60.4)0.543
Initial day of parenteral administration
 Amino acids, days2.0 (1.0–3.0)2.0 (1.3–2.8)2.0 (1.3–3.0)0.933
 Phosphate, days4.0 (3.0–5.0)4.0 (3.3–5.8)4.0 (3.0–5.0)0.268
 Potassium, days3.0 (2.3–4.8)3.0 (3.0–3.8)3.0 (2.0–5.0)0.712
Final day of parenteral administration
 Calcium, days3.0 (3.0–4.0)3.0 (3.0–4.0)4.0 (3.0–4.0)0.628
Daily nutritional intake during the first week
 Amino acids, g/kg/day1.3 (1.0–1.5)1.4 (0.9–1.7)1.3 (1.0–1.5)0.404
 Calcium, mg/kg/day49.5 (40.8–55.0)49.5 (43.2–6.8)49.5 (36.9–55.0)0.965
 Phosphate, mg/kg/day22.2 (16.4–29.2)22.2 (16.0–32.5)21.7 (16.5–28.6)0.704

Values are expressed as median (interquartile range). Significant differences between the groups () are indicated in bold font.