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Average serum calcium, phosphorous, calcium × phosphate (Ca × PO4) product and intact parathyroid hormone (PTH) levels, based on monthly determinations obtained throughout 2005, 2006 and 2007
| Year | Ca (mg/dl) | PO4 (mg/dl) | Ca × PO4 | PTH (pg/ml) |
|---|---|---|---|---|
| 2005 | 9.3 ± 0.4 | 4.4 ± 0.6 | 40.5 ± 6.5 | 168 ± 52 |
| 2006 | 8.6 ± 0.7 | 5.9 ± 1.1 | 50.4 ± 10.8 | 559 ± 232 |
| 2007 | 9.4 ± 0.6 | 7.2 ± 1.6 | 68.1 ± 17.6 | 424 ± 203 |
| Average | 8.6 ± 2.1 | 5.7 ± 2.1 | 51.8 ± 20.3 | 367 ± 249 |
