Bowel preparation protocol for hospitalized patients ages 50 years or older: A randomized controlled trial

Table 3 Demographics and bowel preparation efficiency in patients ≥ 75 years in age in groups 1 and 2, n (%)

Characteristics	Group 11, n = 22	Group 22, n = 33	P value
Age in yr	79.36 ± 4.22	81.03 ± 4.19	0.149
Male sex	15 (68.2)	25 (75.8)	0.537
History of abdominopelvic surgery	8 (36.4)	15 (45.5)	0.503
Comorbidity
Constipation	6 (27.3)	8 (24.2)	0.800
Drugs for constipation	2 (9.1)	3 (9.1)	1.000
Diabetes	12 (54.5)	14 (42.4)	0.378
Hypertension	17 (77.3)	24 (72.7)	0.848
Nutritional status
BMI in kg/m2	24.16 ± 2.88	24.29 ± 2.53	0.542
Hemoglobin in g/L	128.50 ± 15.88	125.12 ± 16.39	0.203
Albumin in g/L	38.60 ± 4.05	37.88 ± 4.19	0.600
Bowel preparation efficiency
Right BBPS score ≥ 2	16 (72.7)	27 (81.8)	0.641
Transverse BBPS score ≥ 2	22 (100.0)	32 (97.0)	1.000
Left BBPS score ≥ 2	22 (100.0)	33 (100.0)	N/A
Global BBPS score ≥ 6	20 (90.9)	32 (97.0)	0.716

Data are mean ± SD or n (%).

¹Group 1: 30 mL of lactulose on the day before the colonoscopy, three meals with a low-residue liquid diet, and 2 L of water mixed with polyethylene glycol on the colonoscopy day.

²Group 2: Regular diet for breakfast and lunch, fasting or a low-residue liquid diet for dinner, and 2 L of water mixed with polyethylene glycol (PEG) on the day before the colonoscopy; 2 L of water mixed with PEG on the colonoscopy day. BBPS: Boston bowel preparation scale. BMI: Body mass index; N/A: Not available.