11/30/2023 0 Comments California lockdown update bay area![]() ![]() Under the assumption that these trends would have been parallel among respondents in the Bay Area and elsewhere had the announcement not occurred, the resulting DID estimates correspond to the change in each outcome attributable to the announcement itself in the Bay Area. The DID approach assumes that any changes that occurred outside of the Bay Area reflect background or secular trends. The estimator compared the change in responses after versus before Maamong respondents in the Bay Area versus elsewhere in the U.S. Because the majority of survey responses were collected by March 19, 2020, the DID analysis was focused on examining the impact of the Bay Area SIPO announcement on March 16, 2020. We used a difference-in-differences (DID) approach with linear probability models to estimate the impact of the SIPO announcement. levels of social distancing), but also by characterizing how difficulty related to daily activities such as obtaining food, essential medications and childcare and levels of concern regarding the COVID-19 crisis changed in the wake of the announcement. The present study adds to the growing literature on the complex and varied impacts of SIPOs by characterizing not only the degree of behavior change (i.e. Relatively fewer studies have applied quasi-experimental techniques to examine the impact of SIPOs, and those that do often focus on cases, hospitalizations, mortality, or transmission. Many of these quasi-experimental studies have focused on changes in human mobility using aggregated smartphone-based measures such as time spent at home. A large body of COVID-19 literature has employed quasi-experimental methods to examine the impact of the pandemic on a variety of topics including superspreader events, air pollution, unemployment, and demand for online shopping. More specifically, we use a difference-in-differences estimator to estimate changes among respondents living in the seven counties in the San Francisco Bay Area affected by the announcement versus those living elsewhere in the U.S. ![]() and disjointed efforts by local and state governments, school districts, and universities to enact, rollback, and re-enact SIPOs, it is critical that we understand the impact of these orders on the public’s behaviors and perceptions.įor the present study, we employed convenience sampling to rapidly ascertain and summarize the impact of the announcement of the nation’s first SIPO on March 16, 2020. Given the unprecedented nature of SIPOs in the U.S. Subsequent SARS-CoV-2 wintertime outbreaks may necessitate repeated intermittent social distancing orders into 2021. In the following weeks, 42 states and the District of Columbia passed such orders. state to enact a statewide shelter-in-place order (SIPO), following an announcement on Maof a SIPO for seven San Francisco Bay Area counties effective on 12:01 AM on Ma. On March 19, 2020, California was the first U.S. However, the extent and level of enforcement of these measures vary widely. NPIs were shown to be effective during the 2003 severe acute respiratory syndrome coronavirus (SARS-CoV) outbreak, and quickly became the cornerstone of mitigation and intervention strategies for COVID-19 globally. In the absence of vaccines or treatments, the primary defense has been to reduce the risk of SARS-CoV-2 exposure through non-pharmaceutical interventions (NPIs) such as school closures, social distancing, isolation and quarantine, and use of personal masks. Nearly one-fourth of these confirmed cases occurred in the United States (U.S.), with over 290,000 recorded deaths to date. By December of 2020, there were over six million confirmed cases globally. ![]() The coronavirus disease 2019 (COVID-19) pandemic began when clusters of “pneumonia of unknown etiology” were identified in December 2019. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |