Serum 25 ( OH ) D levels [ geometric mean ( 95 % CI ) ] increased significantly from baseline to 12 weeks after therapy in both the groups [ Group 1 : 7.58 ( 5.5010.44 ) to 16.06 ( 12.71 20.29 ) ng/mL , P < 0.001 ] ; Group 2 : 6.57 ( 4.669.25 ) to 17.60 ( 13.7122.60 , P < 0.001 ] .