Relation between medication and nephrocalcinosis (NC)
| Drug | NC (n=16) | Non NC (n=85) | p Value |
| Antenatal steroid | 12 (75) | 69 (81) | 0.57 |
| Dexamethasone | 6 (37) | 5 (6) | 0.001 |
| Surfactant | 15 (94) | 44 (52) | 0.002 |
| Frusemide | 9 (56) | 20 (23) | 0.008 |
| High nephrotoxic antibiotic level3-150 | 11 (69) | 17 (20) | 0.001 |
| Phosphate | 13 (81) | 61 (72) | 0.432 |
Values in parentheses are percentages.
↵3-150 High serum levels of gentamicin and/or vancomycin.