Application of zero-inflated Poisson model with heterogeneous random effects to evaluate the effect of oral health education on pregnant women's dental caries: A longitudinal experimental study.

Somayeh Ahmadi Gooraji, Farid Zayeri, Yeganeh Sharifnejad, Zahra Ghorbani, Marzie Deghatipour, Maryam Heydarpour Meymeh, Alireza Akbarzadeh Baghban

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Article in Dental research journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Somayeh Ahmadi GoorajiProteomics Research Center, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Farid ZayeriProteomics Research Center, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Yeganeh SharifnejadProteomics Research Center, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Zahra GhorbaniDepartment of Community Oral Health, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Marzie DeghatipourDepartment of Community Oral Health, Dental School, Zahedan University of Medical Sciences, Zahedan, Iran.

Maryam Heydarpour MeymehDepartment of Foreign Languages Education, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Alireza Akbarzadeh BaghbanProteomics Research Center, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

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6 · The paper itself

Abstract

Background: Pregnant women have poor knowledge of oral hygiene during pregnancy. One problem with the follow-up of dental caries in this group is zero accumulation in the decayed, missing, and filled teeth (DMFT) index, for which some models must be used to achieve valid results. The studied population may be heterogeneous in longitudinal studies, leading to biased estimates. We aimed to assess the impact of oral health education on dental caries in pregnant women using a suitable model in a longitudinal experimental study with heterogeneous random effects. Materials and Methods: This longitudinal, experimental research was carried out on pregnant women who visited medical centers in Tehran. The educational group (236 cases) received education for three sessions. The control group (200 cases) received only standard training. The DMFT index assessed oral and dental health at baseline, 6 months, and 24 months after delivery. The Chi-square test was used for comparing nominal variables and the Mann-Whitney Results: Data from 436 women aged 15 years and older were analyzed. Zero accumulation in the DMFT was mainly related to the filled teeth (51%). The heterogeneous ZIP model fitted better to the data. On average, the intervention group exhibited a higher rate of change in filled teeth over time than the control group ( Conclusion: The proposed ZIP model is a suitable model for predicting filled teeth in pregnant women. An educational intervention during pregnancy can improve oral health in the long-term follow-up.

Indexed as

Dental carieslongitudinal studiespregnancyzero inflation

Identifiers

PMID39188390

PMCPMC11346597

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