The mean VAS scores before treatment and those for early , delayed and long-term response in the 0.5 - and 1.0-Gy groups were 59.620.2 and 55.718.0 ( p = 0.46 ) ; 32.124.5 and 34.422.5 ( p = 0.26 ) ; 27.027.7 and 23.521.6 ( p = 0.82 ) and 10.715.0 and 21.526.9 ( p = 0.12 ) , respectively .