Table 2: Study characteristics relating to setting, number of participants, mean age, intervention and control groups, inclusion and exclusion criteria, assessed outcomes and follow-up after caesarean section.

n: number; RCT: randomized controlled trial; ml: milliliter, mg: milligram; VAS: visual analogue scale; STAI: State-Trait Anxiety Inventory; cm: centimeters; PONV: incidence of postoperative nausea and vomiting. *Randomized participants; ^†Patients were equalized according to age into two groups (18-31 and 32-45 years old); ^‡Day 1 (24 hours after operation): Patients were given the first dose of the standard analgesic (intramuscularly, 75 mg/3 ml diclofenac at 9.00 a.m. and 9.00 p.m.); Day 2 (48 hours after operation): Patients were given the third dose of the standard analgesic (intramuscularly, 75 mg/3 ml diclofenac at 9.00 a.m. and 9.00 p.m.); Day 3 (72 hours after operation): Minoset® 500 mg, tablet (every 4-6 hours, as needed) was administered in accordance with the analgesic protocol. At 72 hours only, the number of analgesics required by the patient was determined by means of face-to-face interview or telephone call.