Table 9.

Use of nitrous oxide and oxygen gas, intravenous sedation and intravenous analgesia

	SC	EAC	Difference (one-sided 97.5% CI)	Non-inferiority margin or one-sided P value
Nitrous oxide and oxygen gas
Global	291 (32.9%)	283 (31.9%)	−1.0% (−∞ to 3.3%)	10%
Non-BCSP	209 (43.5%)	180 (36.4%)	−7.0% (−∞ to −0.9%)	10%
BCSP	82 (20.4%)	103 (26.2%)	5.9% (−∞ to 11.7%)	10%
Intravenous sedation
Global	591 (66.9%)	586 (66.1%)	−0.8% (−∞ to 3.6%)	10%
Non-BCSP	349 (72.6%)	357 (72.3%)	−0.3% (−∞ to 5.3%)	10%
BCSP	242 (60.1%)	229 (58.3%)	−1.8% (−∞ to 5.0%)	10%
Intravenous analgesia
Global	582 (65.8%)	588 (66.3%)	0.5% (−∞ to 4.9%)	10%
Non-BCSP	342 (71.1%)	360 (72.9%)	1.8% (−∞ to 7.4%)	10%
BCSP	240 (59.6%)	228 (58.0%)	−1.5% (−∞ to −5.3%)	10%

BCSP, Bowel Cancer Screening Programme; EAC, EV-assisted colonoscopy; SC, standard colonoscopy.