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Widdershoven V, Reijs RP, Eskes A, Verhaegh-Haasnoot A, Hoebe CJPA. Maternal pertussis vaccination behavior: Psychosocial, attitudinal and organizational factors. Vaccine 2023; 41:7469-7475. [PMID: 37951791 DOI: 10.1016/j.vaccine.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 11/03/2023] [Accepted: 11/04/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND In December 2019, the maternal pertussis vaccination (MPV) became part of the Dutch National Immunization Program. This study aims to study MPV behavior and associated psychosocial, attitudinal and organizational factors of pertussis vaccination behavior during pregnancy in the Netherlands. METHODS We conducted a cross-sectional survey among pregnant women and recent mothers, up to six months post-partum. The primary outcome measure of this study was MPV behavior. Associations between psychosocial, attitudinal and organizational factors and MPV behavior were assessed using univariate and multivariate binary logistic regression analysis. RESULTS In total 1348 participants filled out the questionnaire, including 1282 (95.1%) MPV acceptors and 66 (4.9%) MPV refusers. The most important factors associated with MPV behavior were: attitude (aOR: 10.19; 95%CI: 4.30-24.16), outcome expectations (aOR: 8.94; 95%CI: 3.60-22.21), omission bias (aOR: 0.11; 95%CI: 0.02-0.59) and physical accessibility (aOR: 7.44; 95%CI: 3.37-16.46). CONCLUSION Pregnant women make their decision about the MPV primarily based on attitudinal and psychosocial factors, such as outcome expectations and attitude. A combination and variation of different messages, about the advantages (effectiveness) and disadvantages (side effects) of maternal vaccination, can be used in reaching pregnant women with a positive and negative attitude about the MPV. In addition, strategies to increase MPV uptake should not only focus on providing information, but also decrease experienced practical barriers, such as poor physical accessibility, in people that are intended to receive the MPV but are not getting vaccinated.
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Affiliation(s)
- Veja Widdershoven
- Department of Social Medicine, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute (CAPHRI), Maastricht University, PO Box 616, 6200 MD Maastricht, the Netherlands; Department of Sexual Health, Infectious Diseases and Environmental Health, Living Lab Public Health, Public Health Service South Limburg, PO Box 33, 6400 AA Heerlen, the Netherlands.
| | - Rianne P Reijs
- Department of Social Medicine, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute (CAPHRI), Maastricht University, PO Box 616, 6200 MD Maastricht, the Netherlands; Department of Youth Health Care, Living Lab Public Health, Public Health Service South Limburg, Heerlen, the Netherlands
| | - Annika Eskes
- Department of Youth Health Care, Public Health Service Hollands Noorden, Alkmaar, the Netherlands
| | - Amanja Verhaegh-Haasnoot
- Department of Sexual Health, Infectious Diseases and Environmental Health, Living Lab Public Health, Public Health Service South Limburg, PO Box 33, 6400 AA Heerlen, the Netherlands
| | - Christian J P A Hoebe
- Department of Social Medicine, Faculty of Health, Medicine and Life Sciences, Care and Public Health Research Institute (CAPHRI), Maastricht University, PO Box 616, 6200 MD Maastricht, the Netherlands; Department of Sexual Health, Infectious Diseases and Environmental Health, Living Lab Public Health, Public Health Service South Limburg, PO Box 33, 6400 AA Heerlen, the Netherlands; Department of Medical Microbiology, Infectious Diseases and Infection Prevention, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), PO Box 5800, 6202 AZ Maastricht, the Netherlands
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2
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Gauld N, Martin SNP, Sinclair OTR, Dumble F, Petousis-Harris H, Grant CC. Mapping the maternal vaccination journey and influencing factors for Māori women in Aotearoa New Zealand: a qualitative study. J Prim Health Care 2022; 14:352-362. [PMID: 36592768 DOI: 10.1071/hc21166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 08/31/2022] [Indexed: 01/05/2023] Open
Abstract
Introduction Uptake of maternal vaccinations (MVs) is suboptimal in Aotearoa New Zealand, particularly for Māori. Aim To describe Māori women's journeys regarding maternal pertussis and influenza vaccinations and explore influences on uptake. Methods Semi-structured interviews were conducted in Waikato, Aotearoa New Zealand, with pregnant or recently pregnant Māori women, and separately with Māori healthcare professionals (HCPs) to understand women's decisions regarding MVs and enablers and barriers to uptake. Results Nine women and nine HCPs were interviewed. Verbal communications from midwives, general practice and pharmacy strongly influenced women's journeys. Women's decisions appeared largely straight-forward, with influences including awareness, knowledge, underlying beliefs and previous MVs. Enablers for MV uptake included HCPs' discussions, pro-vaccination beliefs, and accessibility. Barriers for MV uptake included poverty (and transport), lack of awareness, insufficient knowledge of benefits, late presentation to the midwife and other commitments or challenges in the women's lives affecting prioritisation of the vaccine. Misconceptions, seasonality, and lower HCP emphasis impaired influenza vaccination uptake. Discussion With multiple barriers to accessing MVs, HCPs who see pregnant women are the primary resource to improve awareness, knowledge, and access through kōrero (discussions) with the woman and, where possible, being able to administer the vaccinations. These HCPs need to be well-informed, aware of likely concerns women may have and how to address them, encourage these discussions and preferably be trusted.
