Document Classification

Section Type: RESULTS

Text: The differences in mean pain between T1 and T2, T3 and T4 were -0. 2 + / - 0. 66, -0. 7 + / - 0. 51 and 0. 0 + / - 0. 72 in the DD group (p = 0. 723) ; -0. 9 + / - 0. 60, -0. 4 + / - 0. 57 and -1. 3 + / - 0. 65 in the DP group (p = 0. 578) ; and -1. 0 + / - 0. 59, -0. 5 + / - 0. 77 and -1. 0 + / - 0. 69 in the PD group (p = 0. 816).