Trends in Influenza Vaccine Coverage in Pregnant Women, 2008 to 2012

Abstract Uptake of influenza vaccine among pregnant women remains low. We investigated whether unvaccinated pregnant women were clustered geographically and determined factors associated with failure to vaccinate using spatial and multivariate logistic regression analyses. Pregnant women who were members of Kaiser Permanente Northern California in 2015 or 2016 were included in the study. More than half (53%) of the 77,607 included pregnant women were unvaccinated. Spatial analysis identified 5 clusters with a high prevalence of unvaccinated pregnant women. The proportion of unvaccinated women ranged from 57% to 75% within clusters as compared with 51% outside clusters. In covariate-adjusted analyses, residence in a cluster was associated with a 41% increase in the odds of being unvaccinated (odds ratio (OR) = 1.41, 95% confidence interval (CI): 1.36, 1.46). The odds of being unvaccinated were greater for Black women (OR = 1.58, 95% CI: 1.49, 1.69), Hispanic women (OR = 1.15, 95% CI: 1.05, 1.25), women with subsidized health insurance (OR = 1.18, 95% CI: 1.11, 1.24), women with fewer than 5 prenatal-care visits (OR = 1.85, 95% CI: 1.60, 2.16), and neighborhoods with a high deprivation index (fourth quartile vs. first: OR = 1.14, 95% CI: 1.07, 1.21). In conclusion, unvaccinated pregnant women were clustered geographically and by key sociodemographic factors. These findings suggest that interventions to increase influenza vaccine coverage among pregnant women are needed, particularly in vulnerable populations.

Download Full-text

Insurance status predicts self-reported influenza vaccine coverage among pregnant women in the United States: A cross-sectional analysis of the National Health Interview Study Data from 2012 to 2018

Vaccine ◽

10.1016/j.vaccine.2021.03.026 ◽

2021 ◽

Author(s):

Mary Catherine Cambou ◽

Timothy P. Copeland ◽

Karin Nielsen-Saines ◽

James Macinko

Keyword(s):

United States ◽

Influenza Vaccine ◽

Pregnant Women ◽

National Health ◽

Vaccine Coverage ◽

The United States ◽

Study Data ◽

Insurance Status ◽

Cross Sectional ◽

Sectional Analysis

Download Full-text

Influenza Vaccine Coverage Rate and Related Factors on Pregnant Women

Infection and Chemotherapy ◽

10.3947/ic.2009.41.6.349 ◽

2009 ◽

Vol 41 (6) ◽

pp. 349 ◽

Cited By ~ 12

Author(s):

Mi-Jung Kim ◽

Seung-Youn Lee ◽

Kwang-Soo Lee ◽

Aerum Kim ◽

Dongwook Son ◽

...

Keyword(s):

Influenza Vaccine ◽

Pregnant Women ◽

Vaccine Coverage ◽

Coverage Rate ◽

Related Factors

Download Full-text

An evaluation of an influenza vaccination campaign targeting pregnant women in 27 clinics in two provinces of South Africa, 2015 – 2018

BMC Health Services Research ◽

10.1186/s12913-021-06962-8 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Kate Bishop ◽

Meredith McMorrow ◽

Susan Meiring ◽

Sibongile Walaza ◽

Liza Rossi ◽

...

Keyword(s):

