Figure 4. Serum creatinine level (micro Meter/l) preoperatively and on postoperative days 1-4. Diclofenac (circles, solid line) = patients with perioperative intramuscular diclofenac 75 mg (groups 1 and 2); no diclofenac (squares, dotted line) = patients without perioperative diclofenac (group 3). Values are presented as mean and SEM (whiskers). *P < 0.05 compared to "no diclofenac."