Efficacy and tolerability of high and low-volume bowel preparation compared: A real-life single-blinded large-population study

Table 5 Clinical outcomes according to volume of bowel preparation, standard-definition colonoscopes, n (%)

Outcome	High volume (n = 575)	Low volume (n = 634)	OR (95%CI)	P value1	Adjusted2 OR (95%CI)	P value2
PDR	186 (32.3)	144 (22.7)	1.63 (1.26–2.10)	< 0.0013	1.59 (1.22–2.08)	< 0.0013
ADR	140 (24.3)	97 (15.3)	1.78 (1.34–2.38)	< 0.0013	1.71 (1.26–2.30)	< 0.0013
AADR	35 (6.1)	18 (2.8)	2.23 (1.24–3.96)	0.0073	1.97 (1.09–3.56)	0.0253
Cancer	14 (2.4)	10 (1.6)	1.56 (0.69–3.53)	0.289
SDR	12 (2.1)	8 (1.3)	1.67 (0.68–4.11)	0.266

¹P value degrees of freedom = 1.

²Adjustment for age (as a continuous variable), sex and indications for colonoscopy; P value degrees of freedom = 7.

³Significant different.

OR: Odds ratio; PDR: Polyp detection rate; ADR: Adenoma detection rate; AADR: Advanced adenoma detection rate; SDR: Sessile lesion detection rate.