South Africa ◽

Influenza Vaccine ◽

Influenza Vaccination ◽

Pregnant Women ◽

Vaccine Coverage ◽

Vaccination Campaign ◽

Hiv Positive ◽

Western Cape ◽

Department Of Health ◽

Routine Antenatal Care

Abstract Introduction Despite prioritization, routine antenatal influenza vaccine coverage is < 16% in South Africa. We aimed to describe maternal influenza vaccine coverage in 27 antenatal clinics (ANCs) in Gauteng and Western Cape (WC) Provinces, where in collaboration with the Department of Health (DoH), we augmented the annual influenza vaccination programme among pregnant women. Methods From 2015 through 2018, 40,230 additional doses of influenza vaccine were added to the available stock and administered as part of routine antenatal care. Educational talks were given daily and data were collected on women attending ANCs. We compared characteristics of vaccinated and unvaccinated women using multivariable logistic regression. Results We screened 62,979 pregnant women during the period when Southern Hemisphere influenza vaccines were available (27,068 in Gauteng and 35,911 in WC). Vaccine coverage at the targeted clinics was 78.7% (49,355/62682), although pregnant women in WC were more likely to be vaccinated compared to those in the Gauteng (Odds ratio (OR) =3.7 p < 0.001). Women aged 25—29 and > 35 years were less likely to be vaccinated than women aged 18—24 years (OR = 0.9 p = 0.053; OR = 0.9 p < 0.001). HIV positive status was not associated with vaccination (OR = 1.0 p = 0.266). Reasons for not vaccinating included: vaccine stock-outs where ANCs depleted available stock of vaccines and/or were awaiting delivery of vaccines (54.6%, 6949/12723), refusal/indecision (25.8%, 3285), and current illness that contraindicated vaccination (19.6%, 2489). Conclusion Antenatal vaccination uptake was likely improved by the increased vaccine supply and vaccine education offered during our campaign.

Download Full-text

Influenza Vaccine Coverage among Pregnant Women in a Public Hospital System during the 2009-2010 Pandemic Influenza Season

Influenza Research and Treatment ◽

10.1155/2012/329506 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6

Author(s):

Dean V. Coonrod ◽

Blanca-Flor Jimenez ◽

Amber N. Sturgeon ◽

David Drachman

Keyword(s):

Influenza Vaccine ◽

Health System ◽

Pregnant Women ◽

Pandemic Influenza ◽

Influenza Season ◽

Vaccine Coverage ◽

Safety Net ◽

H1n1 Vaccine ◽

Vaccination Rates ◽

Coverage Rates

The purpose of this study was to compare influenza vaccination rates of pregnant women in a public safety-net health system to national coverage rates during the 2009-2010 pandemic influenza season. A chart review of a random sample of deliveries was undertaken to determine rates of coverage and predictors of vaccine coverage of women who obtained prenatal care and delivered in our health system. Rates were calculated from deliveries from when the vaccine was first available through April 30, 2010. Coverage rates were 54% for the seasonal influenza vaccine and 51% for the H1N1 vaccine. Race/ethnicity, insurance status and language spoken did not predict the receipt of either vaccine. When we included only births which occurred through March 12, 2010, as was done in a large population-based study, the rates were 61% and 59%, respectively. Our rates are about 10% higher than the rates reported in that study. Our comprehensive strategy for promoting vaccine coverage achieved higher vaccination rates in a safety-net health system, which serves groups historically less likely to be vaccinated, than those reported for the pregnant population at large.

Download Full-text

Influenza vaccination coverage in a population-based cohort of Australian-born Aboriginal and non-Indigenous older adults

Communicable Diseases Intelligence ◽

10.33321/cdi.2019.43.30 ◽

2019 ◽

Vol 43 ◽

Author(s):

Amalie Dyda ◽

Surendra Karki ◽

Marlene Kong ◽

Heather F Gidding ◽

John M Kaldor ◽

...

Keyword(s):

