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Covid-19 vaccination coverage and associated factors among older hypertensive patients in Hangzhou, China
Shijun Liu1, Caixia Jiang1, Yan Liu1
1Department of Non-communicable and Chronic Diseases, Hangzhou Center for Disease Control and prevention, Mingshi Road No. 568, Hangzhou, Zhejiang 310021, China.
Insights
COVID-19 vaccine coverage is high but needs improvement in Chinese older hypertensive patients. Factors like comorbidities and unhealthy lifestyles reduce vaccination rates, highlighting the need for targeted public health efforts.
Area of Science:
- Public Health
- Epidemiology
- Gerontology
Background:
- Coronavirus disease 2019 (COVID-19) vaccination offers crucial protection.
- Older adults with hypertension are a vulnerable population for COVID-19.
- Understanding vaccination coverage and its determinants in this group is vital.
Purpose of the Study:
- To determine COVID-19 vaccination coverage among Chinese older hypertensive patients.
- To identify factors influencing vaccination status in this demographic.
- To inform strategies for enhancing vaccine uptake.
Main Methods:
- Cross-sectional study design utilizing electronic health records from Hangzhou, China.
- Random sampling of 77,970 individuals during the pandemic era.
- Logistic regression analysis to identify predictors of vaccination coverage.
Main Results:
- 75.11% achieved full COVID-19 vaccination; 57.66% received a booster dose.
- Significant disparities in coverage noted by gender, region, and age.
- Unhealthy lifestyles, comorbidities (cardiovascular disease, cancer), uncontrolled hypertension, diabetes, dyslipidemia, and renal dysfunction were associated with lower coverage.
Conclusions:
- COVID-19 vaccination programs require enhancement for older hypertensive patients.
- Targeted interventions are necessary for urban residents, those with comorbidities, and individuals with multiple risk factors.
- Addressing barriers to vaccination in this population is crucial for public health.
Background:
Vaccination could provide effective protection against coronavirus disease 2019 (COVID-19). This study aims to describe the COVID-19 vaccination coverage and influential factors in Chinese older hypertensive patients.
Methods:
Using a cross-sectional design, participants were randomly selected from the electronic health records system during the pandemic era in Hangzhou, China. Logistic regression models were employed to compute the OR and 95% CI in order to assess the relationships between variables and the extent of COVID-19 vaccination coverage.
Results:
As of 3 August 2022, among a sample of 77 970 individuals, 75.11% had completed the full COVID-19 vaccination, while 57.66% had received a booster dose. Disparities in coverage were observed across genders, regions and age groups. Unhealthy lifestyles, cardiovascular disease, cancer, uncontrolled blood pressure, abnormal fasting plasma glucose, dyslipidemia and renal dysfunction were risk factors for COVID-19 vaccination coverage. The coverage rates continuously declined along with the number of risk factors. The ORs for full and booster vaccination in subjects with ≥4 risk factors were 2.55 (2.12∼3.07) and 2.60 (2.16∼3.13), compared to individuals without risk factors.
Conclusion:
The COVID-19 vaccination program for older hypertensive patients must be strengthened further. Emphasis should be placed on patients who reside in urban areas, have comorbidities or multiple risk factors.
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