Table 3 Pairwise differences in calcium, phosphate, and hypophosphatemia at delivery for women in the P1084s substudy
|  |  | TDF-ART (N = 157) | ZDV-ART (N = 165) | ZDV Alone (N = 156) |
|---|---|---|---|---|
Calcium (mg/dL) | N | 141 | 143 | 137 |
| Â | Mean (sd) | 8.72 (0.60) | 8.77 (0.66) | 8.78 (0.59) |
|  | Mean difference (95% CI) from TDF-ART |  | − 0.05 (− 0.20, 0.09) | − 0.06 (− 0.20, 0.08) |
|  | Mean difference (95% CI) from ZDV-ART |  |  | − 0.01 (− 0.16, 0.14) |
Phosphate (mg/dL) | N | 142 | 145 | 137 |
| Â | Mean (sd) | 3.56 (0.60) | 3.70 (0.58) | 3.72 (0.61) |
|  | Mean difference (95% CI) from TDF-ART |  | − 0.14 (− 0.28, − 0.01) | − 0.17 (− 0.31, − 0.02) |
|  | Mean Difference (95% CI) from ZDV-ART |  |  | − 0.02 (− 0.16, 0.12) |
Hypophosphatemia | No | 136/142 (95.77) | 143/145 (98.62) | 135/137 (98.54) |
| Â | Yes | 6/142 (4.23) | 2/145 (1.38) | 2/137 (1.46) |
|  | Mean difference (95% CI) from TDF-ART |  | 2.85 (− 0.97, 6.66) | 2.77 (− 1.11, 6.64) |
|  | Mean difference (95% CI) from ZDV-ART |  |  | − 0.08 (− 2.84, 2.68) |