Table 5.

Association of patient characteristics with low reproducibility of visit-to-visit variability of blood pressure between the first seven versus second seven measurements.

	Unadjusted		Adjusted*
	Odds Ratio (95% CI)	p-value	Odds Ratio (95% CI)	p-value
Age, years	1.02 (0.99, 1.05)	0.251	1.02 (0.99, 1.06)	0.261
Women	1.50 (1.03, 2.17)	0.034	1.31 (0.89, 1.94)	0.167
African-American	1.38 (0.96, 1.99)	0.087	1.20 (0.81, 1.77)	0.370
Mean SBP, mmHg	1.05 (1.03, 1.06)	<0.001	1.04 (1.03, 1.06)	<0.001
Mean pulse pressure, mmHg	1.04 (1.02, 1.05)	<0.001	0.99 (0.96, 1.02)	0.627
Diabetes mellitus	0.94 (0.66, 1.33)	0.717	0.95 (0.66, 1.38)	0.796
History of myocardial infarction	0.87 (0.53, 1.44)	0.597	0.97 (0.58, 1.64)	0.914
History of stroke	0.84 (0.52, 1.37)	0.488	0.95 (0.57, 1.58)	0.845
History of heart failure	0.73 (0.38, 1.39)	0.341	0.83 (0.43, 1.62)	0.585
Antihypertensive medication class
ACE Inhibitors	0.93 (0.65, 1.33)	0.691	0.97 (0.67, 1.40)	0.862
Beta blockers	1.19 (0.83, 1.70)	0.347	1.25 (0.86, 1.82)	0.234
Calcium channel blockers	1.29 (0.91, 1.84)	0.158	1.08 (0.74, 1.56)	0.711
Angiotensin receptor blockers	1.73 (1.20, 2.50)	0.004	1.58 (1.07, 2.32)	0.020
Diuretics	0.93 (0.64, 1.34)	0.698	0.85 (0.58, 1.24)	0.400

Low reproducibility was defined as an absolute difference in the standard deviation of systolic blood pressure ≥ 8 mmHg between the first seven and second measurements. This outcome was observed in 20.0% (N=154) patients.

^*Adjusted for age, gender, race, and mean systolic blood pressure