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. 2017 Jul 14;10:1619–1622. doi: 10.2147/JPR.S138222

Table 3.

Comparison of postoperative pain score

VAS (mm) Groups
p-value
US (n=18) LM (n=18)
3 hours postoperative 3.3±4.9
0 (0–10)
6.1±7.8
0 (0–20)
0.322
6 hours postoperative 6.7±8.4
0 (0–20)
15±8.6
15 (0–30)
0.008
24 hours postoperative 10±8.4
10 (0–20)
22.8±8.3
25 (10–30)
0.001

Notes: Values are expressed as mean ± SD and median (minimum–maximum); n = number of subjects; Mann–Whitney U-test.

Abbreviations: LM, landmark; US, ultrasound; VAS, visual analog scale.