# Ambulatory blood pressure and falls in older treated patients with hypertension

> **NIH NIH R01** · KAISER FOUNDATION RESEARCH INSTITUTE · 2021 · $749,930

## Abstract

Project Summary/Abstract
Hypertension is a cardiovascular disease (CVD) risk factor of unquestionable importance. Older adults are
disproportionally affected by hypertension with two thirds of adults 60+ years of age in the U.S. having
hypertension. The CVD reduction benefits of antihypertensive medication have been demonstrated among
older adults with hypertension. However, accumulating data suggest antihypertensive medication
intensification may be associated with an increased risk of falls among older adults with hypertension. As falls
are associated with substantial morbidity and mortality in older treated adults with hypertension, clinicians are
wary about intensifying antihypertensive medication in this population. Clinic blood pressure (BP) is among the
factors used by health care providers in the decision-making regarding antihypertensive medication
intensification. However, BP outside of the clinic setting can be lower than clinic BP and have large fluctuations
throughout the day. Therefore, out-of-clinic BP may be a more clinically relevant physiologic measure linked to
falls. Ambulatory BP monitoring (ABPM) quantifies out-of-clinic BP over a 24-hour period in the naturalistic
setting. ABPM can be used to assess the white coat effect, defined as the difference between clinic and
ambulatory BP, and white coat hypertension, defined as having elevated clinic but non-elevated ambulatory
BP. ABPM can also assess the magnitude of BP variability over 24 hours as well as postprandial BP decline,
the BP decline following meals. The aims of this study are to determine whether a larger white coat effect and
BP variability over 24 hours and secondarily, postprandial BP decline are associated with an increased risk of
falls among older treated adults with hypertension. Further, the study will also identify the demographic and
clinical factors associated with a larger white coat effect, BP variability, and postprandial BP decline. To
address these aims, we will enroll 1057 patients 65+ years of age from Kaiser Permanente Southern California
who have a history of hypertension and are taking antihypertensive medication. Demographics, clinical
characteristics, geriatric assessments (frailty, impaired cognition, mobility, functional impairment and physical
performance), and 24-hour ABPM will be performed at baseline. Falls and serious fall injuries (fractures, joint
dislocations, and brain injuries) will be assessed prospectively over a 1-year follow-up period. When deciding
to intensify antihypertensive medication, health care providers and patients are faced with trade-offs between
the potential for preventing CVD events vs. the possibility of increasing falls. As out-of-clinic BP may be a more
relevant physiologic measure of fall risk than clinic BP, ABPM holds great promise as a tool to support
individualized care for older treated adults with hypertension. ABPM may have an essential role for identifying
older adults with hypertension in whom antihyp...

## Key facts

- **NIH application ID:** 10163696
- **Project number:** 5R01HL136445-04
- **Recipient organization:** KAISER FOUNDATION RESEARCH INSTITUTE
- **Principal Investigator:** Kristi Reynolds
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2021
- **Award amount:** $749,930
- **Award type:** 5
- **Project period:** 2018-07-01 → 2024-05-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10163696

## Citation

> US National Institutes of Health, RePORTER application 10163696, Ambulatory blood pressure and falls in older treated patients with hypertension (5R01HL136445-04). Retrieved via AI Analytics 2026-05-22 from https://api.ai-analytics.org/grant/nih/10163696. Licensed CC0.

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