Magnesium citrate with a single dose of sodium phosphate for colonoscopy bowel preparation

Table 1 Summary of the scoring system for the Ottawa Bowel Preparation Scale

Cleanliness

Excellent (0): mucosal detail clearly visible. If fluid present, it is clear. Almost no stool residue

Good (1): some turbid fluid or stool residue but mucosal detail still visible. Washing and suctioning not necessary

Fair (2): turbid fluid or stool residue obscuring mucosal detail and contour. However, mucosal detail becomes visible with suctioning. Washing not necessary

Poor (3): presence of stool obscuring mucosal detail and contour. However, with suctioning and washing, a reasonable view is obtained

Inadequate (4): solid stool obscuring mucosal detail and contour despite aggressive washing and suctioning

Fluid: small (0), moderate (1), large (2)

Table 2 Baseline characteristics (mean ± SD) n (%)

Variables	Group I (n = 79)	Group II (n = 80)	P value
Age (yr), median (range)	59 (46-77)	60 (48-78)	NS
Male	40 (50.6)	50 (62.5)	NS
Cecal intubation time (s)	300.6 ± 171.9	314 ± 190.5	NS
Weight (kg)	61.5 ± 15.6	64.1 ± 15.3	NS
Prior colonoscopy	45 (56.9)	44 (55.0)	NS
With PEG	11 (13.9)	14 (17.5)
With Sodium phosphate	34 (43.0)	30 (37.5)
Hypertension	12 (15.2)	15 (18.8)	NS
Diabetes	8 (10.1)	5 (6.3)	NS
Constipation (< 3/wk)	12 (15.2)	14 (17.6)	NS

PEG: Polyethylene glycol; NS: Not significant.

Table 3 Efficacy of bowel cleansing by Ottawa scoring system (mean ± SD)

Variables	Group I (n = 79)	Group II (n = 73)	P value
Right colon	1.4 ± 1.1	1.3 ± 1.1	NS
Mid colon	1.0 ± 0.9	0.8 ± 0.9	NS
Rectosigmoid colon	1.3 ± 0.9	1.2 ± 1.0	NS
Fluid present	0.7 ± 0.6	0.4 ± 0.6	NS
Overall score	4.4 ± 2.6	3.8 ± 3.0	NS

NS: Not significant.