Coverage and Timing of Influenza Vaccination Among Privately Insured Pregnant Women in the United States, 2010-2018

2021 ◽  
pp. 003335492110267
Author(s):  
Kai Hong ◽  
Megan C. Lindley ◽  
Fangjun Zhou
Keyword(s):  
Influenza Vaccination ◽  
Pregnant Women ◽  
Vaccination Coverage ◽  
Influenza Season ◽  
The United States ◽  
Metropolitan Statistical Area ◽  
Provider Education ◽  
Vaccination Uptake ◽  
Increased Risk ◽  
Privately Insured

Objective Pregnant women are at increased risk of serious complications from influenza and are recommended to receive an influenza vaccination during pregnancy. The objective of this study was to assess trends, timing patterns, and associated factors of influenza vaccination among pregnant women. Methods We used 2010-2018 MarketScan data on 1 286 749 pregnant women aged 15-49 who were privately insured to examine trends and timing patterns of influenza vaccination coverage. We examined descriptive statistics and identified factors associated with vaccination uptake by using multivariate log-binomial and Cox proportional hazard models. Results In-plan influenza vaccination coverage before delivery increased from 22.0% during the 2010-2011 influenza season to 33.2% during the 2017-2018 influenza season. About two-thirds of vaccinated women received the vaccine in September or October during each influenza season. For women who delivered in September through May, influenza vaccination coverage increased rapidly at the beginning of influenza season and flattened after October. For women who delivered in June through August, influenza vaccination coverage increased gradually until February and flattened thereafter. Most vaccinated women who delivered before January received the vaccine in the third trimester. Increased likelihood of being vaccinated was associated with age 31-40, living in a metropolitan statistical area, living outside the South, enrollment in a consumer-driven or high-deductible health plan, being spouses or dependents of policy holders, and delivery in November through January. Conclusions Despite increases during the past several years, vaccination uptake is still suboptimal, particularly after October. Health care provider education on timing of vaccination and recommendations throughout influenza seasons are needed to improve influenza vaccination coverage among pregnant women.

scholarly journals Influenza Vaccination Coverage Among Pregnant Women — United States, 2014–15 Influenza Season

2015 ◽  
Vol 64 (36) ◽  
pp. 1000-1005 ◽  
Author(s):  
Helen Ding ◽  
Carla L. Black ◽  
Sarah Ball ◽  
Sara Donahue ◽  
Rebecca V. Fink ◽  
...  
Keyword(s):  
United States ◽  
Influenza Vaccination ◽  
Pregnant Women ◽  
Vaccination Coverage ◽  
Influenza Season

scholarly journals Monitoring of Influenza Vaccination Coverage among Pregnant Women in Germany Based on Nationwide Outpatient Claims Data: Findings for Seasons 2014/15 to 2019/20

Vaccines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 485
Author(s):  
Annika Steffen ◽  
Thorsten Rieck ◽  
Anette Siedler
Keyword(s):  
Health Care ◽  
Influenza Vaccination ◽  
Pregnant Women ◽  
Vaccination Coverage ◽  
Claims Data ◽  
East Germany ◽  
West Germany ◽  
Prenatal Health ◽  
Severe Influenza ◽  
Increased Risk

Pregnant women and their infants are at increased risk for severe influenza-related complications. A decade has passed since influenza vaccination was first recommended for pregnant women in Germany in 2010; however, monitoring of vaccination coverage (VC) has not yet been implemented for this target group. Using nationwide outpatient claims data, we here provide results on influenza VC among pregnant women in Germany for seasons 2014/15 to 2019/20. For any given season, pregnant women were defined as women who had undergone prenatal health care in at least two consecutive quarters within a season. VC increased from 9.0% in season 2014/15 to 16.6% in 2019/20 (+84%), while most of the increase occurred from season 2016/17 (VC: 9.9%) onwards (+68%). Consistently across seasons, women in east Germany were 40 to 60% more likely to be vaccinated compared to women residing in west Germany. According to age, the highest VC was observed among women aged 35 to <40 years (2019/20: 18.2%). Despite noticeable increases in influenza VC during recent years, overall coverage remains low among pregnant women. Starting with this analysis, VC among pregnant women in Germany will be monitored on a yearly basis in order to detect trends and identify immunization gaps.

scholarly journals Influenza Vaccination Coverage Among Pregnant Women — United States, 2016–17 Influenza Season

2017 ◽  
Vol 66 (38) ◽  
pp. 1016-1022 ◽  
Author(s):  
Helen Ding ◽  
Carla L. Black ◽  
Sarah Ball ◽  
Rebecca V. Fink ◽  
Walter W. Williams ◽  
...  
Keyword(s):  
United States ◽  
Influenza Vaccination ◽  
Pregnant Women ◽  
Vaccination Coverage ◽  
Influenza Season

scholarly journals Monitoring seasonal influenza vaccination coverage among pregnant women in the United States

