The T-score showed improvement in the control arm ( group A ) from -3.31 1.46 to -2.12 1.44 , a gain of 35.9 per cent ( P < 0.05 ) and in drug arm ( group B ) -2.82 1.27 to -1.06 1.84 , registering a gain of 62.4 per cent ( P < 0.001 ) .