Mineral
composition 		Baseline T1 P-valuea
Mean (SD) Mean (SD)
Group 1 Calcium
(% weight) 		19.09 (5.57) 31.3 (13.69) 0.001
Phosphorous
(% weight) 		13.01 (3.41) 16.2 (2.78) 0.47
Ca/P 1.45 (0.07) 1.85 (0.47) 0.003
Group 2 Calcium
(% weight) 		18.05 (5.85) 24.93 (1.55) 0.001
Phosphorous
(% weight) 		12.4 (3.64) 15.71 (0.79) 0.001
Ca/P 1.44 (0.06) 1.58 (0.03) 0.002
Group 3 Calcium
(% weight) 		18.31 (6.08) 28.48 (8.34) 0.001
Phosphorous
(% weight) 		16.01 (1.56) 12.48 (3.71) 0.15
Ca/P 1.45 (0.07) 1.76 (0.42) 0.001
Group 4 Calcium
(% weight) 		18.47 (6.12) 21.83 (1.66) 0.17
Phosphorous
(% weight) 		12.62 (3.76) 14.53 (0.49) 0.649
Ca/P 1.44 (0.07) 1.5 (0.06) 0.124

aStatistically significant at level P < 0.05, Mann-Whitney-U test.
Ca/P = calcium-to-phosphorus ratio; SD = standard deviation.