Household Air PollutionP3NCT03617952
P3 Ghana Cookstove Study
A study testing P3 Bio Intervention in people with Household Air Pollution and Behavior, Social, run by University of Colorado, Denver.
Trial summary
Background: Despite their potential health and social benefits, adoption and use of improved cookstoves has been low throughout much of the world. Explanations for low adoption rates of these technologies include prices that are not affordable for the target populations, limited opportunities for households to learn… Read more about this study
- Who is it for?
- Ages 18 to 55 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Household Air Pollution, Behavior, Social
- What is being tested?
- P3 Bio Intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 300 participants
- Where
- No sites listed yet
- Study dates
- 1 Sep 2015to 31 Dec 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 55 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Classified as "rural"
- Uses biofuel as main cooking fuel source
- Has women in household aged 18-55 and at least one child under five
Who cannot join
- Clusters that are close to the S1 clusters, creating a set of clusters far enough from the original R group that will create the S2 cluster.
About this study
Official title: Prices, Peers, and Perceptions: Field Experiments on Technology Adoption in the Context of Improved Cookstoves
Background:
Despite their potential health and social benefits, adoption and use of improved cookstoves has been low throughout much of the world. Explanations for low adoption rates of these technologies include prices that are not affordable for the target populations, limited opportunities for households to learn about cookstoves through peers, and perceptions that these technologies are not appropriate for local cooking needs. The P3 project employs a novel experimental design to explore each of these factors and their interactive effects on cookstove demand, adoption, use and exposure outcomes.
Read more
Methods:
The P3 study is being conducted in the Kassena-Nankana Districts of Northern Ghana. Leveraging an earlier improved cookstove study that was conducted in this area, the central design of the P3 biomass stove experiment involves offering stoves at randomly varying prices to peers and non-peers of households that had previously received stoves for free. Using household surveys, electronic stove use monitors, and low-cost, portable monitoring equipment, we measure how prices and peers' experience affect perceptions of stove quality, the decision to purchase a stove, use of improved and traditional stoves over time, and personal exposure to air pollutants from the stoves.
Discussion:
The challenges that public health and development communities have faced in spreading adoption of potentially welfare-enhancing technologies, like improved cookstoves, have highlighted the need for interdisciplinary, multisectoral approaches. The design of the P3 project draws on economic theory, public health practice, engineering, and environmental sciences, to more fully grasp the drivers and barriers to expanding access to and uptake of cleaner stoves. Our partnership between academic institutions, in the US and Ghana, and a local environmental non-governmental organization creates unique opportunities to disseminate and scale up lessons learned.
- Conditions
- Household Air Pollution, Behavior, Social
- Being tested
- P3 Bio Intervention
- Keywords
- Cookstoves, Household Air Pollution, Behavior Change, Global Health
- Medical subject headings
- Social Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
P3 Bio InterventionBehavioural
Two types of improved biomass burning cookstoves (ACE1 and Greenway Jumbo) are offered to participants in both arms at varying prices.
| Study group | Role | What they receive |
|---|---|---|
| S1 (Peer) group | Experimental | S1 group households located in 25 clusters that were included in a prior cookstove study: selected households are nearest neighbors (peers) of households who received free stoves in that prior study. This group is used to represent a potentially high peer influence on the adoption of improved cookstoves.
The P3 Bio Intervention is implemented in this group. Receives: Behavioral: P3 Bio Intervention |
| S2 (Non-Peer) Group | Experimental | S2 group households are located in 25 clusters randomly selected from the area of the K-N Districts more than 1 km from the S1 clusters. This group will have minimal prior knowledge of the cookstoves through peers.
The P3 Bio Intervention is implemented in this group. Receives: Behavioral: P3 Bio Intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Stove Purchases | Number of households that order stoves and complete payments
Number of households in each arm that place orders for and subsequently complete all payments on the two types of stoves.
Measured: up to 13 months
Secondary outcomes (3)
Cooking Behaviors | Household use of both traditional and improved cookstoves over time
Use of traditional and improved stoves over time across intervention arms.