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Affiliation(s)
- Natalie Gauld
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, and School of Pharmacy, The University of Auckland, Auckland, New Zealand
| | | | | | - Felicity Dumble
- Public Health, Waikato District Health Board, Waikato, New Zealand
| | - Helen Petousis-Harris
- Department of General Practice, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Cameron C Grant
- Department of Paediatrics: Child and Youth Health, The University of Auckland, and Starship Children's Health, Auckland, New Zealand
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3
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Young A, Charania NA, Gauld N, Norris P, Turner N, Willing E. Knowledge and decisions about maternal immunisation by pregnant women in Aotearoa New Zealand. BMC Health Serv Res 2022; 22:779. [PMID: 35698133 PMCID: PMC9192336 DOI: 10.1186/s12913-022-08162-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Maternal vaccinations for influenza and pertussis are recommended in New Zealand to protect mothers and their infant from infection. However, maternal immunisation coverage in New Zealand is suboptimal. Furthermore, there is unacceptable inequitable maternal immunisation rates across the country with Māori and Pacific women having significantly lower maternal immunisation rates than those of other New Zealanders. METHODS This research set out to explore what pregnant/recently pregnant Māori and Pacific women knew about immunisation during pregnancy and what factors influenced their decision to be vaccinated. A semi-structured interview guide was developed with questions focusing on knowledge of pertussis and influenza vaccination during pregnancy and decision-making. Māori and Pacific women aged over 16 years were purposively sampled and interviewed in Dunedin and Gisborne, New Zealand between May and August 2021. Interviews were analysed following a directed qualitative content approach. Data were arranged into coding nodes based on the study aims (deductive analysis) informed by previous literature and within these participant experiences were inductively coded into themes and subthemes. RESULTS Not all women were aware of maternal vaccine recommendations or they diseases they protected against. Many underestimated how dangerous influenza and pertussis could be and some were more concerned about potential harms of the vaccine. Furthermore, understanding potential harms of infection and protection provided by vaccination did not necessarily mean women would choose to be vaccinated. Those who decided to vaccinate felt well-informed, had vaccination recommended by their healthcare provider, and did so to protect their and their infant's health. Those who decided against vaccination were concerned about safety of the vaccines, lacked the information they needed, were not offered the vaccine, or did not consider vaccination a priority. CONCLUSIONS There is a lack of understanding about vaccine benefits and risks of vaccine-preventable diseases which can result in the reinforcement of negative influences such as the fear of side effects. Furthermore, if vaccine benefits are not understood, inaccessibility of vaccines and the precedence of other life priorities may prevent uptake. Being well-informed and supported to make positive decisions to vaccinate in pregnancy is likely to improve vaccine coverage in Māori and Pacific Island New Zealanders.
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Affiliation(s)
- Amber Young
- Division of Health Sciences , Kōhatu-Centre for Hauora Māori, Otago Medical School, University of Otago, PO Box 56 , 9054, Dunedin, New Zealand.
| | - Nadia A Charania
- Department of Public Health, School of Public Health and Interdisciplinary Studies, Auckland University of Technology, Auckland, New Zealand
| | - Natalie Gauld
- Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland, New Zealand.,School of Pharmacy, University of Auckland, Auckland, New Zealand
| | - Pauline Norris
- Va'a o Tautai - Centre for Pacific Health, University of Otago, Dunedin, New Zealand
| | - Nikki Turner
- Immunisation Advisory Centre, Department of General Practice and Primary Care, University of Auckland, Auckland, New Zealand
| | - Esther Willing
- Division of Health Sciences , Kōhatu-Centre for Hauora Māori, Otago Medical School, University of Otago, PO Box 56 , 9054, Dunedin, New Zealand
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4
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Cappozzo F, Dal Zotto A, Scollo M, Bernardini D, Maria Dal Zotto A, Bonvecchio L, Tognetto G, Marinangeli S, Negrello C, Lanza P, Cocco A, Falivene P, Vianello L, Di Caprio A, Gabutti G, Saugo M. dTap vaccination uptake during pregnancy: Pregnant women-focused and health professionals-focused predictors in the Veneto Region (Italy). Vaccine 2021; 39:6913-6919. [PMID: 34711438 DOI: 10.1016/j.vaccine.2021.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/08/2021] [Accepted: 10/07/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Despite recommendations, the uptake of dTap maternal vaccination is still low in many countries. The reasons for this must be investigated both on the patient's and the healthcare professionals' sides. METHODS A record linkage study was performed linking Birth Assitance Certificates and dTap mothers' vaccination records (5183 deliveries) to describe the influence of socioeconomical and obstetrical-gynecological factors after the recommendations concerning dTap vaccination in pregnancy issued by the Italian Ministry of Health (August 2018). An interview was also administered to a subgroup of 656 new mothers on the occasion of the first vaccination of their newborns, in order to assess the dTap vaccination advice received from maternal care providers during pregnancy. A generalized linear model (binomial family, log link) was implemented to give a correct estimate of the mother's relative risk of being vaccinated. RESULTS Several pregnant women-focused factors are evident, but the most important ones are related to maternal care providers' practices: after mutual adjustment, the explicit advice towards dTap maternal vaccination given by the Obstetrician-Gynecologist or the Midwife is associated with a 12-fold increase in the dTap coverage. CONCLUSIONS Multiprofessional training is essential to make Obstetricians-Gynecologists and Midwives more confident in recommending dTaP maternal immunization.
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Affiliation(s)
- Francesco Cappozzo
- Obstetric and Gynecology Department, Local Health Unit 7, Bassano del Grappa, Italy
| | | | - Marcello Scollo
- Obstetric and Gynecology Department, Local Health Unit 7, Bassano del Grappa, Italy
| | - Daniele Bernardini
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy
| | | | - Lucia Bonvecchio
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy
| | - Gabriella Tognetto
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy
| | | | - Chiara Negrello
- Family Counseling Center, Local Health Unit 7, Bassano del Grappa, Italy
| | - Paola Lanza
- Obstetric and Gynecology Department, Local Health Unit 7, Bassano del Grappa, Italy
| | - Andrea Cocco
- Obstetric and Gynecology Department, Local Health Unit 7, Bassano del Grappa, Italy
| | - Patrizia Falivene
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy
| | - Liviano Vianello
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy
| | - Antonio Di Caprio
- Health Services Director, Local Health Unit 7, Bassano del Grappa, Italy
| | - Giovanni Gabutti
- Department of Medical Sciences,University of Ferrara, Ferrara, Italy
| | - Mario Saugo
- Department of Prevention, Local Health Unit 7, Bassano del Grappa, Italy.
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5
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McHugh L, O'Grady KAF, Nolan T, Richmond PC, Wood N, Marshall HS, Lambert SB, Chatfield MD, Perrett KP, Binks P, Binks MJ, Andrews RM. National predictors of influenza vaccine uptake in pregnancy: the FluMum prospective cohort study, Australia, 2012-2015. Aust N Z J Public Health 2021; 45:455-461. [PMID: 34411398 DOI: 10.1111/1753-6405.13130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 04/01/2021] [Accepted: 05/01/2021] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Ascertain predictors of inactivated influenza vaccine (IIV) uptake in pregnancy in mother-infant pairs from six Australian sites over four consecutive influenza seasons (2012-2015). METHODS Prospective observational cohort study calculating proportions of unvaccinated and vaccinated pregnancies. Multivariable logistic regression calculating adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) to determine demographic, pregnancy and birth characteristics as predictors of IIV uptake in pregnancy. RESULTS Uptake of IIV was 36% (n=3,651/9,878) with only 3-4% during the first trimester. Validation of IIV receipt was obtained for 77% of vaccinated participants. Predictors of IIV uptake in pregnancy were: healthcare provider recommendation to have IIV during pregnancy (aOR 7.04 [95%CI 5.83-8.50]): GP (aOR 4.12 [95%CI 3.43-4.98]), obstetrician (aOR 4.41 [95%CI 3.45-5.64]), midwife (aOR 1.88 [95%CI 1.51-2.36]); previous IIV within 12 months of their current pregnancy (aOR 2.87 [95%CI 2.36-3.50]); and pertussis vaccination during the current pregnancy (aOR 4.88 [95%CI 4.08-5.83]). Conclusions and implications for public health: Healthcare provider discussions with pregnant women about the risks associated with influenza infection during pregnancy and early infancy and evidence about the safety and effectiveness of IIV are required. Recommending and offering IIV in pregnancy needs to be included in these discussions to improve uptake.
