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. 2014 Nov 8;4(5):e20337. doi: 10.5812/aapm.20337

Table 2. Comparison of Postoperative Pain Severity Between the Two Groups Based on VAS.

Pain severity Group P Value
Acetaminophen Meperidine
After one hour 2.14 ± 1.39 3.14 ± 1.69 0.003
After two hours 2.28 ± 1.40 3.24 ± 1.39 0.002
After three hours 2.66 ± 1.32 3.78 ± 1.33 < 0.0001
After four hours 3.08 ± 1.31 4.34 ± 1.21 < 0.0001
After five hours 3.58 ± 1.49 4.30 ± 1.25 0.02
After six hours 3.60 ± 1.51 4.06 ± 1.02 0.193