A non-interventional cross-sectional re-contact study investigating the relationship between overactive bladder and frailty in older adults in Japan

Table 2 Logistic regression for the odds ratio between OAB and frailty status, with frailty status as dependent variable

Parameter	Odds ratio	95% CI	p-Value
OAB status
No	Reference		< 0.001
Yes	2.776	2.179–3.538	< 0.001
Age per 1 unit	0.981	0.955–1.008	0.161
Charlson comorbidity index per 1 unit	1.391	1.191–1.626	< 0.001
Sex
Male	Reference		0.750
Female	0.954	0.715–1.273	0.750
Level of education
University degree	Reference		0.001
No/declined to answer	1.480	1.183–1.852	0.001
Household income
< ¥3,000,000	Reference		0.005
¥3,000,000 to < ¥5,000,000	0.739	0.547–0.999
¥5,000,000 to < ¥8,000,000	0.593	0.416–0.845
¥8,000,000 or more	0.530	0.342–0.822
Declined to answer	0.981	0.683–1.411
Living status (NHWS)
Live alone	Reference		0.402
Live with someone	1.159	0.821–1.636	0.402
BMI category (Kihon checklist)
< 18.5	Reference		< 0.001
≥ 18.5–< 23	0.489	0.329–0.724
≥ 23–< 25	0.559	0.363–0.860
≥ 25	1.044	0.684–1.594
Smoking status
Never	Reference		0.012
Former	1.148	0.868–1.518
Current	1.604	1.169–2.203
Use of alcohol
Abstain	Reference		0.118
Currently consume alcohol	0.822	0.642–1.051	0.118
Vigorous exercise in the past 30 days
No	Reference		< 0.001
Yes	0.506	0.405–0.633	< 0.001

Abbreviations: BMI Body mass index, NHWS National Health and Wellness Survey, OAB overactive bladder

ISSN: 1471-2318