Poster Topical Area: Nutrition Education and Behavioral Sciences

Location: Auditorium

Poster Board Number: 203

P18-035 - Evaluation of the Shaping Healthy Choices Program through Nutrition Knowledge Data and Comparison to an Extender Model Pilot

Sunday, Jun 10
8:00 AM – 6:00 PM

Objectives: To assess the effectiveness of the Shaping Healthy Choices Program (SHCP) in improving nutrition knowledge in 4th-6th grade youth and to pilot an extender model of nutrition education in the SHCP.

Methods: Nutrition knowledge was assessed pre and post with a 35-item questionnaire. In 14 classrooms, pre and post scores were unmatched; aggregate nutrition knowledge was assessed with unpaired t-tests. An extender model was piloted in 4 classrooms, and was compared to direct education (4 classrooms) and control (1 classroom receiving no SHCP). The same questionnaire was used; individual data were matched pre and post. Height and weight were assessed pre and post and BMI percentile calculated. Paired t-tests and Analysis of Covariance (ANCOVA) measured differences in nutrition knowledge and BMI percentile using SPSS 24.

Results: In the aggregate nutrition knowledge group, 368 and 373 students completed pre- and post-tests, respectively. Nutrition knowledge increased from pre (20.3+3.9) to post (21.8+4.5; p<.001). In the extender pilot, 147 students completed pre and post nutrition knowledge (direct education n=47, extender n=75, control n=25). Nutrition knowledge increased from pre to post in the direct education (pre=17.7+4.1; post=21.0+5.4; p<.001), and extender (pre=20.7+3.6; post=23.1+3.5; p<.001) groups, but not in the control group (pre=21.3+3.9; post=22.4+3.9; p=.213); ANCOVA yielded no significant difference between groups (p=.249). Pre and post anthropometric data were collected from 138 students (direct education n=46, extender n=70, control n=22). BMI percentile decreased from pre to post in the direct education group (pre=78.8+21.46; post=74.0+21.5; p=.01), but not in the extender (pre=85.3+17.9; post=83.9+20.3; p=.82) or control groups (pre=73.6+27.9; post=73.4+27.3; p=.86). ANCOVA yielded a significant difference between the three groups at post (p=.024). Post-hoc analysis indicated the direct education group experienced a decrease in BMI percentile compared to control (p=.042).

Conclusions: The SHCP is effective in increasing nutrition knowledge, including in the extender model. These data indicate that BMI percentile did not improve in the extender group, however it is possible the uneven samples between groups may have resulted in the non-significant results.




Funding Source: Funding was provided in part by UC ANR Competitive Grant #15-3723, USDA NIFA, Hatch project 221082, and UC CalFresh.

CoAuthors: Melanie Gerdes – University of California Davis, Department of Nutrition, Center for Nutrition in Schools; Kelley Brian – University of California Cooperative Extension Placer and Nevada Counties; Chutima Ganthavorn – University of California Cooperative Extension Riverside County; David Ginsburg – UC CalFresh Nutrition Education Program; Shannon Klisch – University of California Cooperative Extension San Luis Obispo and Santa Barbara Counties; Suzanne Lawry-Hall – University of California Cooperative Extension Butte, Glenn, Yuba, Sutter and Colusa Counties; Anna Martin – University of California Cooperative Extension San Joaquin County; Jona Pressman – University of California Cooperative Extension Butte, Glenn, Sutter, Yuba and Colusa Counties; Chelsey Slattery – University of California Cooperative Extension Butter, Glenn, Sutter, Yuba and Colusa Counties; Katherine Soule – University of California Cooperative Extension San Luis Obispo and Santa Barbara Counties; Deepa Srivastava – University of California Cooperative Extension Tulare County; Sheri Zidenberg-Cherr – University of California Davis, Department of Nutrition, Center for Nutrition in Schools, University of California Agriculture and Natural Resources; Rachel Scherr – University of California Davis, Department of Nutrition, Center for Nutrition in Schools

Anna M. Jones

Postdoctoral Scholar
University of California Davis, Department of Nutrition, Center for Nutrition in Schools
Davis, California