Predictors of COVID-19 vaccine uptake: an online three-wave survey study of US adults.

BACKGROUND: To effectively promote vaccine uptake, it is important to understand which people are most and least inclined to be vaccinated and why. In this study, we examined predictors of COVID-19 vaccine uptake and reasons for non-vaccination. METHODS: We conducted an online English-language survey study in December-2020, January-2021, and March-2021. A total of 930 US respondents completed all surveys. Multiple logistic regression models were run to test whether the early vaccine eligibility, demographic factors, and psychological factors predict getting at least one dose of a COVID-19 vaccination in January-2021 and in March-2021. RESULTS: The proportion of respondents who received ≥ 1-dose of a COVID-19 vaccine increased from 18% (January) to 67% (March). Older age predicted vaccine uptake in January (OR = 2.02[95%CI = 1.14-3.78], p < .001) and March (10.92[6.76-18.05], p < .001). In January, additional predictors were higher numeracy (1.48[1.20-1.86], p < .001), COVID-19 risk perceptions (1.35[1.03-1.78], p = .029), and believing it is important adults get the COVID-19 vaccine (1.66[1.05-2.66], p = .033). In March, additional predictors of uptake were believing it is important adults get the COVID-19 vaccine (1.63[1.15-2.34], p = .006), prior COVID-19 vaccine intentions (1.37[1.10-1.72], p = .006), and belief in science (0.84[0.72-0.99], p = .041). Concerns about side effects and the development process were the most common reasons for non-vaccination. Unvaccinated respondents with no interest in getting a COVID-19 vaccine were younger (0.27[0.09-0.77], p = .016), held negative views about COVID-19 vaccines for adults (0.15[0.08-0.26], p < .001), had lower trust in healthcare (0.59[0.36-0.95], p = .032), and preferred to watch and wait in clinically ambiguous medical situations (0.66[0.48-0.89], p = .007). CONCLUSIONS: Evidence that attitudes and intentions towards COVID-19 vaccines were important predictors of uptake provides validation for studies using these measures and reinforces the need to develop strategies for addressing safety and development concerns which remain at the forefront of vaccine hesitancy.

Population Health at the Academic Health Center: An Interactive, Multipart, Case-Based Session for Executives, Faculty, and Administrators.

INTRODUCTION: Academic health centers (AHCs) play critical roles in population health by providing health care, conducting population health research, and providing population health training and education. This publication describes an interactive, multipart, case-based session targeted at AHC executives, faculty, and administrators about population health initiatives at AHCs and how the AHC structure can be leveraged to promote population health. METHODS: This 90-minute virtual session was conducted during the Association of Academic Health Centers' 2020 annual meeting. The session opened with 5-minute, Ignite-style presentations showcasing population health innovations. Next, in small groups, participants discussed a case introducing a fictional AHC charged with assisting its local government's population health efforts. Participants self-selected into one of four small groups (analytics, education and training, community engagement, and implementation) and were provided additional case content and tailored prompts. In the large group, participants debriefed their discussions. Participants completed a postsession survey. RESULTS: Forty-six individuals from 31 AHCs participated. Eighteen participants completed the survey. Sixteen respondents (89%) agreed the session was valuable and provided ideas for implementation at their AHC. Fifteen participants (83%) indicated that they planned to follow up with their colleagues regarding how to leverage the AHC structure to improve population health. DISCUSSION: This session provides an interactive forum to discuss population health in the context of an AHC and examine how its structure can facilitate population health. While offered at a conference, the session can also be implemented at a single AHC to foster local understanding of population health and inform future initiatives.

Factors Associated With Decision Regret Among Patients With Diverticulitis in the Elective Setting.

