Table 2.

Results from univariate and multivariable models regarding relationship between frailty and risk of fall.

	Model 1		Model 2		Model 3
	OR (95% CI)	P-value	OR (95% CI)	P-value	OR (95% CI)	P-value
Continuous
Per-0.01 increase	1.05 (1.04, 1.06)	<0.001	1.05 (1.04, 1.06)	<0.001	1.06 (1.04, 1.09)	<0.001
Per-s.d. increase	1.65 (1.48, 1.84)	<0.001	1.62 (1.45, 1.82)	<0.001	1.89 (1.50, 2.38)	<0.001
Dichotomizeda
Frailtyb	3.26 (2.61, 4.09)	<0.001	3.18 (2.53, 4.00)	<0.001	3.08 (2.18, 4.34)	<0.001

Model 1 (Basic model): Only frailty included in the model for analysis; Model 2 (age-adjusted model): Model 1 + age; Model 3 (Fully-adjusted model): Model 2 + gender, BMI, marital status, smoking status, drinking status, residence, education level, balance performance (semi-tandem stand and full-tandem stand), type of toilet, grip strength, eyesight, co-morbid condition, overnight hospitalization in last year.

^aTaking robust as reference; ^bParticipants with FI scores higher than mean FI score of overall participants (0.24) were classified to frailty.

OR, odds ratio.