Split-Dose Polyethylene Glycol Is Superior to Single Dose for Colonoscopy Preparation: Results of a Randomized Controlled Trial

Table 4

Adverse events (group symptom score).

	Split-dose PEG	Single-dose PEG	value
Nausea	0.49	0.59	NS
Vomiting	0.22	0.05	0.013
Abdominal pain	0.30	0.59	0.001
Bloating	0.68	1.03	0.004
Chest pain	0.02	0.06	NS
Dizziness	0.25	0.25	NS
Shortness of breath	0.04	0.03	NS
Ankle swelling	0.01	0.01	NS
Total	2.01	2.60	0.051

Proportion of patients self-reporting bowel preparation related adverse symptoms or signs. There were no discontinuations due to adverse events. NS: not significant; PEG: polyethylene glycol.