Measured: up to 13 months
Perceptions of Stove Quality | Smoke production, efficiency, ease of use, quality of food, etc.
Likert-scale and subjective expectation questions measuring perceptions of stove quality / performance for both stove types along multiple dimensions. Example scale question: "How much smoke do you think the ACE1 stove would produce?" Response options: 1 = A lot less smoke than a 3 stone fire, 2 = A little less smoke than a 3 stone fire; 3 = About the same amount of smoke as a 3 stone fire; 4 = A little more smoke than a 3 stone fire; 5 = A lot more smoke than a 3 stone fire; 99 = Don't know / not sure.
Measured: up to 13 months
Exposure to CO and PM 2.5
Kitchen concentrations of and personal exposure to carbon monoxide (CO) and particular matter (PM2.5) among study participants
Measured: up to 13 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Aug 2018
- Study start1 Sep 2015
- Primary completion1 Apr 2019
- Study completion31 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Household Air PollutionStudies of the same condition, open and under way.
- More trials run by University of Colorado, DenverThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 300 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Colorado, Denver
- Sponsor type
- University, hospital or other
- Collaborators
- University of Colorado, Boulder, North Carolina State University, Navrongo Health Research Centre, Ghana, U.S. National Science Foundation, National Institutes of Health (NIH)
- Responsible party
- Sponsor
- Investigators
- Katherine L Dickinson, PhD, Principal investigator, Unviersity of Colorado, Aurora
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03617952
- Sponsor's protocol ID
- 15-0359
- Other IDs
- SES 1528811
- Acronym
- P3
- Status last verified
- Aug 2023
- First submitted
- 3 Jul 2018
- Last updated
- 15 Aug 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Survey Data; Personal exposure, proximity, and air quality data; and short term stove use and proximity data will have team access only to full data set with identifiers. De-identified data will be open access with registration and a statement of interest. Stove use data will be open access with registration and a statement of interest.
Publications
Dickinson KL, Dalaba M, Brown ZS, Alirigia R, Coffey ER, Mesenbring E, Achazanaga M, Agao D, Ali M, Kanyomse E, Awaregya J, Adagenera CA, Aburiya JBA, Gubilla B, Oduro AR, Hannigan MP. Prices, peers, and perceptions (P3): study protocol for improved biomass cookstove project in northern Ghana. BMC Public Health. 2018 Oct 29;18(1):1209. doi: 10.1186/s12889-018-6116-z.
PubMed 30373560
Study at a glance
From the registry record, last updated by the sponsor on 15 Aug 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prices, Peers, and Perceptions: Field Experiments on Technology Adoption in the Context of Improved Cookstoves
- ClinicalTrials.gov ID
- NCT03617952
- Acronym / sponsor ID
- P3 / 15-0359
- Conditions
- Household Air Pollution, Behavior, Social
- Keywords
- Cookstoves, Household Air Pollution, Behavior Change, Global Health
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 300 participants (actual)
- Lead sponsor
- University of Colorado, DenverUniversity, hospital or other
- Collaborators
- University of Colorado, Boulder, North Carolina State University, Navrongo Health Research Centre, Ghana, U.S. National Science Foundation, National Institutes of Health (NIH)
- Study start
- 1 Sep 2015 (actual)
- Primary completion
- 1 Apr 2019 (actual)
- Study completion
- 31 Dec 2021 (actual)
- First posted
- 7 Aug 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Background:
Despite their potential health and social benefits, adoption and use of improved cookstoves has been low throughout much of the world. Explanations for low adoption rates of these technologies include prices that are not affordable for the target populations, limited opportunities for households to learn about cookstoves through peers, and perceptions that these technologies are not appropriate for local cooking needs. The P3 project employs a novel experimental design to explore each of these factors and their interactive effects on cookstove demand, adoption, use and exposure outcomes.
