Table 5.
Comparison of maternal and infant serum calcium, PTH and maternal urine Ca/Cr ratio and infant serum calcium and PTH by group and visit.
| Variables | Visit | N++ | 6000 IU Group (n = 95) Mean ± SD |
N++ | 600 IU Group (n = 95) Mean ± SD |
p-value |
|---|---|---|---|---|---|---|
| Maternal | ||||||
| Serum Ca (mmol/L) | 1 | 95 | 3.36 ± 0.08 | 94 | 2.33 ± 0.07 | 0.11 |
| 4 | 68 | 2.35 ± 0.08 | 60 | 2.33 ± 0.08 | 0.26 | |
| 7 | 58 | 2.34 ± 0.08 | 47 | 2.34 ± 0.09 | 0.86 | |
| Serum PTH (pg/ml) | 1 | 94 | 46.4 ± 25.7 | 93 | 50.4 ± 25.1 | 0.29 |
| 4 | 68 | 40.1 ± 22.3 | 61 | 47.0 ± 20.1 | 0.06 | |
| 7 | 58 | 39.7 ± 18.1 | 48 | 51.3 ± 25.6 | 0.003 * | |
| Urine Ca/Cr ratio (mmol/mmol) | 1 | 90 | 0.16 ± 0.15 | 90 | 0.14 ± 12.0 | 0.24 |
| 4 | 66 | 0.24 ± 0.27 | 60 | 0.20 ± 0.15 | 0.24 | |
| 7 | 56 | 0.24 ± 0.20 | 49 | 0.19 ± 0.13 | 0.13 | |
| Infant | ||||||
| Serum Ca (mmol/L) | 1 | 95 | 2.69 ± 0.08 | 94 | 2.69 ± 0.09 | 0.31 |
| 4 | 67 | 2.62 ± 0.09 | 60 | 2.64 ± 0.09 | 0.31 | |
| 7 | 57 | 2.57 ± 0.09 | 48 | 2.54 ± 0.09 | 0.15 | |
| Serum PTH (pg/ml) | 1 | 91 | 30.4 ± 21.4 | 91 | 31.1 ± 21.8 | 0.84 |
| 4 | 64 | 20.7 ± 12.0 | 59 | 21.3 ± 13.0 | 0.78 | |
| 7 | 57 | 26.7 ± 28.0 | 47 | 26.7 ± 13.2 | 0.98 | |
++ N = number of observations. * The maternal serum PTH significantly different between the two groups (Two-sided T-tests).