Table 2 Outcomes throughout the 48-hr postoperative period

From: The effect of intravenous dexamethasone on postoperative nausea and vomiting after Cesarean delivery with intrathecal morphine: a randomized-controlled trialEffet de la dexaméthasone intraveineuse sur les nausées et vomissements postopératoires après un accouchement par césarienne avec morphine intrathécale : un essai randomisé contrôlé

 Placebo group
(n = 53)
Dexamethasone group
(n = 55)
Difference (95% CI)P value
Incidence of nausea and vomiting:    
 Nausea only (PON), n (%)21 (39.6%)15 (27.3%)-12.3% (-30.0 to 5.3)0.17
 Nausea with vomiting (POV), n (%)24 (45.3%)29 (52.7%)7.4% (-11.4 to 26.3)0.44
 Total (PONV), n (%)45 (84.9%)44 (80.0%)-4.9% (-19.2 to 9.4)0.50
Overall PONV impact score [IQR]0 [0–0.5]0 [0–1]-0.69
PONV impact score ≥ 5 at any time point, n (%)5 (9.4%)7 (12.7%)-0.59
Total # of emesis episodes [IQR]0 [0–3]1 [0–3]-0.61
Patients requiring rescue antiemetics, n (%)18 (34%)17 (31%)-0.74
Total ondansetron administered (mg) [IQR]0 [0–4]4 [0–4]-0.14
Overall NRS pain score [IQR]2 [1–3.25]1.5 [0–3.25]-0.24
Total ibuprofen administered (g) [IQR]3.2 [2.4–4.0]3.2 [2.4–4.0]-0.18
Total ketorolac administered (mg) [IQR]30 [30–45]30 [30–45]-0.98
Total acetaminophen administered (mg) [IQR]3250 [1300–4875]3900 [1300–5200]-0.82
Total opioids administered (mg of oxycodone) [IQR]75 [40–100]65 [35–90]-0.26
  1. Number (%) and medians [interquartile range] reported as appropriate. Percent difference in sample proportions (95% confidence interval) reported for primary outcomes.
  2. CI = confidence interval; IQR = interquartile range; NRS = numeric rating scale; PONV = postoperative nausea and vomiting; POV = postoperative vomiting.