Warm Homes for Elder New Zealanders (WHEZ)
Warm Homes for Elder New Zealanders: a Community Trial of People With COPD
Aim
The purpose of this study is to evaluate whether fuel subsidies reduce exacerbations of COPD among people aged over 55, and therefore whether providing such subsidies is a cost-beneficial policy initiative.
The Warm Homes for Elder New Zealanders Study enrolled community-dwelling people aged over 55 with moderate or worse COPD. Prior to the study commencing the houses were insulated (if feasible, & the house-owner agreed). Data were collected on the health and energy use of the participants.
The households randomly assigned to the "early" intervention group had a subsidy to their power account their first winter in the study. The subsidy was the intervention and was designed to enable the participants, if they chose to do so, to keep their house warmer during the winter.
調査の概要
詳細な説明
Warm Homes for Elder New Zealanders (WHEZ)
Background Although there has been considerable recent work on the prevention, management and causes of Chronic Obstructive Pulmonary Disease (COPD), the contribution of housing has not been well researched. This is despite the socio-economic patterning of COPD (Maori women have the highest rate of COPD that has been recorded for any group of women), and the relationship between socio-economic deprivation and housing conditions.
It is likely that improved heating would reduce exacerbations of COPD as:
- COPD patients with the most advanced disease tend to be older people who often live on a fixed income and may be unable to afford adequate heating
- There is a high excess of winter hospitalisations in COPD patients indicating COPD exacerbations may be triggered by cold conditions.
- About one third of exacerbations of COPD are triggered by respiratory infections.
- The Housing, Insulation and Health Study demonstrated a reduction in self-reported respiratory disease after houses were insulated. Therefore improving the heating in households with a COPD patient may reduce respiratory infections and this in turn would reduce the number and severity of exacerbations.
The percentage of people over 65 in New Zealand will increase from 12% to 22% over the next 25 years. Therefore it will become increasingly important to find cost-effective ways of reducing the morbidity of the older age group. As COPD is a significant cause of morbidity amongst older people, this study investigates a potentially cost effective intervention to reduce both the likelihood of expensive hospital stays and improve the quality of life for older people.
Aim To evaluate whether fuel subsidies reduce exacerbations of COPD among people aged over 55, and therefore whether providing such subsidies is a cost-beneficial policy initiative.
Potential Benefits The potential benefits of the study include reducing the burden of disease. The patients and their caregivers may experience improved quality of life. Hospitals may experience fewer patients requiring treatment during the winter. A cost-benefit analysis will quantify the benefits.
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
-
-
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Christchurch、ニュージーランド
- Christchurch
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Wanganui、ニュージーランド
- Wanganui / Manawatu
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Wellington、ニュージーランド
- Wellington / Hutt/ Porirua
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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:
- Post Bronchodilator FEV1/FVC ratio < Lower Limit of Normal (NHanesIII)
- Post Bronchodilator FEV1 < 80% of the predicted FEV1 (NHanesIII)
OR - In the last three years either went to hospital for their COPD or took antibiotics/steriods for their COPD
Exclusion Criteria:
- Not planning to stay in the same dwelling until the end of the study
- Does not want to take part in research
- Unwilling to answer inclusion questionnaire
- Unable to communicate effectively
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：支持療法
- 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：Voucher
Receive the intervention ("Energy Voucher") the first winter enrolled in the study.
The intervention is a electricity voucher and a short pamphlet describing how to work out how much heat the voucher can buy.
|
Receive the intervention the first winter enrolled in the study.
The intervention is a electricity voucher and a short pamphlet describing how to work out how much heat the voucher can buy.
|
|
他の：Control
Receive the intervention the second winter enrolled in the study (thus "No intervention : control arm").
The intervention is a electricity voucher and a short pamphlet describing how to work out how much heat the voucher can buy.
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Do not receive the money or pamphlet in the initial study year
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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 |
時間枠 |
|---|---|
|
Moderate or severe exacerbations of COPD during winter for which hospitalisation, systemic corticosteroids and/or antibiotics are required to treat the exacerbation
時間枠：Four months
|
Four months
|
二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Severe exacerbations of COPD during winter for which hospitalisation is required to treat the exacerbation
時間枠：Four months
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Four months
|
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Moderate exacerbations of COPD during winter; which will be defined as requiring treatment with systemic corticosteroids and/or antibiotics
時間枠：Four months
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Four months
|
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All-cause hospitalisation during winter
時間枠：Four months
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Four months
|
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Temperature in the living and bedrooms during winter
時間枠：Four months
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Four months
|
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Electricity usage during winter
時間枠：Four months
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Four months
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Costs to health care system of index participant during winter
時間枠：Four months
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Four months
|
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Self-reported quality of life for index participant during winter
時間枠：Four months
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Four months
|
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Respiratory health of other people living in household during winter
時間枠：Four months
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Four months
|
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Any changes in index participant baseline lung function
時間枠：course of study ( up to 18 months)
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course of study ( up to 18 months)
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Study withdrawals due to death or greater dependency
時間枠：course of study (up to 18 months)
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course of study (up to 18 months)
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Support person burden
時間枠：course of study (up to 18 months)
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course of study (up to 18 months)
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協力者と研究者
スポンサー
捜査官
- 主任研究者：Philippa L Howden-Chapman, PhD、University of Otago
出版物と役立つリンク
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
Energy Voucherの臨床試験
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Biotronik AG完了デノボおよび再狭窄した冠動脈病変スイス, オランダ, イスラエル, スペイン, ラトビア, ドイツ, オーストリア, ベルギー, フランス, アイルランド