Figure 3

Epidural analgesia, piritramid and NSAIDs in the different phases of analgesia and sedation. The values were tested with the χ² test (P < 0.05) and multiple differences with the Bonferroni–Holm multiple test procedure. NSAIDs, non-steroidal anti-inflammatory drugs. (Epidural: less than 24 hours versus more than 72 hours; less than 24 hours versus weaning; 24–72 hours versus more than 72 hours and 24–72 hours versus weaning, all P < 0.01; less than 24 hours versus 24–72 hours, P = 0.015; more than 72 hours versus weaning, P = 0.37. Piritramid: less than 24 hours versus 24–72 hours versus more than 72 hours versus weaning, all P < 0.01. NSAIDs: less than 24 hours versus 24–72 hours, less than 24 hours versus more than 72 hours and less than 24 hours versus weaning, all P < 0.0001; 24–72 hours versus more than 72 hours, P = 0.14; 24–72 hours versus weaning, P = 0.67; more than 72 hours versus weaning, P = 0.087.)