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| ID | Type | Description | Link |
|---|---|---|---|
| OT2HL158287 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Heart, Lung, and Blood Institute (NHLBI) | NIH |
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Extreme heat events pose serious health risks, especially for communities with limited access to cooling, transportation, or social support. This study pilots and tests HEATwise, a heat preparedness program delivered at trusted community centers in Lake County, California, serving older adults, Tribal members, and people experiencing housing or economic hardship. HEATwise is a 12-week program which includes a group workshop on heat risks and preparedness, one-on-one resource navigation, a community celebration event, and a cooling and emergency supply kit. The pilot phase (2026) will assess feasibility and acceptability at three sites with approximately 60 participants. The full trial (2027-2028) will randomly assign eight sites to receive HEATwise immediately or after a delay, measuring whether the program increases protective behaviors, reduces heat-related symptoms, and strengthens resilience over 12 months.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Immediate HEATWise | Experimental | Intervention shortly after enrollment |
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| Delayed HEATWise) | Other | Treatment as usual. These sites will offer the HEATwise program the following year, after the intervention is complete, and all waitlist control participants will be invited to participate. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| CHARM HeatWise | Behavioral | HEATWise consists of structured, facilitator-led training sessions on extreme heat preparedness and response, distribution of heat resilience kits, and community engagement activities designed to promote protective behaviors. The intervention is delivered at the cluster (site) level in community-based settings and focuses on reducing risk of heat-related illness and improving individual and community resilience. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Symptoms | Change in self-reported heat-illness symptoms: "Self-reported heat stress measure". Range 0-8, with higher scores indicating higher heat stress | 3-months post-intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Change in individual and community resilience scores: "Communities Advancing Resilience Toolkit" | 35 items community resilience measure, outcome is mean score from 1-5 (strongly disagree-strongly agree); 19 items individual resilience measure - outcome is mean score from 1-5 (strongly disagree-strongly agree) | Baseline to 15-months post-enrollment (12-month follow-up period) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Scarlet Sands-Bliss, MS | Contact | 510-285-5500 | info@trackingcalifornia.org |
| Name | Affiliation | Role |
|---|---|---|
| Michelle Wong | Public Health Institute | Principal Investigator |
| Susan Paulukonis | Public Health Institute | Principal Investigator |
| Sarah Ryan |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Big Valley Rancheria | Recruiting | Lakeport | California | 95453 | United States |
De-identified individual participant data underlying the primary and secondary outcomes, along with codebooks and metadata, will be shared via ICPSR following publication of the primary results or study completion, in accordance with the approved Data Management and Sharing Plan.
Following publication of the primary results or upon study completion, consistent with the approved Data Management and Sharing Plan.
Data will be available to qualified researchers through ICPSR under applicable data use agreements.
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| ID | Term |
|---|---|
| D018882 | Heat Stress Disorders |
| ID | Term |
|---|---|
| D014947 | Wounds and Injuries |
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This study uses a cluster randomized, parallel assignment, waitlist-controlled design. Community-based sites serving rural, underserved populations are randomized to either immediate implementation of the Helping Everyone Adapt Together-Wise (HEATWise) or to a waitlist control condition. Participants at control sites complete baseline and follow-up assessments during the six-month evaluation period and receive the intervention after primary outcome data collection is completed. Randomization occurs at the site level to reduce contamination, and analyses account for clustering.
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| Big Valley Band of Pomo Indians |
| Principal Investigator |