Pertussis and influenza immunisation coverage of pregnant women in New Zealand |
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| Institution: | 1. Department of General Practice and Primary Health Care, School of Population Health, University of Auckland, New Zealand;2. Department of Paediatrics: Child and Youth Health, University of Auckland, New Zealand;3. School of Pharmacy, University of Auckland, New Zealand;4. Kōhatu – Centre for Hauora Māori, Division of Health Sciences, University of Otago, New Zealand;5. Immunisation Advisory Centre, University of Auckland, New Zealand;1. Center for Clinical Epidemiology and Population Health, Marshfield Clinic Research Institute, 1000 N Oak Ave, ML2, Marshfield, WI 54449, United States;2. Institute for Health Research, Kaiser Permanente Colorado, 10065 E Harvard Ave #300, Denver, CO 80231, United States;3. Vaccine Study Center, Division of Research, Kaiser Permanente Northern California, 2000 Broadway, Oakland, CA 94612, United States;4. Center for Health Research, Kaiser Permanente Northwest, 3800 N Interstate Ave, Portland, OR 97227, United States;5. Immunization Safety Office, Centers for Disease Control and Prevention, 1600 Clifton Road NE, MS V18-4, Atlanta, GA 30333, United States;1. The University of Otago, Wellington, PO Box 7343, Wellington South 6242, New Zealand;2. The Australian National University, Canberra 0200, ACT Australia;3. Victorian Infectious Diseases Reference Laboratory, Melbourne, VIC, Australia;4. Institute of Environmental Science and Research, Upper Hutt Wellington, New Zealand;5. The University of Auckland, Private Bag 92019, Victoria St West, Auckland, New Zealand;6. Centers for Disease Control and Prevention, Atlanta, GA 30333, USA;1. The University of Auckland, Private Bag 92019, Victoria St West, Auckland, New Zealand;2. The University of Otago, PO Box 7343 Wellington South 6242, Wellington, New Zealand;3. Institute of Environmental Science and Research, PO Box 40-158 Upper Hutt 5140, Wellington, New Zealand;4. Centers for Disease Control and Prevention, Atlanta, GA 30333, USA;5. The Australian National University, Canberra 0200, ACT, Australia;6. Victorian Infectious Diseases Reference Laboratory, 10 Wrecklyn St., North Melbourne, 3051 Melbourne, VIC, Australia;1. Vaccinology and Immunology Research Trials Unit, Women''s and Children''s Hospital, Adelaide, South Australia, Australia;2. Robinson Research Institute, University of Adelaide, Adelaide, South Australia, Australia;3. Northern Campus Women''s and Children''s Division, Lyell McEwin Hospital, The University of Adelaide, Elizabeth Vale, South Australia, Australia;1. Health Protection Surveillance Centre, Dublin, Ireland;2. European Programme for Intervention Epidemiology Training, Stockholm, Sweden;1. Centre for the Evaluation of Vaccination, VAXINFECTIO, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium;2. Environment and Health, KU Leuven, Kapucijnenvoer 35 blok d, 3000 Leuven, Belgium;3. Centre for Health Economics Research and Modelling Infectious Diseases, VAXINFECTIO, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium;4. Leuven University Vaccinology Center, KU Leuven, Campus Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium |
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| Abstract: | BackgroundImmunisation is an important public health policy and measuring coverage is imperative to identify gaps and monitor trends. New Zealand (NZ), like many countries, does not routinely publish coverage of immunisations given during pregnancy. Therefore, this study examined pregnancy immunisation coverage of all pregnant NZ women between 2013 and 2018, and what factors affected uptake.MethodsA retrospective cohort study of pregnant women who delivered between 2013 and 2018 was undertaken using administrative datasets. Maternity and immunisation data were linked to determine coverage of pertussis and influenza vaccinations in pregnancy. Generalised estimating equations were used to estimate the odds of receiving a vaccination during pregnancy.ResultsFrom 2013 to 2018 data were available for 323,622 pregnant women, of whom 21.7% received maternal influenza immunisations and 25.7% maternal pertussis immunisations. Coverage for both vaccines increased over time, pertussis increased from 10.2% to 43.6% and influenza from 11.2% to 30.8%. The odds of being vaccinated, with either vaccine, during pregnancy increased with increasing age and decreasing deprivation. Compared to NZ European or Other women, Māori and Pacific women had lower odds of receiving a maternal pertussis (OR:0.55, 95% CI: 0.54, 0.57; OR:0.60, 95% CI: 0.58, 0.62, respectively) and influenza (OR: 0.69, 95% CI: 0.67, 0.71; OR:0.90, 95% CI: 0.87, 0.94, respectively) immunisations during pregnancy. Women were also more likely to be vaccinated against pertussis if they received antenatal care from a General Practitioner or Obstetrician compared to a Midwife. A similar pattern was seen for influenza vaccination.ConclusionGaps in maternal coverage for pertussis and influenza exist and work is needed to reduce immunisation inequities. |
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| Keywords: | Maternal immunisation coverage Immunisation Pregnancy Pertussis vaccine Influenza Vaccine New Zealand NZ"} {"#name":"keyword" "$":{"id":"k0045"} "$$":[{"#name":"text" "_":"New Zealand CDC"} {"#name":"keyword" "$":{"id":"k0055"} "$$":[{"#name":"text" "_":"Centers for Disease Control and Prevention US"} {"#name":"keyword" "$":{"id":"k0065"} "$$":[{"#name":"text" "_":"United States UK"} {"#name":"keyword" "$":{"id":"k0075"} "$$":[{"#name":"text" "_":"United Kingdom MAT"} {"#name":"keyword" "$":{"id":"k0085"} "$$":[{"#name":"text" "_":"Maternity Collection NHI"} {"#name":"keyword" "$":{"id":"k0095"} "$$":[{"#name":"text" "_":"National Health Index NIR"} {"#name":"keyword" "$":{"id":"k0105"} "$$":[{"#name":"text" "_":"National Immunisation Register DHB"} {"#name":"keyword" "$":{"id":"k0115"} "$$":[{"#name":"text" "_":"District Health Board |
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