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Table 2 Apfel score risk factors

From: Assessment of pain and postoperative nausea and vomiting and their association in the early postoperative period: an observational study from Palestine

Apfel score Frequency PONV; N = 96 No PONV; N = 115 P value
Apfel score = 0 46 (21.8) 17 (17.7) 29 (25.2) 0.240
Apfel score = 1 64 (30.3) 28 (29.2) 36 (31.3)
Apfel score = 2 66 (31.3) 31 (32.3) 35 (30.4)
Apfel score = 3 29 (13.7) 15 (15.6) 14 (12.2)
Apfel score = 4 6 (2.8) 5 (5.2) 1 (0.9)
Overall 211 (100) 96 (100) 115 (100)