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. 2009 Mar;20(3):639–644. doi: 10.1681/ASN.2008020130

Table 3.

Parameters at baseline (T0), during chewing gum use (weeks 1 and 2), and after chewing gum discontinuation (weeks 4 and 6; n = 13)a

Parameter Baseline T0 Chewing-Gum Add-on
Follow-up (after Chewing Gum Discontinuation)
Week 1 Week 2 Week 4 Week 6
Serum Ca (mg/dl) 8.41 ± 0.98 8.35 ± 0.54 8.45 ± 0.63 8.45 ± 0.70 8.58 ± 0.70
PTH (pg/ml) 508.42 ± 283.88 444.75 ± 238.80 397.67 ± 254.20 382.92 ± 221.80 496.35 ± 285.75
Salivary P (mg/dl) 73.21 ± 19.19 52.02 ± 12.89 33.19 ± 6.53 68.91 ± 16.05 75.33 ± 18.11
Serum P (mg/dl) 7.60 ± 0.91 5.38 ± 0.81 5.25 ± 0.89 5.64 ± 1.02 7.55 ± 0.75
Calcium-phosphate product 63.82 ± 10.01 45.68 ± 6.45 44.30 ± 7.99 47.75 ± 9.89 64.71 ± 8.03
a

Data are means ± SD.