Clinical Research
Copyright ©2006 Baishideng Publishing Group Co.
World J Gastroenterol. Oct 14, 2006; 12(38): 6161-6166
Published online Oct 14, 2006. doi: 10.3748/wjg.v12.i38.6161
Table 1 Basal features of patients in the four preparation groups
Group 1Group 2Group 3Group 4P
Patients (n)43454544
Gender ratio (M/F)21:2224:2119:2621:23NS
Age (yr) (mean ± SD)58.0 ± 15.952.4 ± 16.753.6 ± 15.254.0 ± 16.5NS
Chronic constipation (%)17.126.324.427.2NS
Polyp surveillance (%)23.312.56.613.6NS
Table 2 Comparison of rate of patients with cleansing quality ≥ 4, between different treatment groups (mean ± SD, %)
GroupGlobalCecumAscendingTransverseDescending-sigmoidRectum
178.6 ± 0.272.1 ± 0.279.1 ± 0.281.0 ± 0.176.7 ± 0.279.1 ± 0.2
280.0 ± 0.284.4 ± 0.177.8 ± 0.282.2 ± 0.186.7 ± 0.186.7 ± 0.1
326.7 ± 0.2b38.6 ± 0.2b22.2 ± 0.2b35.6 ± 0.2b60.0 ± 0.2d57.8 ± 0.2d
46.8 ± 0.1 b14.6 ± 0.1b9.8 ± 0.1b32.6 ± 0.2b45.5 ± 0.2b50.0 ± 0.2b
Table 3 Distribution by size and shape of all polyps detected in the patients who received bowel preparation the same day and the day before
LesionPreparationsame day(group 1, 2)Preparationday before(group 3, 4)P
Polyp size (mean ± SD)5.6 ± 3.85.3 ± 5.1NS
Polyp size ≤ 5 mm (n = 121)5962NS
Flat lesions (n = 37)289< 0.01
Flat lesions size (mean ± SD)4.8 ± 3.79.0 ± 12.0NS
Protruding polyps (n = 146)6977NS
Protruding polyps size (mean ± SD)5.9 ± 3.84.9 ± 3.6NS
Total polyps (flat + protruding) (n = 183)9786NS
Table 4 Polyp status in patients who received bowel preparation the same day or the day before (group 3, 4), n (%)
Preparationsame day(group 1, 2)Preparationday Before(group 3, 4)P
Patients (n)(88)(89)
Any polyp46 (52.3)40 (44.9)NS
Flat lesions119 (21.6)8 (9.0)< 0.05
Protruding polyps235 (39.7)37 (41.6)NS
Multiple (≥ 3) polyps16 (18.1)14 (15.7)NS
Small ( ≤ 5 mm) polyps39 (44.3)33 (37.0)NS
Table 5 Comparison of the tolerance variables in the four groups n (%)
Side effectGroup 1Group 2Group 3Group 4P
Nausea17 (39.5)24 (53.3)24 (53.3)15 (34.1)NS
Vomiting4 (9.3)10 (22.2)10 (22.2)8 (18.2)NS
Disgusting110 (23.3)12 (26.7)12 (26.7)12 (27.3)NS
Thirst16 (13.9)9 (20.0)9 (20)12 (27.2)NS
Abdominal pain14 (9.3)4 (8.9)3 (6.6)5 (11.4)NS
Anal pain11 (2.3)4 (8.9)1 (2.2)2 (4.5)NS