Trial Outcomes & Findings for Helping Hypertension Patients to Interpret Blood Pressure Readings and Motivate Blood Pressure Control (NCT NCT04485637)

NCT ID: NCT04485637

Last Updated: 2024-05-03

Results Overview

This outcome measure reflects the number of participants who measured their blood pressure as instructed, after seeing the communication (coded yes=1/no=0), as self-reported on the questionnaire

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

542 participants

Primary outcome timeframe

Questionnaire completed immediately after receiving communication

Results posted on

2024-05-03

Participant Flow

Participants were recruited through the Pitt+Me Patient Registry at the University of Pittsburgh

35 participants were eligible but did not participate in the study

Participant milestones

Participant milestones
Measure
Communication With Basic Table
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Overall Study
STARTED
188
176
178
Overall Study
COMPLETED
188
176
178
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Helping Hypertension Patients to Interpret Blood Pressure Readings and Motivate Blood Pressure Control

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Communication With Basic Table
n=188 Participants
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
n=176 Participants
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
n=178 Participants
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Total
n=542 Participants
Total of all reporting groups
Age, Continuous
49.93 Years
STANDARD_DEVIATION .80 • n=5 Participants
50.73 Years
STANDARD_DEVIATION .89 • n=7 Participants
49.46 Years
STANDARD_DEVIATION .89 • n=5 Participants
50.03 Years
STANDARD_DEVIATION .50 • n=4 Participants
Sex: Female, Male
Female
55 Participants
n=5 Participants
67 Participants
n=7 Participants
63 Participants
n=5 Participants
185 Participants
n=4 Participants
Sex: Female, Male
Male
133 Participants
n=5 Participants
109 Participants
n=7 Participants
115 Participants
n=5 Participants
357 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
44 Participants
n=5 Participants
36 Participants
n=7 Participants
41 Participants
n=5 Participants
121 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
144 Participants
n=5 Participants
140 Participants
n=7 Participants
137 Participants
n=5 Participants
421 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
8 Participants
n=4 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
5 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
52 Participants
n=5 Participants
40 Participants
n=7 Participants
34 Participants
n=5 Participants
126 Participants
n=4 Participants
Race (NIH/OMB)
White
123 Participants
n=5 Participants
132 Participants
n=7 Participants
133 Participants
n=5 Participants
388 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
6 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
9 Participants
n=4 Participants
Region of Enrollment
United States
188 participants
n=5 Participants
176 participants
n=7 Participants
178 participants
n=5 Participants
542 participants
n=4 Participants
Diagnosed with hypertension or high blood pressure
188 Participants
n=5 Participants
176 Participants
n=7 Participants
178 Participants
n=5 Participants
542 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Questionnaire completed immediately after receiving communication

This outcome measure reflects the number of participants who measured their blood pressure as instructed, after seeing the communication (coded yes=1/no=0), as self-reported on the questionnaire

Outcome measures

Outcome measures
Measure
Communication With Basic Table
n=188 Participants
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
n=176 Participants
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
n=178 Participants
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Number of Participants Who Measured Blood Pressure as Instructed (Assessed on Questionnaire)
34 Participants
47 Participants
50 Participants

PRIMARY outcome

Timeframe: Questionnaire completed immediately after receiving communication

This outcome measure reflects the number of patients who correctly answered two questions about blood pressure readings outside of the normal range, as included on the questionnaire (coded 1=both questions were answered correctly; 0=at least one of the questions was answered incorrectly). The first question asked whether or not blood pressure readings of 132/69 mmHg are considered normal (correct answer=no). The second question asked whether or not blood pressure readings of 142/91 are considered normal (correct answer=no).

Outcome measures

Outcome measures
Measure
Communication With Basic Table
n=188 Participants
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
n=176 Participants
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
n=178 Participants
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Number of Participants Who Understood Blood Pressure Readings (Assessed on Questionnaire)
166 Participants
161 Participants
155 Participants

PRIMARY outcome

Timeframe: Questionnaire completed immediately after receiving communication

On a questionnaire, participants indicated their perceptions of how healthy they think their own blood pressure is right now, giving a score on a scale ranging from 1(=very unhealthy) to 5 (=very healthy).

Outcome measures

Outcome measures
Measure
Communication With Basic Table
n=188 Participants
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
n=176 Participants
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
n=177 Participants
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Evaluation of Blood Pressure Reading (Provided on Questionnaire)
3.04 Score on a scale (1-5)
Standard Deviation .90
2.98 Score on a scale (1-5)
Standard Deviation .94
2.90 Score on a scale (1-5)
Standard Deviation .89

PRIMARY outcome

Timeframe: Questionnaire completed immediately after receiving communication

On a questionnaire, participants indicated how likely it is that they will try to lose weight, exercise more, take medication as recommended, and talk to their health care provider about improving their blood pressure readings, giving a score on a scale ranging from 1 (=very unlikely) to 5 (=very likely). This outcome measure reflects the average score across items.

Outcome measures

Outcome measures
Measure
Communication With Basic Table
n=188 Participants
Blood pressure communication showing a basic table representing only the normal range of blood pressure readings Communication with basic table: Communication showing only the normal range of blood pressure readings, which is often used but may make it hard to interpret numbers outside of the normal range
Communication With Enhanced Table
n=176 Participants
Communication showing an enhanced table (Fig 1B) with more reference information for interpreting blood pressure readings, including how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association) Communication with enhanced table: Communication with enhanced table, with reference information showing how combinations of diastolic and systolic blood pressure reflect normal, elevated and hypertension ranges (adapted from the American Heart Association)
Communication With Enhanced Graph
n=178 Participants
Communication showing an enhanced graph (adapted from Blood Pressure UK) for interpreting blood pressure readings, showing the same color-coded ranges as the enhanced table, with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis Communication with enhanced graph: Communication with enhanced graph, showing reference information about how to interpret blood pressure readings (adapted from Blood Pressure UK) with diastolic blood pressure on the x-axis and systolic blood pressure on the y-axis
Behavioral Intention Index (Provided on Questionnaire)
3.58 Score on a scale (1-5)
Standard Deviation .83
3.45 Score on a scale (1-5)
Standard Deviation .96
3.54 Score on a scale (1-5)
Standard Deviation .85

Adverse Events

Communication With Basic Table

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Communication With Enhanced Table

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Communication With Enhanced Graph

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Wandi Bruine de Bruin

University of Southern California

Phone: 4126385875

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place