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Affiliation(s)
- Lisa McHugh
- Menzies School of Health Research, Charles Darwin University, Northern Territory.,School of Public Health, The University of Queensland
| | - Kerry-Ann F O'Grady
- Australian Centre for Health Services Innovation, Centre for Healthcare Transformation, Queensland University of Technology
| | - Terry Nolan
- Peter Doherty Institute for Infection and Immunity, The University of Melbourne, and Murdoch Children's Research Institute
| | - Peter C Richmond
- Perth Children's Hospital, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute and Division of Paediatrics, University of Western Australia, New South Wales
| | - Nicholas Wood
- National Centre for Immunisation Research and Surveillance (NCIRS) and The Faculty of Medicine and Health, University of Sydney, New South Wales
| | - Helen S Marshall
- Women's and Children's Health Network and Robinson Research Institute and Adelaide Medical School, The University of Adelaide, South Australia
| | - Stephen B Lambert
- Research School of Population Health, Australian National University, Australian Capital Territory
| | - Mark D Chatfield
- Menzies School of Health Research, Charles Darwin University, Northern Territory.,Faculty of Medicine, The University of Queensland
| | - Kirsten P Perrett
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, The University of Melbourne, Victoria
| | - Paula Binks
- Menzies School of Health Research, Charles Darwin University, Northern Territory
| | - Michael J Binks
- Menzies School of Health Research, Charles Darwin University, Northern Territory
| | - Ross M Andrews
- Menzies School of Health Research, Charles Darwin University, Northern Territory.,Research School of Population Health, Australian National University, Australian Capital Territory
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6
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Giduthuri JG, Purohit V, Kudale A, Utzinger J, Schindler C, Weiss MG. Antenatal influenza vaccination in urban Pune, India: clinician and community stakeholders' awareness, priorities, and practices. Hum Vaccin Immunother 2021; 17:1211-1222. [PMID: 32966146 PMCID: PMC8018408 DOI: 10.1080/21645515.2020.1806670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 08/01/2020] [Indexed: 12/14/2022] Open
Abstract
The World Health Organization (WHO) recommends antenatal influenza vaccination (AIV) for pregnant women at any stage of pregnancy. This study assessed fundamental aspects of AIV acceptance and demand among key stakeholders in urban Pune, India. Semi-structured interviews for rapid ethnographic assessment of AIV-related awareness, priorities, and practices were used to study clinicians and their communities of practice. A qualitative survey was conducted among 16 private clinicians providing antenatal care (ANC) in slum and middle-class areas of Pune. Following the survey, clinicians were informed about authoritative AIV recommendations. A qualitative community survey was also conducted with 60 women aged 20-35 years and 30 spouses from the same slum and middle-class practice areas of the ANC providers. Subsequently, a second clinician survey was conducted to assess changes in clinicians' awareness, priority, and vaccination practice. After this interview, clinicians were informed of community survey findings. Most community respondents were unaware of AIV, in contrast with well-known and widely used antenatal tetanus vaccination. They expressed confidence in vaccines and trust in the clinicians. Clinicians' advice was reportedly the most important determinant of community vaccine acceptance. Clinicians were confident of the safety of AIV and they anticipated patients' acceptance if recommended. The second clinician interview showed increased awareness of AIV policy, but clinicians were more skeptical about the severity of maternal influenza in their practice. Our findings indicate community acceptance though not demand for AIV. We recommend five essential elements for vaccination program strategies to improve coverage with AIV and other ANC vaccines.
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Affiliation(s)
- Joseph G. Giduthuri
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Vidula Purohit
- The Maharashtra Association of Anthropological Sciences, Centre for Health Research and Development, Pune, India
- Interdisciplinary School of Health Sciences, Savitribai Phule Pune University, Pune, India
| | - Abhay Kudale
- The Maharashtra Association of Anthropological Sciences, Centre for Health Research and Development, Pune, India
- Interdisciplinary School of Health Sciences, Savitribai Phule Pune University, Pune, India
| | - Jürg Utzinger
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Christian Schindler
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Mitchell G. Weiss
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
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7
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Okoli GN, Reddy VK, Al-Yousif Y, Neilson CJ, Mahmud SM, Abou-Setta AM. Sociodemographic and health-related determinants of seasonal influenza vaccination in pregnancy: A systematic review and meta-analysis of the evidence since 2000. Acta Obstet Gynecol Scand 2021; 100:997-1009. [PMID: 33420724 DOI: 10.1111/aogs.14079] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/12/2020] [Accepted: 12/31/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Vaccination is considered to be the most practical and effective preventative measure against influenza. It is highly recommended for population subgroups most at risk of developing complications, including pregnant women. However, seasonal influenza vaccine uptake remains suboptimal among pregnant women, even in jurisdictions with universal vaccination. We summarized the evidence on the determinants of seasonal influenza vaccine uptake during pregnancy to better understand factors that influence vaccine uptake among pregnant women. MATERIAL AND METHODS We systematically searched MEDLINE, Embase and CINAHL from January 2000 to February 2020 for publications in English reporting on sociodemographic and/or health-related determinants of seasonal influenza vaccine uptake during pregnancy. Two reviewers independently included studies. One reviewer extracted data and assessed study quality, and another reviewer checked extracted data and study quality assessments for errors. Disagreements were resolved through consensus, or a third reviewer. We meta-analyzed using the inverse variance, random-effects method, and reported the odds ratios (OR) and 95% confidence intervals (CI). RESULTS From 1663 retrieved citations, we included 36 studies. The following factors were associated with increased seasonal influenza vaccine uptake: Older age (20 studies: OR 1.13, 95% CI 1.07-1.20), being nulliparous (13 studies: OR 1.26, 95% CI 1.15-1.38), married (8 studies: OR 1.11, 95% CI 1.07-1.15), employed (4 studies: OR 1.13, 95% CI 1.02-1.24), a non-smoker (8 studies: OR 1.25, 95% CI 1.04-1.51) and having prenatal care (3 studies: OR 3.36, 95% CI 2.25-5.02), a chronic condition (6 studies: OR 1.30, 95% CI 1.17-1.44), been previously vaccinated (9 studies: OR 4.88, 95% CI 3.14-7.57) and living in a rural area (9 studies: OR 1.09, 95% CI 1.05-1.14). Compared with being black, being white was also associated with increased seasonal influenza vaccine uptake (11 studies: OR 1.30, 95% CI 1.20-1.41). CONCLUSIONS The evidence suggests that several sociodemographic and health-related factors may determine seasonal influenza vaccination in pregnancy, and that parity, history of influenza vaccination, prenatal care and comorbidity status may be influential.