BACKGROUND: We aimed to identify decision process measures associated with patient decisional regret regarding the decision to pursue elective colectomy or observation for diverticulitis. MATERIALS AND METHODS: This was a single-center cross-sectional survey study. We included adult patients treated for diverticulitis between 2014 and 2019 and excluded patients who required urgent or emergent colectomy. The primary outcome was regret regarding the decision to pursue elective surgery or observation for diverticulitis, measured using the Decision Regret Scale. We used multivariable linear regression to examine hypothesized predictors of decision regret, including decisional conflict (Decision Conflict Scale and its subscales), shared decision-making, and decision role concordance. RESULTS: Of 923 eligible patients, 133 were included in the analysis. Patients had a median of five episodes of diverticulitis (interquartile range 3-8), occurring a median of 2 y (interquartile range 1-3) before survey administration. Thirty-eight patients (29%) underwent elective surgery for diverticulitis. Decision regret (Decision Regret Scale score ≥25) was present in 42 patients (32%). After controlling for surgery, gender, health status, and years since treatment, decision regret was associated with decisional conflict and inversely associated with values clarity, decision role concordance, shared decision-making, and feeling informed, supported, and effective in decision-making (all P < 0.001). CONCLUSIONS: Nearly one-third of survey respondents experienced regret regarding the decision between elective surgery and observation for diverticulitis. Decision regret may be reduced through efforts to improve patient knowledge, values clarity, role concordance, and shared decision-making.

Patient Willingness to Accept Antibiotic Side Effects to Reduce Surgical Site Infection After Colorectal Surgery.

BACKGROUND: Mechanical bowel preparation with antibiotics is associated with decreased surgical site infections (SSI) after colorectal surgery. However, antibiotics have side effects, such as vomiting. It is unknown how patient willingness to take antibiotics is affected by side effect severity. MATERIALS AND METHODS: This was a single-center study of 86 patients (37 undergoing colorectal surgery) using a modified standard gamble technique. We presented patients with four hypothetical scenarios, holding SSI reduction constant and varying antibiotic side effect severity. Patients reported willingness to take antibiotics using a scale from 0 to 100. Patients also reported the maximum level of side effects they would accept. We examined the association between side effect severity and willingness to take antibiotics with a multivariable mixed-effects regression model and investigated differences in surgical and nonsurgical patients. RESULTS: After adjusting for age, sex, and patient type, willingness scores decreased with increasing side effect severity. No side effects: 92 (CI 86,99), mild: 83 (CI 76,90), moderate: 76 (CI 69,83), and severe: 46 (CI 38,52), P < 0.001. Surgical patients were more willing to take antibiotics at all severity levels compared with nonsurgical patients, P < 0.001. Surgical (57%) and nonsurgical (58%) patients reported that they would accept moderate side effects. Patients with prior SSI (n = 5) would take antibiotics regardless of side effect severity. CONCLUSIONS: Increasing antibiotic side effect severity is associated with decreased willingness to take antibiotics during bowel preparation, despite a reduction in SSI. Adherence may be improved with strategies that increase patient education and decrease side effects during bowel preparation.

Large-scale death of retinal astrocytes during normal development is non-apoptotic and implemented by microglia.

Naturally occurring cell death is a fundamental developmental mechanism for regulating cell numbers and sculpting developing organs. This is particularly true in the nervous system, where large numbers of neurons and oligodendrocytes are eliminated via apoptosis during normal development. Given the profound impact of death upon these two major cell populations, it is surprising that developmental death of another major cell type-the astrocyte-has rarely been studied. It is presently unclear whether astrocytes are subject to significant developmental death, and if so, how it occurs. Here, we address these questions using mouse retinal astrocytes as our model system. We show that the total number of retinal astrocytes declines by over 3-fold during a death period spanning postnatal days 5-14. Surprisingly, these astrocytes do not die by apoptosis, the canonical mechanism underlying the vast majority of developmental cell death. Instead, we find that microglia engulf astrocytes during the death period to promote their developmental removal. Genetic ablation of microglia inhibits astrocyte death, leading to a larger astrocyte population size at the end of the death period. However, astrocyte death is not completely blocked in the absence of microglia, apparently due to the ability of astrocytes to engulf each other. Nevertheless, mice lacking microglia showed significant anatomical changes to the retinal astrocyte network, with functional consequences for the astrocyte-associated vasculature leading to retinal hemorrhage. These results establish a novel modality for naturally occurring cell death and demonstrate its importance for the formation and integrity of the retinal gliovascular network.