Comparative study of two bowel preparaton regimens for colonoscopy: Senna tablets vs sodium phosphate solution

Table 1 Demographic and baseline colonoscopic data of the patients (n = 67)

Characteristics of patients	Senna	NaP
Sex (M/F)	22 : 45	30 : 37
Age (yr, mean ± SD)	54.3 ± 12.7	51.6 ± 12.6
Body weight (kg, mean ± SD)	59.1 ± 10.7	61.8 ± 12.6
Constipation (Yes/No )	9:58	14:53
Laxative users ( Yes/No )	6:61	12:55
Previous Obs-gyn surgery	6:61	7:60
Diabetes (Yes/No )	7:60	6:61
Colonoscopic diagnosis
Normal study	44 (65.7%)	40 (62.5%)
Polyp	8 (12.1%)	4 (6.2%)
Diverticulosis	4 (6.0%)	8 (12.5%)
Carcinoma	4 (6.0%)	6 (9.3%)
Inflammatory bowel disease	6 (9.0%)	3 (4.6%)
Other	1 (1.5%)	3 (4.6%)
Time of colonoscopy (min, mean ± SD)	19.3 ± 14.2	18.2 ± 10.1
Incomplete colonoscopy	4 (6.0%)	5 (7.8%)
Therapeutic:Diagnostic colonoscopy	16:51	14:50

Table 2 The cleansing score, acceptance score and side effects of laxatives (n = 67)

Segment	Senna (mean ± SD)	NaP (mean ± SD)	95% CI of differences
Rectum	7.9 ± 1.7	8.3 ± 1.5	- 1.0 to 0.1
Sigmoid colon	8.0 ± 1.8	8.5 ± 1.4	- 1.0 to 0.1
Descending colon	7.9 ± 2.0	8.5 ± 1.3	- 1.2 to 0.0
Transverse colon	7.9 ± 2.0	8.2 ± 1.4	- 0.9 to 0.3
Ascending colon and cecum	7.2 ± 1.7	6.9 ± 1.4	- 0.2 to 0.8
Acceptance score
Taste	8.6 ± 1.9	5.1 ± 2.8	P < 0.001
Side effects
Nausea & vomiting	0.9 ± 0.2	3.0 ± 3.5	P < 0.001
Abdominal pain	1.3 ± 2.3	1.4 ± 2.4	P = 0.8
Vertigo	0.7 ± 1.6	1.3 ± 2.3	P = 0.08
Sleeplessness	1.2 ± 2.7	1.4 ± 2.5	P = 0.65
Adverse event	2:67	2:64