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Volume 13
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10.3390/vaccines13030251
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Article

The Tdap Vaccination in Pregnancy: Results of a Healthy Equity Audit on Coverage Trends and Their Determinants in the Reggio Emilia Province (Italy)

by
Laura Bonvicini
1,
Filomena Giulia Sileo
2,*,
Benedetta Riboldi
3,
Eufemia Bisaccia
4,
Marco Tamelli
4,
Daniela Bertani
5,
Silvia Cilloni
4,
Luca Ghirotto
6 and
Paolo Giorgi Rossi
1
1
Epidemiology Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy
2
Prenatal Medicine Unit, Obstetrics and Gynecology Unit, Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio Emilia, 41121 Modena, Italy
3
Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy
4
Public Health Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy
5
Salute Donna, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy
6
Qualitative Research Unit, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, 42122 Reggio Emilia, Italy
*
Author to whom correspondence should be addressed.
Vaccines 2025, 13(3), 251; https://doi.org/10.3390/vaccines13030251
Submission received: 29 November 2024 / Revised: 18 February 2025 / Accepted: 24 February 2025 / Published: 27 February 2025
(This article belongs to the Special Issue Maternal Vaccination and Vaccines)
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Abstract

Background/Objectives: The Italian National Plan for Vaccine Prevention 2017–2019 recommended tetanus, diphtheria, and acellular pertussis vaccines (Tdap) for pregnant women, irrespectively of their immunization history. This study aims to describe the coverage rate trends for Tdap vaccination in pregnancy and evaluate the differences by socioeconomic status. Methods: This is a retrospective analysis within a health equity audit of the Local Health Authority of Reggio Emilia on vaccination in pregnancy from 2018 (a local vaccination campaign) to 2023. All women residents in our area who gave birth during that period were included and linked to the electronic Registry of Immunization Service. The vaccination coverage in pregnant women was analyzed over time and stratified by pregnant women’s sociodemographic and obstetric characteristics. Results: The coverage of Tdap in pregnant women of the Province of Reggio Emilia increased from 15.9% in 2018 to 53.9% in 2023. The coverage was higher among Italians, women with higher educational levels (aPR 1.49 (CI95%1.41–1.57)), within 31–35 years of age (aPR 1.37 (CI95% 1.28–1.46)), occupied, nulliparous (aPR multiparous vs nulliparous: 0.76 (0.74; 0.78)), and followed in the private sector (aPR 1.07 (1.03–1.11)). Inequalities in coverage increased during the study period for women assisted in the private sector, while decreased or remained stable for women assisted in the context of public services. Conclusions: The vaccination promotion campaign in Reggio Emilia helped increase Tdap coverage in pregnancy from 16 to 53%. Nevertheless, the coverage rates of the most disadvantaged women are still several points lower than the average.
Keywords: vaccine; Tdap; immunization; pregnancy; maternal vaccination vaccine; Tdap; immunization; pregnancy; maternal vaccination

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MDPI and ACS Style

Bonvicini, L.; Sileo, F.G.; Riboldi, B.; Bisaccia, E.; Tamelli, M.; Bertani, D.; Cilloni, S.; Ghirotto, L.; Giorgi Rossi, P. The Tdap Vaccination in Pregnancy: Results of a Healthy Equity Audit on Coverage Trends and Their Determinants in the Reggio Emilia Province (Italy). Vaccines 2025, 13, 251. https://doi.org/10.3390/vaccines13030251

AMA Style

Bonvicini L, Sileo FG, Riboldi B, Bisaccia E, Tamelli M, Bertani D, Cilloni S, Ghirotto L, Giorgi Rossi P. The Tdap Vaccination in Pregnancy: Results of a Healthy Equity Audit on Coverage Trends and Their Determinants in the Reggio Emilia Province (Italy). Vaccines. 2025; 13(3):251. https://doi.org/10.3390/vaccines13030251

Chicago/Turabian Style

Bonvicini, Laura, Filomena Giulia Sileo, Benedetta Riboldi, Eufemia Bisaccia, Marco Tamelli, Daniela Bertani, Silvia Cilloni, Luca Ghirotto, and Paolo Giorgi Rossi. 2025. "The Tdap Vaccination in Pregnancy: Results of a Healthy Equity Audit on Coverage Trends and Their Determinants in the Reggio Emilia Province (Italy)" Vaccines 13, no. 3: 251. https://doi.org/10.3390/vaccines13030251

APA Style

Bonvicini, L., Sileo, F. G., Riboldi, B., Bisaccia, E., Tamelli, M., Bertani, D., Cilloni, S., Ghirotto, L., & Giorgi Rossi, P. (2025). The Tdap Vaccination in Pregnancy: Results of a Healthy Equity Audit on Coverage Trends and Their Determinants in the Reggio Emilia Province (Italy). Vaccines, 13(3), 251. https://doi.org/10.3390/vaccines13030251

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