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Affiliation(s)
- George N Okoli
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,George & Fay Yee Center for Healthcare Innovation, University of Manitoba, Winnipeg, Manitoba, Canada.,Vaccine and Drug Evaluation Center, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Viraj K Reddy
- George & Fay Yee Center for Healthcare Innovation, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yahya Al-Yousif
- George & Fay Yee Center for Healthcare Innovation, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Christine J Neilson
- Neil John Maclean Health Sciences Library, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Salaheddin M Mahmud
- College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Vaccine and Drug Evaluation Center, University of Manitoba, Winnipeg, Manitoba, Canada.,Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Ahmed M Abou-Setta
- George & Fay Yee Center for Healthcare Innovation, University of Manitoba, Winnipeg, Manitoba, Canada.,Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
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8
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Kilich E, Dada S, Francis MR, Tazare J, Chico RM, Paterson P, Larson HJ. Factors that influence vaccination decision-making among pregnant women: A systematic review and meta-analysis. PLoS One 2020; 15:e0234827. [PMID: 32645112 PMCID: PMC7347125 DOI: 10.1371/journal.pone.0234827] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/02/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The most important factor influencing maternal vaccination uptake is healthcare professional (HCP) recommendation. However, where data are available, one-third of pregnant women remain unvaccinated despite receiving a recommendation. Therefore, it is essential to understand the significance of other factors and distinguish between vaccines administered routinely and during outbreaks. This is the first systematic review and meta-analysis (PROSPERO: CRD 42019118299) to examine the strength of the relationships between identified factors and maternal vaccination uptake. METHODS We searched MEDLINE, Embase Classic & Embase, PsycINFO, CINAHL Plus, Web of Science, IBSS, LILACS, AfricaWideInfo, IMEMR, and Global Health databases for studies reporting factors that influence maternal vaccination. We used random-effects models to calculate pooled odds ratios (OR) of being vaccinated by vaccine type. FINDINGS We screened 17,236 articles and identified 120 studies from 30 countries for inclusion. Of these, 49 studies were eligible for meta-analysis. The odds of receiving a pertussis or influenza vaccination were ten to twelve-times higher among pregnant women who received a recommendation from HCPs. During the 2009 influenza pandemic an HCP recommendation increased the odds of antenatal H1N1 vaccine uptake six times (OR 6.76, 95% CI 3.12-14.64, I2 = 92.00%). Believing there was potential for vaccine-induced harm had a negative influence on seasonal (OR 0.22, 95% CI 0.11-0.44 I2 = 84.00%) and pandemic influenza vaccine uptake (OR 0.16, 95% CI 0.09-0.29, I2 = 89.48%), reducing the odds of being vaccinated five-fold. Combined with our qualitative analysis the relationship between the belief in substantial disease risk and maternal seasonal and pandemic influenza vaccination uptake was limited. CONCLUSIONS The effect of an HCP recommendation during an outbreak, whilst still powerful, may be muted by other factors. This requires further research, particularly when vaccines are novel. Public health campaigns which centre on the protectiveness and safety of a maternal vaccine rather than disease threat alone may prove beneficial.
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Affiliation(s)
- Eliz Kilich
- Department of Infectious Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - Sara Dada
- Department of Infectious Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - Mark R. Francis
- Department of Infectious Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - John Tazare
- Department of Medical Statistics, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - R. Matthew Chico
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - Pauline Paterson
- Department of Infectious Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
| | - Heidi J. Larson
- Department of Infectious Diseases Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Topical Medicine, London, United Kingdom
- Institute of Health Metrics and Evaluation, University of Washington, Seattle, Washington, United States of America
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9
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Kong KL, Chu S, Giles ML. Factors influencing the uptake of influenza vaccine vary among different groups in the hard‐to‐reach population. Aust N Z J Public Health 2020; 44:163-168. [DOI: 10.1111/1753-6405.12964] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/01/2019] [Accepted: 11/01/2019] [Indexed: 11/26/2022] Open
Affiliation(s)
- Khai Lin Kong
- Department of Obstetrics and GynaecologyMonash University Melbourne Victoria
| | - Sandy Chu
- Faculty of Medicine, Nursing and Health SciencesMonash University Melbourne Victoria
| | - Michelle L. Giles
- Department of Obstetrics and GynaecologyMonash University Melbourne Victoria
- Monash Immunisation, Monash Health Melbourne Victoria
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10
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Gauld N, Martin S, Sinclair O, Petousis-Harris H, Dumble F, Grant CC. A Qualitative Study of Views and Experiences of Women and Health Care Professionals about Free Maternal Vaccinations Administered at Community Pharmacies. Vaccines (Basel) 2020; 8:E152. [PMID: 32235360 PMCID: PMC7349902 DOI: 10.3390/vaccines8020152] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/11/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022] Open
Abstract
Background: A policy to extend funding of maternal pregnancy influenza and pertussis vaccinations to community pharmacies could address low pregnancy vaccine uptake. The policy has been implemented in one region in New Zealand. This study explored the views and experiences of women eligible for the vaccines and health care professionals regarding funded maternal vaccinations in pharmacy. Methods: Women in late pregnancy or with an infant, and midwives, pharmacists, and general practice staff were selected purposively and interviewed regarding maternal vaccinations and the new policy, including their awareness and views of the funded vaccinations in pharmacies, and how this policy worked in practice. Enablers and barriers to vaccination by pharmacists were explored. Interviews were transcribed and analysed using a framework approach. Results: Fifty-three interviews were conducted. Most women and health care professionals viewed funded maternal vaccinations in pharmacies positively with respect to increasing awareness and providing delivery options. Many women received messages from pharmacies. Most pharmacies used posters, leaflets and/or verbal explanation to pregnant women to raise awareness of the vaccinations. Not all pharmacies provided these vaccinations, and frontline staff could help to raise awareness. Conclusion: Funded maternal vaccinations in pharmacies are generally well accepted and provide an opportunity to increase uptake and prevent disease.
