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A Personalized Intervention to Increase Environmental Health Literacy and Readiness to Change in a Northern Nevada Population: Effects of Environmental Chemical Exposure Report-Back

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  • Johanna R. Rochester

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Carol F. Kwiatkowski

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Iva Neveux

    (Healthy Nevada Project, Renown Health, Reno, NV 89557, USA
    Department of Internal Medicine, University of Nevada, Reno, NV 89557, USA)

  • Shaun Dabe

    (Healthy Nevada Project, Renown Health, Reno, NV 89557, USA)

  • Katherine M. Hatcher

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Michael Kupec Lathrop

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Eric J. Daza

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Brenda Eskenazi

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

  • Joseph J. Grzymski

    (Healthy Nevada Project, Renown Health, Reno, NV 89557, USA
    Department of Internal Medicine, University of Nevada, Reno, NV 89557, USA)

  • Jenna Hua

    (Million Marker Wellness, Inc., Berkeley, CA 94704, USA)

Abstract

Background: Interventions are needed to help people reduce exposure to harmful chemicals from everyday products and lifestyle habits. Report-back of individual exposures is a potential pathway to increasing environmental health literacy (EHL) and readiness to reduce exposures. Objectives: Our objective was to determine if report-back of endocrine-disrupting chemicals (EDCs) can reduce EDC exposure, increase EHL, and increase readiness to change (i.e., to implement EDC exposure-reduction behaviors). Methods: Participants in the Healthy Nevada Project completed EHL and readiness-to-change surveys before ( n = 424) and after ( n = 174) a report-back intervention. Participants used mail-in kits to measure urinary biomarkers of EDCs. The report-back of results included urinary levels, information about health effects, sources of exposure, and personalized recommendations to reduce exposure. Results: EHL was generally very high at baseline, especially for questions related to the general pollution. For questions related to chemical exposures, responses varied across several demographics. Statistically reliable improvements in EHL responses were seen after report-back. For readiness to change, 72% were already or planning to change their behaviors. Post-intervention, women increased their readiness ( p = 0.053), while men decreased ( p = 0.007). When asked what challenges they faced in reducing exposure, 79% cited not knowing what to do. This dropped to 35% after report-back. Participants with higher propylparaben were younger ( p = 0.03) and women and participants who rated themselves in better health had higher levels of some phthalates ( p = 0.02–0.003 and p = 0.001–0.003, respectively). After report-back, monobutyl phthalate decreased among the 48 participants who had valid urine tests before and after the intervention ( p < 0.001). Conclusions: The report-back intervention was successful as evidenced by increased EHL behaviors, increased readiness to change among women, and a decrease in monobutyl phthalate. An EHL questionnaire more sensitive to chemical exposures would help differentiate high and low literacy. Future research will focus on understanding why men decreased their readiness to change and how the intervention can be improved for all participants.

Suggested Citation

  • Johanna R. Rochester & Carol F. Kwiatkowski & Iva Neveux & Shaun Dabe & Katherine M. Hatcher & Michael Kupec Lathrop & Eric J. Daza & Brenda Eskenazi & Joseph J. Grzymski & Jenna Hua, 2024. "A Personalized Intervention to Increase Environmental Health Literacy and Readiness to Change in a Northern Nevada Population: Effects of Environmental Chemical Exposure Report-Back," IJERPH, MDPI, vol. 21(7), pages 1-22, July.
    • Handle: RePEc:gam:jijerp:v:21:y:2024:i:7:p:905-:d:1432936
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    References listed on IDEAS

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    1. Monica D. Ramirez-Andreotta & Julia Green Brody & Nathan Lothrop & Miranda Loh & Paloma I. Beamer & Phil Brown, 2016. "Improving Environmental Health Literacy and Justice through Environmental Exposure Results Communication," IJERPH, MDPI, vol. 13(7), pages 1-27, July.
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