Table 2 Clinical characteristics by serum zinc concentration after zinc administration
≧ 70 μg/dL (n = 16) | < 70 μg/dL (n = 47) | ||||
|---|---|---|---|---|---|
Median | Range (Interquartile range) | Median | Range (Interquartile range) | p | |
GA (week) | 31.4 | 25.0–36.1 (29.8–33.0) | 32.6 | 26.4–36.1 (30.4–34.0) | 0.252 |
Birth weight (g) | 1315.5 | 624.0–2300.0 (1175.8–1700.5) | 1578.0 | 782.0–2550.0 (1264.0–1782.5) | 0.272 |
Dose (mg/kg/day) | 2.5 | 1.7–3.8 (2.2–2.9) | 2.0 | 1.0–3.3 (1.5–2.3) | 0.000456 |
Administration period (day) | 12.0 | 6.0–14.0 (10.0–13.0) | 13.0 | 4.0–14.0 (9.0–13.0) | 0.513 |
At the start of administration | |||||
PNA (day) | 29.0 | 14.0–71.0 (25.0–35.3) | 22.0 | 9.0–72.0 (15.0–30.5) | 0.0542 |
PMA (week) | 35.8 | 31.4–39.6 (34.4–37.1) | 35.4 | 32.6–38.3 (34.6–36.8) | 0.953 |
Body weight (g) | 2035.5 | 866.0–2617.0 (1659.0–2223.0) | 1946.0 | 1275.0–2686.0 (1763.0–2212.5) | 0.0778 |
Serum zinc concentration (μg/dL) | 58.5 | 43.0–68.0 (56.0–64.5) | 58.0 | 40.0–69.0 (53.0–63.5) | 0.472 |
Serum copper concentration (μg/dL) | 47.0 | 27.0–86.0 (42.5–53.5) | 36.0 | 26.0–76.0 (32.0–45.0) | 0.0174 |