Table 1:

Visit 1 Sample Characteristics and Univariable Risks of Falls Over 3 Years Using Poisson Regression (n=2,346)

Variable	Distribution	Univariable Risks of Falls Over 3 Years Using Poisson Regressiona,b
	Mean ± SD or N (%)	RR per SD	95% CI	p-value
Age, years	73.6 ± 5.9	1.28	1.18, 1.38	<.001
Race/ethnicity
non-white	246 (10)		REF
white	2100 (90)	1.02	0.74, 1.40	.900
Height, cm	174.2 ± 6.8	0.92	0.84, 0.99	.046
Weight, kg	83.4 ± 13.3	1.04	0.96, 1.13	.297
Body mass index, kg/m2	27.4 ± 3.8	1.10	1.02, 1.20	.019
Cobb angle, degrees	38.6 ± 11.4	1.07	0.98, 1.17	.139
Total hip BMD, g/cm2	0.955 ± 0.139	0.93	0.85, 1.00	.070
Smoking status
never	850 (36)		REF
past or current	1496 (64)	0.90	0.76, 1.07	.228
Drinks per week	4.7 ± 7.4	0.95	0.87, 1.03	.206
Medicationc use
no	2137 (91)		REF
yes	209 (9)	2.29	1.84, 2.86	<.001
Ever had osteoporosis
no	2254 (96)		REF
yes	92 (4)	1.44	1.01, 2.04	.043
Comorbiditiesd
no	1942 (83)		REF
yes	404 (17)	1.71	1.40, 2.09	<.001
Fallen in the past year
no	1871 (80)		REF
yes	475 (20)	3.46	2.94, 4.06	<.001
Trouble with dizziness
no	1715 (73)		REF
yes	631 (27)	1.75	1.47, 2.08	<.001
Chair stand time, sec	11.2 ± 3.4	1.23	1.14, 1.32	<.001
Walking speed, m/sec	1.20 ± 0.23	0.74	0.67, 0.81	<.001
Teng 3MS Exam scoreee	93.1 ± 6.4	0.85	0.79, 0.91	<.001
Self-rated quality of health
good or excellent	2001 (85)		REF
fair or poor or very poor	344 (15)	1.94	1.57, 2.39	<.001

^aAll models adjusted for clinic site

^bRRs are presented per standard deviation increase in predictor variable

^cMedications include benzodiazepines, opioid analgesics, and SSRI or tricyclic antidepressants

^dComorbidities include Parkinson disease, diabetes, or history of stroke

^eTeng Modified Mini-Mental Status Exam