Influenza Vaccine ◽

Influenza Vaccination ◽

Vaccination Coverage ◽

Torres Strait Islander ◽

Vaccine Coverage ◽

Vaccine Uptake ◽

P Value ◽

Healthy Weight ◽

Medical Risk ◽

Torres Strait

Background: There is limited information on vaccination coverage and characteristics associated with vaccine uptake in Aboriginal and/or Torres Strait Islander adults. We aimed to provide more current estimates of influenza vaccination coverage in Aboriginal adults. Methods: Self-reported vaccination status (n=559 Aboriginal and/or Torres Strait Islander participants, n=80,655 non-Indigenous participants) from the 45 and Up Study, a large cohort of adults aged 45 years or older, was used to compare influenza vaccination coverage in Aboriginal and/or Torres Strait Islander adults with coverage in non-Indigenous adults. Results: Of Aboriginal and non-Indigenous respondents aged 49 to <65 years, age-standardised influenza coverage was respectively 45.2% (95% CI 39.5–50.9%) and 38.5%, (37.9–39.0%), p-value for heterogeneity=0.02. Coverage for Aboriginal and non-Indigenous respondents aged ≥65 years was respectively 67.3% (59.9–74.7%) and 72.6% (72.2–73.0%), p-heterogeneity=0.16. Among Aboriginal adults, coverage was higher in obese than in healthy weight participants (adjusted odds ratio (aOR)=2.38, 95%CI 1.44–3.94); in those aged <65 years with a medical risk factor than in those without medical risk factors (aOR=2.13, 1.37–3.30); and in those who rated their health as fair/poor compared to those who rated it excellent (aOR=2.57, 1.26–5.20). Similar associations were found among non-Indigenous adults. Conclusions: In this sample of adults ≥65 years, self-reported influenza vaccine coverage was not significantly different between Aboriginal and non-Indigenous adults whereas in those <65 years, coverage was higher among Aboriginal adults. Overall, coverage in the whole cohort was suboptimal. If these findings are replicated in other samples and in the Australian Immunisation Register, it suggests that measures to improve uptake, such as communication about the importance of influenza vaccine and more effective reminder systems, are needed among adults.

Download Full-text

31. Influenza Vaccination During Pregnancy: A Descriptive Cross-sectional Survey of the Knowledge, Beliefs, and Attitudes of Mexican Gynecologists and Family Physicians

Open Forum Infectious Diseases ◽

10.1093/ofid/ofaa439.076 ◽

2020 ◽

Vol 7 (Supplement_1) ◽

pp. S39-S39

Author(s):

Erika Z Lopatynsky-Reyes ◽

Sue Ann Costa-Clemens ◽

Enrique Chacon-Cruz ◽

Michael Greenberg

Keyword(s):

Influenza Vaccination ◽

Pregnant Women ◽

Latin American ◽

Vaccine Coverage ◽

Family Physicians ◽

Morbidity And Mortality ◽

Cross Sectional Survey ◽

Cross Sectional ◽

Beliefs And Attitudes ◽

In Pregnancy

Abstract Background Influenza in pregnancy is associated with elevated morbidity and mortality. Influenza vaccines are both safe and effective in pregnancy, supporting routine use in this population. Even though influenza vaccination in Mexico is recommended for pregnant women, there are no publications of influenza vaccine coverage in pregnancy. This is the first Latin American survey done only in physicians aiming to assess the knowledge, beliefs, and attitudes that Mexican Obstetrics-Gynecologists (OBG) and Family Physicians (FP) have towards influenza and influenza immunization during pregnancy. Methods A cross-sectional survey was conducted, both paper-based and online. The questionnaire was composed of 35 questions, which addressed general knowledge of influenza, recommendations for vaccination during pregnancy, and beliefs and attitudes concerning the acceptability of the vaccine in pregnant women. Results A total of 206 completed surveys were available, 98 (47.6%) from OBG, 108 (52.4%) from FP. Regarding current practicing medical institutions, 76 (37%), 69 (34%), 31 (14.5%), 30 (14.5%) reported working for the Mexican Institute of Social Security, Private Sector, Secretariat of Health, or a combination of all respectively, representing an estimated 2,472 daily pregnancy consultations. About a quarter (26.2%) reported not having a notion that influenza is more severe among pregnant women. More than half (51.5%) ignored the potential side effects of influenza infection on the fetus. The majority (56.8%) did not know when vaccination during pregnancy should occur. Pregnancy as a risk factor for developing influenza complications was known only in 48.1%. Also, 46.1 % believed that vaccination only confers protection to the mother, but not to the fetus. Nevertheless, 96.1% considered that immunization against influenza during pregnancy is a safe and effective preventive intervention. A results’ summary is shown in Figure-1. Conclusion Based on this survey, current knowledge of OBG and FP for influenza morbidity and mortality during pregnancy, and the importance of influenza vaccination in pregnant women, is poor. Mandatory recommendations to educate medical providers regarding influenza vaccination during pregnancy in Mexico are necessary, even as imperative for CME credits. Disclosures All Authors: No reported disclosures

Download Full-text