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Koa Family: California's Obesity Prevention Project

Koa Family: A Study of Improving Diet, Physical Activity, Weight, and Well-being Among Low-income Mothers in California

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03605888
Enrollment
149
Registered
2018-07-30
Start date
2018-08-16
Completion date
2020-06-26
Last updated
2020-07-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diet Habit, Overweight and Obesity, Physical Activity, Weight Loss

Keywords

Nutrition

Brief summary

The purpose of this study is to learn if a new whole-person lifestyle program improves the health of low-income mothers.

Detailed description

This study will employ a randomized controlled trial (RCT) design to test a newly developed obesity reduction program, Koa Family, among overweight or obese mothers. An exploratory, uncontrolled study will assess its acceptance among normal-weight mothers. Koa Family consists of a 6-month whole-person lifestyle program (WPLP) combined with text messaging and social media support and the opportunity to take part in a neighborhood tree planting campaign. This multi-pronged program is intended to reduce weight in the short-term while building self-empowerment and connections to community resources so that participants can sustain long-term weight loss. Koa Family will be implemented in select communities in Yolo and Sacramento counties, California. Overweight or obese study participants will be randomized to either an intervention or control group; all normal-weight participants will be assigned to the intervention. All participants will complete a survey and have their height and weight measured at baseline and 3-, 6-, 9- and 12-month follow-up. Intervention participants will also take part in a focus group at the 3-month midpoint of the intervention.

Interventions

BEHAVIORALKoa Family

Koa Family is a 6-month program consisting of a whole-person lifestyle program (WPLP) combined with text messaging and social media support and a neighborhood tree planting campaign. The WPLP will bring groups of 8 to 10 mothers living in the same community together for 22 weekly 90-minute support sessions. Each session will cover a topic on whole-person living, including healthy eating, physical activity, stress reduction, coping, and well-being. Participants will receive brief text messages on their cell phones to encourage healthy lifestyle choices. Participants also will be invited to join a secret Facebook group where they can support one another in healthy lifestyle change. Finally, participants will have an opportunity to take part in a neighborhood tree planting campaign.

Sponsors

California Department of Health Services
CollaboratorOTHER
United States Department of Agriculture (USDA)
CollaboratorFED
California Department of Social Services
CollaboratorOTHER_GOV
CAL FIRE
CollaboratorOTHER
University of California, Davis
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 47 Years
Healthy volunteers
No

Inclusion criteria

* Comfortable speaking and reading English * Primary caregiver for ≥1 child, aged 3-17, who lives at home * Living in a low-income household (at or below 185% of the Federal Poverty Level) * Living in the study site catchment area * Ability to receive and send text messages * BMI ≥ 25 kg/m2 for RCT study * BMI ≥18.5 and \<25 kg/m2 for exploratory study

Exclusion criteria

* Pregnant * Breastfeeding * Within 2 years postpartum * Life-threatening illness * Institutionalization (i.e., not free-living in the community) * Moderate to severe mental illness * Receiving nutrition therapy from a health or health care provider (licensed or unlicensed) * Had or are considering bariatric surgery * Medically diagnosed eating disorder * Taking medication that affects weight * Thyroid disease * Type 1 or Type 2 diabetes without medical clearance from the participant's physician * Plans to move away from study site catchment area during the one-year study period

Design outcomes

Primary

MeasureTime frameDescription
Change in Body Mass Index (kg/m2)12 monthsObjectively measured

Secondary

MeasureTime frameDescription
Change in diet quality12 monthsFruit and vegetable consumption and other indicators calculated from 24-hour dietary recall
Change in physical activity12 monthsSelf-report moderate-intensity equivalent minutes per week calculated from the BRFSS Physical Activity Rotating Core questionnaire
Change in health-related quality of life12 monthsSummary score from SF-36v2 instrument
Cost effectiveness12 monthsDollars per change in BMI and quality-adjusted life-year (QALY)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026