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Affiliation(s)
- Natalie Gauld
- Department of Paediatrics: Child and Youth Health, University of Auckland, 2 Park Rd, Auckland 1023, New Zealand;
| | | | | | - Helen Petousis-Harris
- Department of General Practice and Primary Health Care, University of Auckland, Auckland 1023, New Zealand;
| | | | - Cameron C. Grant
- Department of Paediatrics: Child and Youth Health, University of Auckland, 2 Park Rd, Auckland 1023, New Zealand;
- General Paediatrics, Starship Children’s Hospital, Auckland 1023, New Zealand
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11
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McHugh L, Binks MJ, Gao Y, Andrews RM, Ware RS, Snelling T, Kildea S. Influenza vaccination in pregnancy among a group of remote dwelling Aboriginal and Torres Strait Islander mothers in the Northern Territory: The 1+1 Healthy Start to Life study. ACTA ACUST UNITED AC 2019; 43. [PMID: 31426733 DOI: 10.33321/cdi.2019.43.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Remote-living Aboriginal and Torres Strait Islander women experience a higher burden of influenza infection during pregnancy than any other Australian women. Despite recommendations of inactivated influenza vaccination (IIV) in pregnancy, uptake and safety data are scarce for this population. We examined uptake of IIV in pregnancy and report adverse birth outcomes amongst a predominantly unvaccinated group of remote-living Aboriginal and Torres Strait Islander women from the Northern Territory (NT), using data from the 1+1 Healthy Start to Life study. Data were deterministically linked with the NT Immunisation Register to ascertain IIV exposure in pregnant women during 2003-2006 and 2009-2011 inclusive. Overall, IIV uptake in pregnancy was 3% (n=20/697 pregnancies); 0% (0/414) pre-influenza A(H1N1)pdm09 and 7% (20/293) post-influenza A(H1N1)pdm09 (2009-2011). Vaccine uptake was poor in this cohort and it is unclear at what stage this policy failure occurred. Women with known comorbidities and/or high risk factors were not targeted for vaccination. Much larger study participant numbers are required to validate between group comparisons but there was no clinically nor statistically significant difference in median gestational ages (38 weeks for both groups), mean infant birthweights (3,001 g unvaccinated vs 3,175 g IIV vaccinated), nor birth outcomes between the few women who received IIV in pregnancy and those who did not. There were no stillbirths in women who received an IIV in pregnancy.
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Affiliation(s)
- Lisa McHugh
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - Michael J Binks
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - Yu Gao
- Mater Midwifery Research Unit - University of Queensland, Women's Health and Newborn Services (Maternity) Mater Health Service; School of Nursing, Midwifery and Social Work, University of Queensland, Brisbane, Queensland, Australia
| | - Ross M Andrews
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia; Applied Epidemiology Program, National Centre for Epidemiology & Population Health, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Robert S Ware
- Menzies Health Institute Queensland, Griffith University, Brisbane, Queensland, Australia
| | - Tom Snelling
- Infectious Disease Implementation Research, Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia; Perth Children's Hospital, Perth, Western Australia, Australia; Curtin University, School of Public Health, Perth, Western Australia, Australia
| | - Sue Kildea
- Mater Research Institute - University of Queensland, Women's Health and Newborn Services (Maternity) Mater Health Service; School of Nursing, Midwifery and Social Work, University of Queensland, Brisbane, Queensland, Australia
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12
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McHugh L, Crooks K, Creighton A, Binks M, Andrews RM. Safety, equity and monitoring: a review of the gaps in maternal vaccination strategies for Aboriginal and Torres Strait Islander women. Hum Vaccin Immunother 2019; 16:371-376. [PMID: 31368832 DOI: 10.1080/21645515.2019.1649552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Influenza and pertussis infections are disproportionately higher among Aboriginal and Torres Strait Islander women and their infants compared to other Australians. These infections are potentially preventable through vaccination in pregnancy; however, there is a lack of systematic monitoring and therefore knowledge of vaccine uptake, safety and effectiveness in Australia, and specifically among Aboriginal and Torres Strait Islander women. The limited data available suggest there is a lower uptake of maternal vaccination among Aboriginal and Torres Strait Islander women compared to non-Aboriginal and Torres Strait Islander women, and this review seeks to explore potential reasons and the knowledge gaps in this regard. Other key gaps include the equitable access to quality antenatal care for Aboriginal and Torres Strait Islander women; and pregnancy loss <20 weeks gestation. Furthermore, our review highlights the importance of addressing these gaps in maternal vaccination strategies in partnership with Aboriginal and Torres Strait Islander peoples.
