Document Classification

Section Type: RESULTS

Text: Compared with Group C, Group P had significantly lower visual analog scale scores at rest and with movement, respectively, at 2 h (4. 2, P < 0. 001 and 5. 0, P < 0. 001), 6 h (3. 6, P < 0. 001 and 4. 5, P < 0. 001), 12 h (3. 0, P = 0. 017 and 4. 0, P < 0. 001), 24 h (2. 1, P < 0. 001 and 3. 4, P < 0. 001), and 48 h (1. 8, P < 0. 001 and 2. 6, P < 0. 001).