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Table 4 Cross-tabulation for a prediction model for maximum postoperative pain according to peripheral venous cannulation-induced pain score

From: Application of preoperative assessment of pain induced by venous cannulation in predicting postoperative pain in patients under laparoscopic nephrectomy: a prospective observational study

 

Venous cannulation-induced pain score (VAS units)

Total number of patients

< 2.0

≥ 2.0

Patients reporting maximum postoperative pain intensity at rest (VAS units)

 < 4

56 (87.5%)

28 (66.7%)

84

 ≥ 4

8 (12.5%)

14 (33.3%)

22

Total number of patients

64

42

106

  1. Comparison of the number of patients experiencing pain exceeding VAS 4.0 within 24 h between high response group and low response group (P = 0.01)