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Affiliation(s)
- Lisa McHugh
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - Kristy Crooks
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia.,Hunter New England Local Health District, Population Health, Wallsend, New South Wales, Australia
| | - Amy Creighton
- Hunter New England Local Health District, Population Health, Wallsend, New South Wales, Australia
| | - Michael Binks
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - Ross M Andrews
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia.,Department of Population Health, National Centre for Epidemiology, Australian National University, Canberra, Australian Capital Territory, Australia
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13
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Sarna M, Andrews R, Moore H, Binks MJ, McHugh L, Pereira GF, Blyth CC, Van Buynder P, Lust K, Effler P, Lambert SB, Omer SB, Mak DB, Snelling T, D'Antoine HA, McIntyre P, de Klerk N, Foo D, Regan AK. 'Links2HealthierBubs' cohort study: protocol for a record linkage study on the safety, uptake and effectiveness of influenza and pertussis vaccines among pregnant Australian women. BMJ Open 2019; 9:e030277. [PMID: 31227542 PMCID: PMC6596983 DOI: 10.1136/bmjopen-2019-030277] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Pregnant women and infants are at risk of severe influenza and pertussis infection. Inactivated influenza vaccine (IIV) and diphtheria-tetanus-acellular pertussis vaccine (dTpa) are recommended during pregnancy to protect both mothers and infants. In Australia, uptake is not routinely monitored but coverage appears sub-optimal. Evidence on the safety of combined antenatal IIV and dTpa is fragmented or deficient, and there remain knowledge gaps of population-level vaccine effectiveness. We aim to establish a large, population-based, multi-jurisdictional cohort of mother-infant pairs to measure the uptake, safety and effectiveness of antenatal IIV and dTpa vaccines in three Australian jurisdictions. This is a first step toward assessing the impact of antenatal vaccination programmes in Australia, which can then inform government policy with respect to future strategies in national vaccination programmes. METHODS AND ANALYSIS: 'Links2HealthierBubs' is an observational, population-based, retrospective cohort study established through probabilistic record linkage of administrative health data. The cohort includes births between 2012 and 2017 (~607 605 mother-infant pairs) in jurisdictions with population-level antenatal vaccination and health outcome data (Western Australia, Queensland and the Northern Territory). Perinatal data will be the reference frame to identify the cohort. Jurisdictional vaccination registers will identify antenatal vaccination status and the gestational timing of vaccination. Information on maternal, fetal and child health outcomes will be obtained from hospitalisation and emergency department records, notifiable diseases databases, developmental anomalies databases, birth and mortality registers. ETHICS AND DISSEMINATION Ethical approval was obtained from the Western Australian Department of Health, Curtin University, the Menzies School of Health Research, the Royal Brisbane and Women's Hospital, and the West Australian Aboriginal Health Ethics Committees. Research findings will be disseminated in peer-reviewed journals, at scientific meetings, and may be incorporated into communication materials for public health agencies and the public.
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Affiliation(s)
- Mohinder Sarna
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - Ross Andrews
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Hannah Moore
- School of Public Health, Curtin University, Bentley, Western Australia, Australia
- Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Nedlands, Western Australia, Australia
| | - Michael J Binks
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Lisa McHugh
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Gavin F Pereira
- School of Public Health, Curtin University, Perth, Western Australia, Australia
| | - Christopher C Blyth
- Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Nedlands, Western Australia, Australia
- Perth Children's Hospital, Perth, Western Australia, Australia
| | | | - Karin Lust
- Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Paul Effler
- Communicable Disease Control Directorate, Department of Health Government of Western Australia, Perth, Western Australia, Australia
| | - Stephen B Lambert
- Child Health Research Centre, The University of Queensland, Brisbane, Queensland, Australia
| | - Saad B Omer
- Rollins School of Public Health, Emory University, Atlanta, Georgia, United States of America
| | - Donna B Mak
- Communicable Disease Control Directorate, Department of Health Government of Western Australia, Perth, Western Australia, Australia
- Notre Dame University, Perth, Western Australia, Australia
| | - Thomas Snelling
- Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- Wesfarmers Centre of Vaccines & Infectious Diseases, Telethon Kids Institute, Perth, Western Australia, Australia
- School of Public Health, Curtin University, Bentley, Western Australia, Australia
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Heather A D'Antoine
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Peter McIntyre
- National Centre for Immunisation Research and Surveillance, Sydney, New South Wales, Australia
| | - Nicholas de Klerk
- Telethon Kids Institute, West Perth, Western Australia, Australia
- The University of Western Australia, Perth, Western Australia, Australia
| | - Damien Foo
- School of Public Health, Curtin University School of Public Health, Perth, Western Australia, Australia
| | - Annette K Regan
- School of Public Health, Curtin University School of Public Health, Perth, Western Australia, Australia
- School of Public Health, Texas A&M University, College Station, Texas, United States of America
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Western Australia, Australia
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14
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Regan A, Effler PV, Thomson C, Mak DB. Potential use of Western Australia’s mandatory Midwives Notification System for routinely monitoring antenatal vaccine coverage. Commun Dis Intell (2018) 2019. [DOI: 10.33321/cdi.2019.43.21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background
Despite the maternal and infant health benefits of antenatal vaccines and availability of government-funded vaccination programs, Australia does not have a national system for routinely monitoring antenatal vaccination coverage. We evaluated the potential use of Western Australia’s mandatory Midwives Notification System (MNS) as a tool for routinely monitoring antenatal vaccination coverage.
Methods
Two hundred and sixty-eight women who gave birth to a live infant between August and October 2016 participated in a telephone survey of vaccines received in their most recent pregnancy. For women who reported receiving influenza and/or pertussis vaccine and whose vaccination status was documented by their vaccine provider, MNS vaccination data were compared with the vaccine provider’s record as the ‘gold standard.’ For women who reported receiving no vaccines, MNS vaccination data were compared with self-reported information.
Results
Influenza and pertussis vaccination status was complete (i.e. documented as either vaccinated or not vaccinated) for 66% and 63% of women, respectively. Sensitivity of MNS influenza vaccination data was 65.7% (95% CI 56.0-74.2%) and specificity was 53.0% (95% CI 42.4-63.4%). Sensitivity of MNS pertussis vaccination data was 62.5% (95% CI 53.3-70.9%) and specificity was 40.4% (95% CI 27.6-54.7%). There was no difference between vaccinated and unvaccinated women in the proportion of MNS records with missing or unknown vaccination information. When considering only MNS records with complete vaccination information, the sensitivity of the MNS influenza vaccination field was 91.8% (95% CI 83.0-96.9%) and the sensitivity of the MNS pertussis vaccination field was 88.0% (95% CI 76.7-95.5%).
Conclusion
Due to the high proportion of records with missing or unknown vaccination status, we observed low sensitivity and specificity of antenatal vaccination data in the MNS. However, given we did not observe differential ascertainment by vaccination status, MNS records with complete information may be reliable data source for routinely monitoring antenatal vaccine coverage.
