Nurse Participation in Colonoscopy Observation versus the Colonoscopist Alone for Polyp and Adenoma Detection: A Meta-Analysis of Randomized, Controlled Trials

Table 2

Characteristics of patients in the included trials.

Trials	Average age (year)		Male/total (%)		Intubation time (min)		Withdrawal time (min)		Bowel preparation (adequate, %)
	CA	NP	CA	NP	CA	NP	CA	NP	CA	NP
Lee et al., 2011 [12]	58.1 ± 7.3	58.6 ± 7.4	51.3	54.6	7.9 ± 5.9	7.3 ± 4.8	9.7 ± 3.9	10.2 ± 5.5	75.3	76.2
Kim et al., 2012 [13]	56.4 ± 6.1	57.3 ± 6.0	60.2	62.5	7.1 ± 5.7	7.1 ± 5.6	8.5 ± 3.5	8.8 ± 3.5	80.1	78.6
Aslanian et al., 2013 [14]	57.8 ± 9.4	58.1 ± 9.6	53.4	47.4	NS	NS	14.1 ± 8.3	15.3 ± 8.2	88	87.7