Table 1.

Patients’ characteristics

Variable	Standard group	Split group	P value
No. of patients	78	75
Age (y), mean±SD	62.7 ± 9.9	61.9 ± 11.1	0.63
Male/female	47/31	46/29	0.89
Height (cm)	162.8 ± 9.9	162.8 ± 9.1	0.98
Weight (kg)	62.4 ± 13.7	62.7 ± 13.2	0.87
Body mass index (kg/m2)	23.4 ± 3.7	23.5 ± 3.1	0.81
Average sleeping time (h)	6.69 ± 1.14	6.49 ± 1.08	0.27
Bowel habit (daily) (n, %)	62 (79.5)	57 (74.0)	0.49