For the caudal group , significant improvements were found for descriptive pain at 6 months ( P = 0.031 ) , VAS at 6 weeks ( P = 0.036 ) , 3 months ( P = 0.026 ) , and 6 months ( P = 0.003 ) , present pain intensity ( PPI ) at 3 months ( P = 0.013 ) and 6 months ( P = 0.01 ) ; anxiety at 6 weeks ( P = 0.008 ) , 3 months ( P = 0.004 ) , and 6 months ( P = 0.001 ) and depression at 6 months only ( P = 0.037 ) .