2012 ◽  
Vol 207 (3) ◽  
pp. S9-S16 ◽  
Author(s):  
Erin D. Kennedy ◽  
Indu B. Ahluwalia ◽  
Helen Ding ◽  
Peng-Jun Lu ◽  
James A. Singleton ◽  
...  
Keyword(s):  
United States ◽  
Influenza Vaccination ◽  
Pregnant Women ◽  
Vaccination Coverage ◽  
Seasonal Influenza ◽  
The United States ◽  
Seasonal Influenza Vaccination

scholarly journals Trends in Childhood Influenza Vaccination Coverage, United States, 2012-2019

2020 ◽  
Vol 135 (5) ◽  
pp. 640-649
Author(s):  
Tammy A. Santibanez ◽  
Anup Srivastav ◽  
Yusheng Zhai ◽  
James A. Singleton
Keyword(s):  
United States ◽  
Influenza Vaccination ◽  
Vaccination Coverage ◽  
Age Groups ◽  
The United States ◽  
Health Conditions ◽  
Kaplan Meier ◽  
National Immunization ◽  
Previous Season ◽  
Increased Risk

Objective The objective was to compare estimates of childhood influenza vaccination across 7 consecutive influenza seasons based on 2 survey systems. Methods We analyzed data from the National Health Interview Survey (NHIS) and the National Immunization Survey–Flu (NIS-Flu) using Kaplan-Meier survival analysis to estimate receipt, based on parental report, of at least 1 dose of influenza vaccine among children aged 6 months to 17 years. Results We found no significant increasing trend in influenza vaccination coverage among children overall from 2012 to 2018 based on the NHIS or from 2012 to 2019 based on the NIS-Flu. We found 4 seasons with a significant increase in influenza vaccination coverage compared with the previous season (2012-2013 [NHIS, NIS-Flu], 2013-2014 [NIS-Flu], 2017-2018 [NHIS], and 2018-2019 [NIS-Flu]). As of the 2018-2019 season, based on NIS-Flu, influenza vaccination coverage was only 62.6%. Children with health conditions that put them at increased risk for complications from influenza had higher influenza vaccination coverage than children without these health conditions for all the seasons studied except 2014-2015. For all seasons studied, influenza vaccination coverage estimates for children were higher based on NIS-Flu data compared with NHIS data. Trends across seasons and differences in vaccination coverage between age groups were similar between the 2 surveys. Conclusions Influenza vaccination coverage among children appears to have plateaued. Only about half of the children in the United States were vaccinated against influenza. Improvements in measurement of influenza vaccination and development and review of strategies to increase childhood influenza vaccination coverage are needed.

scholarly journals 22. Description of Hospitalized Patients with Influenza Vaccine Failure

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S35-S35
Author(s):  
Joanna Kimball ◽  
Yuwei Zhu ◽  
Dayna Wyatt ◽  
Helen Talbot
Keyword(s):  
Logistic Regression ◽  
Influenza Vaccine ◽  
Influenza Vaccination ◽  
Older Patients ◽  
Influenza A ◽  
Influenza Season ◽  
Hospitalized Patients ◽  
Vaccine Failure ◽  
Increased Risk ◽  
Immunosuppressed Patients

Abstract Background Despite influenza vaccination, some patients develop illness and require hospitalization. Many factors contribute to vaccine failure, including mismatch of the vaccine and circulating strains, waning immunity, timing of influenza season, age and patient comorbidities such as immune function. This study compared vaccinated, hospitalized patients with and without influenza. Methods This study used 2015–2019 Tennessee data from the US Hospitalized Adult Influenza Vaccine Effectiveness Network database. Enrolled patients were ≥ 18 years vaccinated for the current influenza season and admitted with an acute respiratory illness. Patient or surrogate interviews and medical chart abstractions were performed, and influenza vaccinations were confirmed by vaccine providers. Influenza PCR testing was performed in a research lab. Statistical analyses were performed with STATA and R using Pearson’s chi-squared, Kruskal-Wallis and Wilcoxon rank-sum tests and multivariate logistic regression. Results 1236 patients met study criteria, and 235 (19%) tested positive for influenza. Demographics, vaccines and comorbidities were similar between the two groups (Table 1) except for morbid obesity, which was more common in influenza negative patients (13% vs 8%, p = 0.04), and immunosuppression, which was more common in the influenza positive (63% vs 54%, p = 0.01). Logistic regression analysis demonstrated older patients (OR 1.47, 95% CI 1.03–2.10) and immunosuppressed patients (OR 1.56, 1.15–2.12) were at increased risk for influenza (Table 2 and Figure 1). Immunosuppression also increased the risk for influenza A/H3N2 (OR 1.86, 95% CI 1.25–2.75). A sensitivity analysis was performed on patients who self-reported influenza vaccination for the current season without vaccine verification and demonstrated increased risk of influenza in older adults (OR 1.66, 95% CI 1.16–2.39). Table 1: Demographics of influenza positive versus influenza negative patients in influenza vaccinated, hospitalized patients. Table 2: Logistic regression analyses of vaccinated, hospitalized influenza positive patients; vaccinated, hospitalized patients with influenza A subtypes and self-reported vaccinated, hospitalized influenza positive patients. Figure 1: Predicted Probability of Hospitalization with Influenza, Influenza A/H1N1 and Influenza A/H3N2 in Vaccinated Patients by Age. Conclusion Our study demonstrated an increased risk of influenza vaccine failure in older patients and immunosuppressed patients. These groups are also at increased risk for influenza complications. To improve protection of these patients against future influenza illnesses, more effective vaccines are needed, and more research on ring vaccination should be pursued. Disclosures All Authors: No reported disclosures