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Affiliation(s)
- Annette Regan
- 1-School of Public Health, Curtin University 2-Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute 3-School of Public Health, Texas A&M University
| | - Paul V Effler
- 1-Communicable Disease Control Directorate, Department of Health Western Australia 2- School of Pathology and Laboratory Medicine, University of Western Australia
| | - Chloe Thomson
- 1-Communicable Disease Control Directorate, Department of Health Western Australia 2-School of Population and Global Health, University of Western Australia
| | - Donna B Mak
- 1-Communicable Disease Control Directorate, Department of Health Western Australia 2- School of Medicine, University of Notre Dame
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15
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Rowe SL, Perrett KP, Morey R, Stephens N, Cowie BC, Nolan TM, Leder K, Pitcher H, Sutton B, Cheng AC. Influenza and pertussis vaccination of women during pregnancy in Victoria, 2015-2017. Med J Aust 2019; 210:454-462. [PMID: 31006130 DOI: 10.5694/mja2.50125] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 01/24/2019] [Indexed: 01/19/2023]
Abstract
OBJECTIVES To assess variations by time of year and hospital in the uptake of influenza and pertussis vaccinations by pregnant women in Victoria; to identify factors associated with vaccination uptake. DESIGN, SETTING Retrospective analysis of data in the Victorian Perinatal Data Collection (VPDC), a population surveillance system for obstetric conditions, procedures, and pregnancy and birth outcomes. PARTICIPANTS Women whose pregnancies ended in a live or stillbirth during July 2015 - June 2017. MAIN OUTCOME MEASURES Influenza and pertussis vaccinations during pregnancy. RESULTS 153 980 pregnancies in 67 hospitals ended during July 2015 - June 2017; 59 968 pregnant women (39.0%) were vaccinated against influenza and 98 583 (64.0%) against pertussis. Coverage varied by pregnancy end date, rising for influenza during winter and spring, but for pertussis rising continuously across the two years from 37.5% to 82.2%. Differences between hospitals in coverage were marked. Factors associated with vaccination included greater maternal age, primigravidity, early antenatal care, and GP-led care. The odds of vaccination were statistically significantly lower for women born overseas and those who smoked during pregnancy; the odds of vaccination were also lower for Aboriginal and Torres Strait Islander women. CONCLUSIONS Pertussis vaccination of pregnant women in Victoria has increased, but influenza vaccination rates remain moderate and variable. Structural changes at the system level may improve maternal vaccination rates. Embedding the delivery of maternal vaccination programs in antenatal care pathways should be a priority.
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Affiliation(s)
- Stacey L Rowe
- Monash University, Melbourne, VIC.,Department of Health and Human Services (Victoria), Melbourne, VIC
| | | | - Rosemary Morey
- Department of Health and Human Services (Victoria), Melbourne, VIC
| | | | - Benjamin C Cowie
- WHO Collaborating Centre for Viral Hepatitis, the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC.,Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, VIC
| | - Terry M Nolan
- Murdoch Children's Research Institute, Melbourne, VIC.,University of Melbourne, Melbourne, VIC
| | - Karin Leder
- Monash University, Melbourne, VIC.,Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, VIC
| | - Helen Pitcher
- Department of Health and Human Services (Victoria), Melbourne, VIC
| | - Brett Sutton
- Department of Health and Human Services (Victoria), Melbourne, VIC
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16
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Giduthuri JG, Purohit V, Maire N, Kudale A, Utzinger J, Schindler C, Weiss MG. Influenza vaccination of pregnant women: Engaging clinicians to reduce missed opportunities for vaccination. Vaccine 2019; 37:1910-1917. [PMID: 30827735 DOI: 10.1016/j.vaccine.2019.02.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Antenatal influenza vaccination (AIV) is an effective intervention for protecting pregnant women and their newborns against influenza. Although the World Health Organization recommends AIV at any stage of pregnancy, in low- and middle-income countries, including India, it is rarely provided. Research suggests that antenatal care (ANC) provider practices explain much of this limited coverage. Our study in urban Pune, India, assessed the feasibility of a two-stage clinician-engagement strategy to reduce missed opportunities for AIV in urban private-practice ANC clinics. METHODS Clinicians were randomized to intervention and control groups in slum and middle-class study sites. Intervention-group clinicians (active clinicians) were assessed on vaccination-related views and practices, and were presented with authoritative AIV recommendations from global, academic and professional medical organizations. In a second meeting after a community survey, findings concerning vaccination-related views and experiences were explained to active clinicians. Assessments of community vaccination views were not provided to control-group clinicians. Both groups maintained logs of ANC clinic visit vaccination status throughout the 11-month study period to enable identification of missed and taken opportunities for vaccination. Analyses were restricted to visits of women in their third trimester without previous AIV in the current pregnancy. RESULTS Overall, 30 clinicians participated. After first and second interactions, active clinicians in middle-class communities vaccinated at 12.2% and 37.8%, respectively. Middle-class control clinicians vaccinated at <0.2% throughout the study. This difference in AIV taken opportunities between middle-class active and control clinics was statistically significant (p < 0.05) after first and second interactions. In slum-community sites, active clinicians' AIV activity was minimal throughout. CONCLUSIONS Our approach for engaging clinicians effectively reduced missed opportunities for AIV in urban middle-class settings of Pune. It may also improve maternal vaccination for other conditions. The absence of any similar effect in slum-based clinics likely reflects critical limitations of vaccine access.
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Affiliation(s)
- Joseph G Giduthuri
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland.
| | - Vidula Purohit
- The Maharashtra Association of Anthropological Sciences, Centre for Health Research and Development, Pune, India; Savitribai Phule Pune University, Pune, India
| | - Nicolas Maire
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Abhay Kudale
- The Maharashtra Association of Anthropological Sciences, Centre for Health Research and Development, Pune, India; Savitribai Phule Pune University, Pune, India
| | - Jürg Utzinger
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Christian Schindler
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Mitchell G Weiss
- Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
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17
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McHugh L, Andrews R, Leckning B, Snelling T, Binks M. Baseline incidence of adverse birth outcomes and infant influenza and pertussis hospitalisations prior to the introduction of influenza and pertussis vaccination in pregnancy: a data linkage study of 78 382 mother-infant pairs, Northern Territory, Australia, 1994-2015. Epidemiol Infect 2019; 147:e233. [PMID: 31364572 PMCID: PMC6627012 DOI: 10.1017/s0950268819001171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 05/16/2019] [Accepted: 05/31/2019] [Indexed: 11/18/2022] Open
Abstract
We conducted probabilistic data linkage of three population datasets for the Northern Territory (NT), Australia, to describe the incidence of preterm births, stillbirths, low birthweight and small for gestational age (SGA) per 1000 NT births; and influenza and pertussis hospitalisations per 1 00 000 NT births in infants <7 months of age, in a pre-maternal vaccination era. The Perinatal Trends dataset (1994-2014) formed the cohort of 78 382 births. Aboriginal mother-infant pairs (37%) had disproportionately higher average annual rates (AR) for all adverse birth outcomes compared to their non-Aboriginal counterparts; rate ratios: preterm births 2.2 (AR 142.4 vs. 64.7); stillbirths 2.3 (AR 10.8 vs. 4.6); low birthweight 2.9 (AR 54 vs. 19); and SGA 1.7 (AR 187 vs. 111). Hospitalisation (2000-2015) and Immunisation Register datasets (1994-2015), showed that influenza hospitalisations (n = 53) and rates were 42.3 times higher in Aboriginal infants (AR 254 vs. 6); and that pertussis hospitalisations (n = 37) were 7.1 times higher in Aboriginal infants (AR 142.5 vs. 20.2) compared to non-Aboriginal infants. These baseline data are essential to assess the safety and effectiveness of influenza and pertussis vaccinations in pregnant women from the NT. Remote living Aboriginal women and infants stand to benefit the most from these vaccines.
