Publications by authors named "M Santillana"

Importance: Efforts to understand the complex association between social media use and mental health have focused on depression, with little investigation of other forms of negative affect, such as irritability and anxiety.

Objective: To characterize the association between self-reported use of individual social media platforms and irritability among US adults.

Design, Setting, And Participants: This survey study analyzed data from 2 waves of the COVID States Project, a nonprobability web-based survey conducted between November 2, 2023, and January 8, 2024, and applied multiple linear regression models to estimate associations with irritability.

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Measures to curb the spread of SARS-CoV-2 impacted not only COVID-19 dynamics, but also other infectious diseases, such as dengue in Brazil. The COVID-19 pandemic disrupted not only transmission dynamics due to changes in mobility patterns, but also several aspects of surveillance, such as care seeking behavior and clinical capacity. However, we lack a clear understanding of the overall impact on dengue in different parts of Brazil and the contribution of individual causal drivers.

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Article Synopsis
  • Identifying new infections during a pandemic is essential for effective public health responses, but it poses significant challenges.
  • This study aimed to evaluate how nonprobability online surveys could track COVID-19 infections over time, even when traditional testing was not available.
  • Conducted across the U.S. from June 2020 to January 2023, the surveys gathered data from over 300,000 participants and revealed a strong correlation between survey results and officially reported COVID-19 cases.
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Background: While the NIMH Research Domain Criteria framework stresses understanding how neuropsychiatric phenotypes vary across populations, little is known outside of small clinical cohorts about conspiratorial thoughts as an aspect of cognition.

Methods: We conducted a 50-state non-probability internet survey conducted in 6 waves between October 6, 2022 and January 29, 2024, with respondents age 18 and older. Respondents completed the American Conspiratorial Thinking Scale (ACTS) and the 9-item Patient Health Questionnaire (PHQ-9).

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Article Synopsis
  • This study investigated how common irritability is among U.S. adults and its relationship with major depressive and anxiety symptoms through an online survey involving over 42,000 participants.
  • Results showed that women, younger individuals, those with lower education levels, and lower household incomes reported higher irritability scores.
  • The findings also revealed a concerning link between increased irritability and suicidal thoughts, highlighting the need for further exploration of irritability's effects on mental health outside of immediate mood disorders.
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