Table 3.

Association of Blood Pressure with Fall Incidence (treated hypertension, N=3900)^*

		Crude Model		Model 1		Model 2		Model 3
	N (%)	IRR† (95% CI)	p values	IRR (95% CI)	p values	IRR (95% CI)	p values	IRR (95% CI)	p values
Systolic Blood Pressure
continuous		1.001 (0.998–1.005)	0.50	1.00 (0.997–1.004)	0.84	0.997 (0.993–1.001)	0.13	0.997 (0.993–1.001)	0.14
<120 mm Hg	1177 (30.2)	0.86 (0.73–1.01)	0.06	0.89 (0.76–1.04)	0.15	1.07 (0.90–1.26)	0.45	1.07 (0.89–1.27)	0.47
120–129 mm Hg	1230 (31.5)	0.88 (0.75–1.03)	0.11	0.93 (0.79–1.09)	0.35	1.01 (0.85–1.19)	0.95	1.04 (0.88–1.24)	0.62
130–139 mm Hg	825 (21.2)	0.90 (0.75–1.06)	0.21	0.88 (0.75–1.05)	0.15	1.05 (0.88–1.25)	0.60	1.10 (0.91–1.32)	0.31
>=140 mm Hg	668 (17.1)	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Diastolic Blood Pressure
continuous		0.992 (0.986–0.997)	0.006	0.997 (0.991–1.003)	0.31	0.993 (0.987–1.000)	0.04	0.994 (0.988–1.000)	0.07
<60 mm Hg	223 (5.7)	1.30 (1.02–1.65)	0.03	1.09 (0.86–1.39)	0.46	1.13 (0.89–1.44)	0.33	1.12 (0.88–1.44)	0.36
60–69 mm Hg	1104 (28.3)	1.22 (1.05–1.42)	0.01	1.14 (0.98–1.32)	0.09	1.17 (1.00–1.37)	0.04	1.14 (0.97–1.34)	0.11
70–79 mm Hg	1656 (42.4)	1.03 (0.89–1.18)	0.69	1.00 (0.87–1.15)	0.95	1.01 (0.88–1.17)	0.85	1.00 (0.86–1.16)	0.95
>=80 mm Hg	907 (23.2)	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref

^*Model 1 adjusts for age, race/ethnicity, and education. Model 2 additionally adjusts for alcohol use, body mass index, number of chronic conditions, vision (excellent, very good, good, fair, poor), and bodily pain (none, very mild, mild, moderate, severe). Model 3 additionally adjusts for Short Physical Performance Battery (SPPB) score. Results in bold font are statistically significant at p<0.05. Results in bold font are statistically significant at p<0.05.

^†Incidence rate ratio, continuous represents change in fall risk associated with 1 mm Hg increase in blood pressure