Reducing Endocrine-Disrupting Chemical Exposure in Reproductive-Age Women: A Pender Model-Based RCT
Effectiveness of a Pender's Health Promotion Model-Based Behavioral Change Intervention to Reduce Exposure to Endocrine-Disrupting Chemicals in Women of Reproductive Age: A Biomarker-Supported Randomized Controlled Trial
Abstract
Background: Endocrine-disrupting chemicals (EDCs) are widely encountered in daily life and may adversely affect reproductive health. Although awareness of EDC-related risks is increasing, interventions targeting modifiable exposure-related behaviors remain limited. Theory-based behavioral interventions that address self-efficacy, perceived barriers, action planning, and maintenance of health-promoting behaviors may provide an effective approach to reducing EDC exposure.
Objective: This study aims to evaluate the effectiveness of a behavioral change intervention based on Pender's Health Promotion Model in reducing EDC exposure among women of reproductive age using both behavioral outcomes and urinary biomarkers.
Methods: This study is designed as a biomarker-supported, two-arm, parallel-group, open-label randomized controlled trial. A total of 108 women aged 18-49 years will be randomly allocated in a 1:1 ratio to an intervention or control group. The intervention group will participate in a 12-week structured behavioral change program based on Pender's Health Promotion Model. The program will include education, goal setting, action planning, self-monitoring, problem solving, social support, behavioral rehearsal, environmental restructuring, and digital reinforcement messages delivered via WhatsApp. EDC-related exposure behaviors, exposure perception, and attitudes will be assessed using structured measurement tools. Urinary bisphenol A (BPA) and selected phthalate metabolites will be measured before and after the intervention using liquid chromatography-tandem mass spectrometry. The primary outcome will be the between-group difference in post-intervention urinary BPA levels adjusted for baseline BPA. Secondary outcomes will include urinary phthalate metabolites, exposure-related behaviors, exposure perception, and attitudes toward EDCs.
Conclusion: This study will provide evidence on whether a theory-based behavioral change intervention can reduce EDC exposure at both behavioral and biological levels. Integrating Pender's Health Promotion Model with objective biomarker assessment may contribute to the development of feasible and evidence-based strategies for reducing EDC exposure among women of reproductive age.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Fatma Aslan
- Telefoonnummer: 05427760715
- E-mail: fatmaaslan62@gmail.com
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- A total of 108 women aged 18-49 years will be randomly allocated in a 1:1 ratio to an intervention or control group. The intervention group will participate in a 12-week structured behavioral change program based on Pender's Health Promotion Model. The program will include education, goal setting, action planning, self-monitoring, problem solving, social support, behavioral rehearsal, environmental restructuring, and digital reinforcement messages delivered via WhatsApp
Exclusion Criteria:
- At the beginning of the study, women who are pregnant or breastfeeding, menopausal, have cognitive or psychiatric disorders severe enough to interfere with active participation in the study or independent completion of the data collection instruments, have a diagnosed serious endocrine disorder that could significantly affect the endocrine system (e.g., pituitary disorders or Cushing's syndrome), or have participated in a structured educational program on endocrine-disrupting chemicals within the previous six months will be excluded from the study
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Onderzoek naar gezondheidsdiensten
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Geen tussenkomst: controlegroep
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Ander: interventie groep
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The intervention group will participate in a 12-week structured behavioral change program based on Pender's Health Promotion Model.
The program will include education, goal setting, action planning, self-monitoring, problem solving, social support, behavioral rehearsal, environmental restructuring, and digital reinforcement messages delivered via WhatsApp.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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Analysis of Bisphenol A (BPA) and Phthalate Metabolite Levels in Urine Samples
Tijdsspanne: 12-week
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12-week
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- HarranUU
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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