PUBH 3231 – Epidemiology and Biostatistics

This course introduces the student to the principles and practice of epidemiology and biostatistics. Students will be exposed to the historical development of epidemiology, concepts of causality, definitions of health and disease, and sources of community health data. Current principles and practices in the cause, prevention and control of diseases in various community settings will be emphasized

Lyme Disease and YouTube™: A Cross-Sectional Study of Video Contents

Objectives: Lyme disease is the most common tick-borne disease. People seek health information on Lyme disease from YouTubeTM videos. In this study, we investigated if the contents of Lyme disease-related YouTubeTM videos varied by their sources. Methods: Most viewed English YouTubeTM videos (n = 100) were identified and manually coded for contents and sources. Results: Within the sample, 40 videos were consumer-generated, 31 were internet-based news, 16 were professional, and 13 were TV news. Compared with consumer-generated videos, TV news videos were more likely to mention celebrities (odds ratio [OR], 10.57; 95% confidence interval [CI], 2.13–52.58), prevention of Lyme disease through wearing protective clothing (OR, 5.63; 95% CI, 1.23–25.76), and spraying insecticides (OR, 7.71; 95% CI, 1.52–39.05). Conclusion: A majority of the most popular Lyme disease-related YouTubeTM videos were not created by public health professionals. Responsible reporting and creative video-making facilitate Lyme disease education. Partnership with YouTubeTM celebrities to co-develop educational videos may be a future direction

Factors Influencing Shared Decision Making Regarding Prostate Specific Antigen Screening among Providers and African American Men: Evidence from the 2010-2018 National Health Interview Surveys (NHIS)

Prostate cancer is the second leading cause of death in men. All men, especially African American men, face challenging decisions related to prostate cancer screening. Shared decision making and effective communication should be incorporated by physicians and other health care professionals as proposed by national health organizations. The purpose of this study was to examine the factors associated with patient-physician discussions regarding advantages, disadvantages, and scientific uncertainty for prostate-specific antigen screening. The 2010-2018 National Health Interview Surveys (NHIS) were analyzed. Univariate, bivariate, and multivariate logistic regression models were used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs). This study found that African American men who are older, have a higher level of education, a higher income status, married, have a family history of prostate cancer, and comorbid conditions were more likely to have doctors recommend PSA screening. Results also revealed that doctors were more likely to discuss the advantages, disadvantages, and the scientific uncertainty of PSA screening among African American men. Future research on multiple influences that affect PSA testing decisions should be considered top priorities for resource allocation in research, practice, and public health policy. INDEX WORDS: Prostate specific antigen, National health interview survey, Prostate cance

Lyme Disease and Youtube: A Cross-Sectional Study of Video Contents

Objectives: Lyme disease is the most common tick-borne disease. People seek health information on Lyme disease from YouTubeTM videos. In this study, we investigated if the contents of Lyme disease-related YouTubeTM videos varied by their sources. Methods: Most viewed English YouTubeTM videos (n = 100) were identified and manually coded for contents and sources. Results: Within the sample, 40 videos were consumer-generated, 31 were internet-based news, 16 were professional, and 13 were TV news. Compared with consumer-generated videos, TV news videos were more likely to mention celebrities (odds ratio [OR], 10.57; 95% confidence interval [CI], 2.13–52.58), prevention of Lyme disease through wearing protective clothing (OR, 5.63; 95% CI, 1.23–25.76), and spraying insecticides (OR, 7.71; 95% CI, 1.52–39.05). Conclusion: A majority of the most popular Lyme disease-related YouTubeTM videos were not created by public health professionals. Responsible reporting and creative video-making facilitate Lyme disease education. Partnership with YouTubeTM celebrities to co-develop educational videos may be a future direction

Characteristics of the Moveable Middle: Opportunities Among Adults Open to COVID-19 Vaccination

IntroductionFocusing on subpopulations that express the intention to receive a COVID-19 vaccination but are unvaccinated may improve the yield of COVID-19 vaccination efforts.MethodsA nationally representative sample of 789,658 U.S. adults aged ≥18 years participated in the National Immunization Survey Adult COVID Module from May 2021 to April 2022. The survey assessed respondents' COVID-19 vaccination status and intent by demographic characteristics (age, urbanicity, educational attainment, region, insurance, income, and race/ethnicity). This study compared composition and within-group estimates of those who responded that they definitely or probably will get vaccinated or are unsure (moveable middle) from the first and last month of data collection.ResultsBecause vaccination uptake increased over the study period, the moveable middle declined among persons aged ≥18 years. Adults aged 18-39 years and suburban residents comprised most of the moveable middle in April 2022. Groups with the largest moveable middles in April 2022 included persons with no insurance (10%), those aged 18-29 years (8%), and those with incomes below poverty (8%), followed by non-Hispanic Native Hawaiian or other Pacific Islander (7%), non-Hispanic multiple or other race (6%), non-Hispanic American Indian or Alaska Native persons (6%), non-Hispanic Black or African American persons (6%), those with below high school education (6%), those with high school education (5%), and those aged 30-39 years (5%).ConclusionsA sizable percentage of adults open to receiving COVID-19 vaccination remain in several demographic groups. Emphasizing engagement of persons who are unvaccinated in some racial/ethnic groups, aged 18-39 years, without health insurance, or with lower income may reach more persons open to vaccination