Methods:
The P3 study is being conducted in the Kassena-Nankana Districts of Northern Ghana. Leveraging an earlier improved cookstove study that was conducted in this area, the central design of the P3 biomass stove experiment involves offering stoves at randomly varying prices to peers and non-peers of households that had previously received stoves for free. Using household surveys, electronic stove use monitors, and low-cost, portable monitoring equipment, we measure how prices and peers' experience affect perceptions of stove quality, the decision to purchase a stove, use of improved and traditional stoves over time, and personal exposure to air pollutants from the stoves.
Discussion:
The challenges that public health and development communities have faced in spreading adoption of potentially welfare-enhancing technologies, like improved cookstoves, have highlighted the need for interdisciplinary, multisectoral approaches. The design of the P3 project draws on economic theory, public health practice, engineering, and environmental sciences, to more fully grasp the drivers and barriers to expanding access to and uptake of cleaner stoves. Our partnership between academic institutions, in the US and Ghana, and a local environmental non-governmental organization creates unique opportunities to disseminate and scale up lessons learned.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| S1 (Peer) group | Experimental | Behavioral: P3 Bio InterventionS1 group households located in 25 clusters that were included in a prior cookstove study: selected households are nearest neighbors (peers) of households who received free stoves in that prior study. This group is used to represent a potentially high peer influence on the adoption of improved cookstoves. The P3 Bio Intervention is implemented in this group. |
| S2 (Non-Peer) Group | Experimental | Behavioral: P3 Bio InterventionS2 group households are located in 25 clusters randomly selected from the area of the K-N Districts more than 1 km from the S1 clusters. This group will have minimal prior knowledge of the cookstoves through peers. The P3 Bio Intervention is implemented in this group. |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Classified as "rural"
- Uses biofuel as main cooking fuel source
- Has women in household aged 18-55 and at least one child under five
Key exclusion criteria (1 listed)
- Clusters that are close to the S1 clusters, creating a set of clusters far enough from the original R group that will create the S2 cluster.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| P3 Bio InterventionTwo types of improved biomass burning cookstoves (ACE1 and Greenway Jumbo) are offered to participants in both arms at varying prices. | Behavioural | S1 (Peer) group, S2 (Non-Peer) Group |
Primary outcome
Stove Purchases | Number of households that order stoves and complete payments
Time frame: up to 13 months
Number of households in each arm that place orders for and subsequently complete all payments on the two types of stoves.
3 secondary outcomes
Cooking Behaviors | Household use of both traditional and improved cookstoves over time
Time frame: up to 13 months
Perceptions of Stove Quality | Smoke production, efficiency, ease of use, quality of food, etc.
Time frame: up to 13 months
Exposure to CO and PM 2.5
Time frame: up to 13 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Aug 2023.
- Derived from this study: PubMed 30373560Dickinson KL, Dalaba M, Brown ZS, Alirigia R, Coffey ER, Mesenbring E, Achazanaga M, Agao D, Ali M, Kanyomse E, Awaregya J, Adagenera CA, Aburiya JBA, Gubilla B, Oduro AR, Hannigan MP. Prices, peers, and perceptions (P3): study protocol for improved biomass cookstove project in northern Ghana. BMC Public Health. 2018 Oct 29;18(1):1209. doi: 10.1186/s12889-018-6116-z.
- Individual participant dataSharing planned: Yes. Survey Data; Personal exposure, proximity, and air quality data; and short term stove use and proximity data will have team access only to full data set with identifiers. De-identified data will be open access with registration and a statement of interest. Stove use data will be open access with registration and a statement of interest.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Katherine L Dickinson, PhD principal investigator
Unviersity of Colorado, Aurora
Questions about this trial
What is this clinical trial studying?
A study testing P3 Bio Intervention in people with Household Air Pollution and Behavior, Social, run by University of Colorado, Denver.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 15 Aug 2023. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Stove Purchases | Number of households that order stoves and complete payments (time frame: up to 13 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03617952, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Aug 2023.