scholarly journals Influenza Vaccination Coverage Among Health Care Personnel — United States, 2017–18 Influenza Season

2018 ◽  
Vol 67 (38) ◽  
pp. 1050-1054 ◽  
Author(s):  
Carla L. Black ◽  
Xin Yue ◽  
Sarah W. Ball ◽  
Rebecca V. Fink ◽  
Marie A. de Perio ◽  
...  
Keyword(s):  
United States ◽  
Health Care ◽  
Influenza Vaccination ◽  
Vaccination Coverage ◽  
Influenza Season ◽  
Health Care Personnel

scholarly journals Projected resurgence of COVID-19 in the United States in July-December 2021 resulting from the increased transmissibility of the Delta variant and faltering vaccination

2021 ◽  
Author(s):  
Shaun Truelove ◽  
Claire P. Smith ◽  
Michelle Qin ◽  
Luke C. Mullany ◽  
Rebecca K. Borchering ◽  
...  
Keyword(s):  
United States ◽  
Vaccination Coverage ◽  
Vaccine Coverage ◽  
Public Health Practice ◽  
The United States ◽  
Social Contacts ◽  
Vaccination Uptake ◽  
The Us ◽  
Novel Variant ◽  
Report Data

What is already known about this topic? The highly transmissible SARS-CoV-2 Delta variant has begun to cause increases in cases, hospitalizations, and deaths in parts of the United States. With slowed vaccination uptake, this novel variant is expected to increase the risk of pandemic resurgence in the US in July-December 2021. What is added by this report? Data from nine mechanistic models project substantial resurgences of COVID-19 across the US resulting from the more transmissible Delta variant. These resurgences, which have now been observed in most states, were projected to occur across most of the US, coinciding with school and business reopening. Reaching higher vaccine coverage in July-December 2021 reduces the size and duration of the projected resurgence substantially. The expected impact of the outbreak is largely concentrated in a subset of states with lower vaccination coverage. What are the implications for public health practice? Renewed efforts to increase vaccination uptake are critical to limiting transmission and disease, particularly in states with lower current vaccination coverage. Reaching higher vaccination goals in the coming months can potentially avert 1.5 million cases and 21,000 deaths and improve the ability to safely resume social contacts, and educational and business activities. Continued or renewed non-pharmaceutical interventions, including masking, can also help limit transmission, particularly as schools and businesses reopen.

Seasonal Influenza Vaccination Patterns Among Pregnant Women in New Mexico

2019 ◽  
Vol 18 (4) ◽  
pp. 214-223
Author(s):  
Upasana Chalise ◽  
Jill A. McDonald ◽  
Anup Amatya ◽  
Martha Morales
Keyword(s):  
Health Care ◽  
New Mexico ◽  
Influenza Vaccination ◽  
Pregnant Women ◽  
Seasonal Influenza ◽  
Vaccine Coverage ◽  
The United States ◽  
Vaccination Rate ◽  
Seasonal Influenza Vaccination ◽  
Border States

Introduction: Seasonal influenza vaccination is recommended for pregnant women, but half of the pregnant women in the United States remain unvaccinated. Vaccine coverage in U.S.–Mexico border states has not been examined in depth even though risk factors for low vaccine coverage exist in these states, especially in the counties bordering Mexico. Method: Using 2012-2014 New Mexico (NM) Pregnancy Risk Assessment and Monitoring System data, this study examined the weighted annual seasonal influenza vaccination rates and the relationship of various factors to vaccination among NM residents with a live birth during those years. Results: Among respondents, 53.8% were Hispanic, 15.7% were Native American, and 30.5% were non-Hispanic White. The vaccination rate in NM increased from 49.0% in 2012 to 64.8% in 2014. The adjusted odds of vaccination were higher among women whose health care provider recommended/offered vaccination during the year prior to delivery compared to women whose provider did not (AOR = 11.92, 95% confidence interval [CI: 9.86, 14.42]) and among those living in the U.S.–Mexico nonborder counties compared to those living in the border counties (AOR = 1.23, 95% CI [1.18, 1.25]). Conclusion: Efforts to increase the vaccination rate among pregnant women in border states should concentrate on health care providers and the highest risk women, such as those resident in the border region.

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