Table 3. Logistic regression analysis of the inability to ride a bicycle among older adults with mobility limitations (n = 123).

Variables		OR	95% CI	P-value
Sex	Female (reference: male)	1.64	0.32–8.55	0.554
Age	Increment of 1 year of age	1.07	0.98–1.18	0.150
BMI	1 increment	0.96	0.82–1.13	0.621
MMSE	1 decrement	1.12	0.86–1.45	0.407
SDS	1 increment	1.03	0.98–1.09	0.278
Frequency of going outdoors	Low frequency of going outdoorsa (reference: high frequency of going outdoors)	0.99	0.28–3.51	0.990
Grip strength	1 kg decrement	1.00	0.89–1.13	0.953
Comfortable gait speed	1 sec/m decrement	1.02	0.93–1.12	0.712
Timed Up & Go test	1 sec increment	1.61	1.02–2.60	0.047
One-leg standing test	1 sec decrement	1.01	0.99–1.03	0.407
Leg extension strength	1 N decrement	1.00	0.99–1.01	0.897

BMI, body mass index; CI, confidence interval; MMSE, Mini-Mental State Examination; OR, odds ratio; SDS, Zung Self-Rating Depression Scale.

^aOlder adults who went out once every 2–3 days or less.