Table 2.

Other clinical factors associated with antimicrobial treatment history among long-term care facility residents, from whom stool samples were collected

Factor	In the group with treatment (N=47)	In the group without treatment (N=34)	P
Age, median (years, IQR)	86.5 (82.0–92.8)	83.5 (74.8–90.3)	0.043
Admission from hospitals	80 %	53 %	0.017
Male	41 %	33 %	n.s.
Dementia	91 %	77 %	n.s.
Charlson’s comorbidity index: high or very high	53 %	28 %	0.030
Barthel index: severe or total dependency	82 %	63 %	n.s.
Cannot sit or roll over in bed	48 %	23 %	0.034
Cannot gargle or brush teeth	55 %	17 %	0.001

P-values were calculated using Wilcoxon’s rank-sum test for age, and Chi-square test for the other categorical variables; n.s. not significant.