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Background: The role of vaccine hesitancy on influenza vaccination is not clearly understood. Low influenza vaccination coverage in U.S. adults suggests that a multitude of factors may be responsible for under-vaccination or non-vaccination including vaccine hesitancy. Understanding the role of influenza vaccination hesitancy is important for targeted messaging and intervention to increase influenza vaccine confidence and uptake. The objective of this study was to quantify the prevalence of adult influenza vaccination hesitancy (IVH) and examine association of IVH beliefs with sociodemographic factors and early-season influenza vaccination., Methods: A four-question validated IVH module was included in the 2018 National Internet Flu Survey. Weighted proportions and multivariable logistic regression models were used to identify correlates of IVH beliefs., Results: Overall, 36.9% of adults were hesitant to receive an influenza vaccination; 18.6% expressed concerns about vaccination side effects; 14.8% personally knew someone with serious side effects; and 35.6% reported that their healthcare provider was not the most trusted source of information about influenza vaccinations. Influenza vaccination ranged from 15.3 to 45.2 percentage points lower among adults self-reporting any of the four IVH beliefs. Being female, age 18-49 years, non-Hispanic Black, having high school or lower education, being employed, and not having primary care medical home were associated with hesitancy., Conclusions: Among the four IVH beliefs studied, being hesitant to receiving influenza vaccination followed by mistrust of healthcare providers were identified as the most influential hesitancy beliefs. Two in five adults in the United States were hesitant to receive an influenza vaccination, and hesitancy was negatively associated with vaccination. This information may assist with targeted interventions, personalized to the individual, to reduce hesitancy and thus improve influenza vaccination acceptance., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)

In order to gain understanding of how percutaneous transluminal coronary angioplasty (PTCA) is taught and practiced in the United States, two questionnaires were devised to survey all adult cardiology training programs and all adult cardiac catheterization laboratories in this country. Of the 184 programs that responded to the training questionnaire, 102 (55%) teach PTCA, usually in the form of fellowship training and especially as a specialized year, and less commonly in the form of a preceptorship. Though many programs expose trainees to an adequate number of cases as defined by the program directors, at least 37% do not. Of 388 laboratories responding to the practice questionnaire, 74% perform PTCA. The total number of PTCA's in this country seems to be doubling yearly, but many laboratories do relatively few cases per year, and 79% of physicians doing PTCA do fewer than one case per week. Average laboratory success rate for PTCA is in the range of 80-85%. Though there is now a proliferation of PTCA training programs, 93% of those practicing angioplasty are self- or preceptor-trained, and have not learned the procedure as part of a fellowship.