A Behavioral Intervention To Improve Hypertension Control In Veterans
A Behavioral Intervention to Improve Hypertension Control in Veterans
調査の概要
詳細な説明
We propose a randomized controlled trial to evaluate the effect of telephone-delivered interventions (SMI and HEI) to improve BP control.
Veterans with uncontrolled hypertension (n=533) will be randomized equally to 3 groups: 1) The SMI will use the Transtheoretical model (TTM) as the unifying framework. Veterans will receive TTM stage-matched counseling for exercise, diet, and medications via monthly counseling sessions. A social worker (SW) will assess each participant's behavior and deliver the appropriate tailored SMI based on their stage of change, decisional balance, self-efficacy and the skills model questions. 2) The HEI group receives monthly telephone calls by a SW during which they will receive education about hypertension management. 3) The UC group participates in all the in-person visits but does not receive monthly calls.
There will be an initial 6-month active intervention phase followed by a 6 month monitoring phase to assess sustainability. All participants will visit the VAMC's at baseline and at 3, 6, and 12 months. Outcomes of interest include BP; adherence (to diet, exercise and medications); quality of life; satisfaction; acceptability; cost and cost-effectiveness. Patients will be blinded to which of the intervention arms (SMI or HEI) they are in, SW's will be blinded to patient's BP and staff measuring outcomes will be blinded to study assignment. The study will be analyzed using longitudinal data analysis methods using an intention to treat strategy.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
-
-
New York
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New York、New York、アメリカ、10010
- VA New York Harbor Health Care System
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-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Patients receiving continuity of care in the outpatient clinics will be eligible. This will be operationalized as 2 visits in the previous year.
- Adults (= 21 years) with hypertension, on antihypertensive medication for = 1 year, and who have current uncontrolled BP will be enrolled.
Patients with CVD:
- chronic stable angina
- unstable angina
- uncomplicated myocardial infarction
- coronary artery bypass surgery
- percutaneous coronary angioplasty
- atherectomy or stent placement
- chronic stable angina pectoris
- stable Class I or Class II congestive heart failure
- stroke
- peripheral vascular disease
will be entered into the study if the CVD event or diagnosis occurred = 6 months ago.
Exclusion Criteria:
Patients with limited life expectancy (< 1 year) due to severe co-existing non-CVD disease such as:
- terminal illnesses such as terminal cancer
- CVD < 6 months ago
- Class III or IV CHF
- severe psychiatric illness such as psychosis
- manic depression
- alcohol abuse (> 21 drinks/week)
- serious chronic conditions like AIDS
- tuberculosis
- lupus
- and end-stage renal failure
will be excluded.
- Other exclusions include inability to understand English
- Lack of a landline telephone
- Unable to follow the study protocol
- Recent major surgery (< 3 months)
- Patients who are temporarily in the area and plan to move in < 1 year or will not be available for follow-up
- Those unable to provide informed consent.
- All patients excluded and reason for exclusion will be recorded.
- Prior to recruitment, each patient will be informed about the study and informed consent obtained.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:Stage-matched intervention (SMI)
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Stage-matched intervention
Health Education Intervention
Usual Care
|
|
アクティブコンパレータ:Health Education Intervention (HEI)
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Stage-matched intervention
Health Education Intervention
Usual Care
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|
介入なし:Usual Care (UC)
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Blood Pressure Control
時間枠:6 months
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Blood pressure Control at 6 months
|
6 months
|
|
Systolic Blood Pressure
時間枠:6 months
|
Mean systolic Blood Pressure
|
6 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in Proportion With BP Under Control From Baseline to 6 Months
時間枠:6 months
|
6 months
|
|
|
Change in Systolic Blood Pressure From Baseline to 6 Months
時間枠:Baseline and 6 months
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Baseline and 6 months
|
|
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Change in Number of Cardio Exercise Hours From Baseline to 6 Months
時間枠:baseline and 6 months
|
baseline and 6 months
|
|
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Change in Morisky Score From Baseline to 6 Months
時間枠:baseline and 6 months
|
Morkisy medication adherence self-report questionnaire, a 4-item questionnaire scored from 0-4.
A score of 4 is considered most adherent, and scores of less than 4 are defined as nonadherent
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baseline and 6 months
|
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Diet Stage of Change
時間枠:6 months
|
The stages of change were: precontemplation, or no plans to adhere in <6 months; contemplation, or plans to adhere in 1-6 months; preparation, or plans to adhere within 1 month; action, or adherence for <6 months; and maintenance, or adherence for ≥ 6 months.
Patients were considered adherent to diet if they reported eating the appropriate diet for hypertension (low in salt and fat with fruits, vegetables, and low-or non-fat dairy products) at least 6 days per week.
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6 months
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Exercise Stage of Change
時間枠:6 months
|
The stages of change were: precontemplation, or no plans to adhere in <6 months; contemplation, or plans to adhere in 1-6 months; preparation, or plans to adhere within 1 month; action, or adherence for <6 months; and maintenance, or adherence for ≥ 6 months.
Exercise adherence was defined as self-reported aerobic exercise for at least 3 days per week for at least 20 minutes each time.
We used the lower threshold for exercise adherence due to our patient population with multiple comorbidities, consistent with Federal guidelines for older adults with chronic conditions.
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6 months
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Medication Stage of Change
時間枠:6 months
|
The stages of change were: precontemplation, or no plans to adhere in <6 months; contemplation, or plans to adhere in 1-6 months; preparation, or plans to adhere within 1 month; action, or adherence for <6 months; and maintenance, or adherence for ≥ 6 months.
Medication adherence was defined as self-report of taking BP medications as prescribed for at least 6 days per week.
|
6 months
|
協力者と研究者
捜査官
- 主任研究者:Sundar Natarajan, MD MSc、VA New York Harbor Health Care System
出版物と役立つリンク
一般刊行物
- Ulmer M, Robinaugh D, Friedberg JP, Lipsitz SR, Natarajan S. Usefulness of a run-in period to reduce drop-outs in a randomized controlled trial of a behavioral intervention. Contemp Clin Trials. 2008 Sep;29(5):705-10. doi: 10.1016/j.cct.2008.04.005. Epub 2008 May 6.
- Friedberg JP, Lipsitz SR, Natarajan S. Challenges and recommendations for blinding in behavioral interventions illustrated using a case study of a behavioral intervention to lower blood pressure. Patient Educ Couns. 2010 Jan;78(1):5-11. doi: 10.1016/j.pec.2009.04.009. Epub 2009 Jun 13.
- Friedberg JP, Rodriguez MA, Watsula ME, Lin I, Wylie-Rosett J, Allegrante JP, Lipsitz SR, Natarajan S. Effectiveness of a tailored behavioral intervention to improve hypertension control: primary outcomes of a randomized controlled trial. Hypertension. 2015 Feb;65(2):440-6. doi: 10.1161/HYPERTENSIONAHA.114.03483. Epub 2014 Nov 17.
- Rodriguez MA, Wang B, Hyoung S, Friedberg J, Wylie-Rosett J, Fang Y, Allegrante JP, Lipsitz SR, Natarajan S. Sustained Benefit of Alternate Behavioral Interventions to Improve Hypertension Control: A Randomized Clinical Trial. Hypertension. 2021 Jun;77(6):1867-1876. doi: 10.1161/HYPERTENSIONAHA.120.15192. Epub 2021 May 12.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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