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Affiliation(s)
- L. McHugh
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - R.M. Andrews
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
- National Centre for Epidemiology & Population Health, Australian National University, Canberra, Australian Capital Territory, Australia
| | - B. Leckning
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
| | - T. Snelling
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
- Curtin University, School of Public Health, Perth, Western Australia
- University of Western Australia Perth, Western Australia
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Western Australia, Australia
- Perth Children's Hospital, Perth, Western Australia
| | - M.J. Binks
- Menzies School of Health Research, Charles Darwin University, Tiwi, Northern Territory, Australia
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18
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Mak DB, Regan AK, Vo DT, Effler PV. Antenatal influenza and pertussis vaccination in Western Australia: a cross-sectional survey of vaccine uptake and influencing factors. BMC Pregnancy Childbirth 2018; 18:416. [PMID: 30355329 PMCID: PMC6201540 DOI: 10.1186/s12884-018-2051-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/10/2018] [Indexed: 03/04/2023] Open
Abstract
Background Influenza and pertussis vaccines have been recommended in Australia for women during each pregnancy since 2010 and 2015, respectively. Estimating vaccination coverage and identifying factors affecting uptake are important for improving antenatal immunisation services. Methods A random sample of 800 Western Australian women ≥18 years of age who gave birth between 4th April and 4th October 2015 were selected. Of the 454 (57%) who were contactable by telephone, 424 (93%) completed a survey. Data were weighted by maternal age and area of residence to ensure representativeness. The proportion immunised against influenza and pertussis was the main outcome measure; multivariate logistic regression was used to identify factors significantly associated with antenatal vaccination. Results from the 2015 study were compared to similar surveys conducted in 2012–2014. Results In 2015, 71% (95% CI 66–75) of women received pertussis-containing vaccine and 61% (95% CI 56–66) received influenza vaccine during pregnancy; antenatal influenza vaccine coverage was 18% higher than in 2014 (43%; 95% CI: 34–46). Pertussis and influenza vaccine were co-administered for 68% of the women who received both vaccines. The majority of influenza vaccinations in 2015 were administered during the third trimester of pregnancy, instead of the second trimester, as was observed in prior years. Women whose care provider recommended both antenatal vaccinations had significantly higher odds of being vaccinated against both influenza and pertussis (OR 33.3, 95% CI: 15.15–73.38). Of unvaccinated mothers, 53.6% (95% CI: 45.9–61.3) and 78.3% (95% CI: 70.4–85.3) reported that they would have been vaccinated against influenza and pertussis, respectively, if their antenatal care provider had recommended it. Conclusions Pertussis vaccination coverage was high in the first year of an antenatal immunisation program in Western Australia. Despite a substantial increase in influenza vaccination uptake between 2014 and 2015, coverage remained below that for pertussis. Our data suggest influenza and pertussis vaccination rates of 83% and 94%, respectively, are achievable if providers were to recommend them to all pregnant women.
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Affiliation(s)
- Donna B Mak
- Communicable Disease Control Directorate, Department of Health, Shenton Park, Western Australia. .,School of Medicine, University of Notre Dame, Fremantle, Western Australia.
| | - Annette K Regan
- Communicable Disease Control Directorate, Department of Health, Shenton Park, Western Australia.,School of Public Health, Curtin University, Bentley, Western Australia
| | - Dieu T Vo
- Communicable Disease Control Directorate, Department of Health, Shenton Park, Western Australia.,School of Population Health, University of Western Australia, Crawley, Western Australia
| | - Paul V Effler
- Communicable Disease Control Directorate, Department of Health, Shenton Park, Western Australia.,School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Western Australia
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19
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Janagaraj PD, Gurusamy PSR, Webby R. Current antenatal pertussis vaccination guidelines miss preterm infants: An epidemiological study from the Northern Territory. Aust N Z J Obstet Gynaecol 2018; 59:436-443. [PMID: 30255494 DOI: 10.1111/ajo.12896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 08/12/2018] [Indexed: 12/01/2022]
Abstract
IMPORTANCE Assessing gaps in antenatal pertussis vaccination to increase coverage. INTRODUCTION Antenatal pertussis vaccination has been proven effective in reducing pertussis disease in infants. Current guidelines recommend maternal pertussis vaccination from 28 weeks gestation. The aim of this study is to determine antenatal pertussis vaccination coverage in the Northern Territory and potential socio-demographic factors affecting uptake, using validated birth and immunisation data. METHODS Cross-sectional population study including all viable births (from 24 weeks gestation) in Northern Territory public hospitals in 2016. RESULTS There were 3392 viable delivery episodes in 2016 with 48.9% coverage against maternal pertussis based on current guidelines. Mothers <35 years old were more likely to receive antenatal vaccination (adjusted odds ratio (aOR) = 1.26, CI 1.035-1.52, P = 0.021). Pertussis vaccination coverage for preterm births was low at 0% for extreme, 18.86% for very preterm and 39.8% for moderate preterm births, with an overall coverage of 33.5% for all preterm births. Term births were two times more likely than preterm births to have had mothers receive an antenatal diphtheria toxoid, tetanus toxoid and acellular pertussis vaccine (aOR = 1.957, CI 1.53-2.50, P < 0.001). CONCLUSIONS A significant proportion (66.5%) of preterm babies are not benefiting from protection against pertussis with the current pertussis vaccination policy from 28 weeks gestation. As timing of birth cannot be predetermined, a review of safety and acceptability of pertussis vaccine administration in the second trimester is needed. Implementation of pertussis vaccination from 20 weeks gestation will provide a wider vaccination period and maximise the protection of all infants including pre-term infants from pertussis.
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Affiliation(s)
| | | | - Rosalind Webby
- Centre for Disease Control (CDC), Tiwi, Northern Territory, Australia
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