Dataset Information

College Campuses and COVID-19 Mitigation: Clinical and Economic Value.

ABSTRACT:

Background

Colleges in the United States are determining how to operate safely amid the coronavirus disease 2019 (COVID-19) pandemic.

Objective

To examine the clinical outcomes, cost, and cost-effectiveness of COVID-19 mitigation strategies on college campuses.

Design

The Clinical and Economic Analysis of COVID-19 interventions (CEACOV) model, a dynamic microsimulation model, was used to examine alternative mitigation strategies. The CEACOV model tracks infections accrued by students and faculty, accounting for community transmissions.

Data sources

Data from published literature were used to obtain parameters related to COVID-19 and contact-hours.

Target population

Undergraduate students and faculty at U.S. colleges.

Time horizon

One semester (105 days).

Perspective

Modified societal.

Intervention

COVID-19 mitigation strategies, including social distancing, masks, and routine laboratory screening.

Outcome measures

Infections among students and faculty per 5000 students and per 1000 faculty, isolation days, tests, costs, cost per infection prevented, and cost per quality-adjusted life-year (QALY).

Results of base-case analysis

Among students, mitigation strategies reduced COVID-19 cases from 3746 with no mitigation to 493 with extensive social distancing and masks, and further to 151 when laboratory testing was added among asymptomatic persons every 3 days. Among faculty, these values were 164, 28, and 25 cases, respectively. Costs ranged from about $0.4 million for minimal social distancing to about $0.9 million to $2.1 million for strategies involving laboratory testing ($10 per test), depending on testing frequency. Extensive social distancing with masks cost $170 per infection prevented ($49 200 per QALY) compared with masks alone. Adding routine laboratory testing increased cost per infection prevented to between $2010 and $17 210 (cost per QALY gained, $811 400 to $2 804 600).

Results of sensitivity analysis

Results were most sensitive to test costs.

Limitation

Data are from multiple sources.

Conclusion

Extensive social distancing with a mandatory mask-wearing policy can prevent most COVID-19 cases on college campuses and is very cost-effective. Routine laboratory testing would prevent 96% of infections and require low-cost tests to be economically attractive.

Primary funding source

National Institutes of Health.

SUBMITTER: Losina E

PROVIDER: S-EPMC7755069 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

College Campuses and COVID-19 Mitigation: Clinical and Economic Value.

Losina Elena E Leifer Valia V Millham Lucia L Panella Christopher C Hyle Emily P EP Mohareb Amir M AM Neilan Anne M AM Ciaranello Andrea L AL Kazemian Pooyan P Freedberg Kenneth A KA

Annals of internal medicine 20201221 4

<h4>Background</h4>Colleges in the United States are determining how to operate safely amid the coronavirus disease 2019 (COVID-19) pandemic.<h4>Objective</h4>To examine the clinical outcomes, cost, and cost-effectiveness of COVID-19 mitigation strategies on college campuses.<h4>Design</h4>The Clinical and Economic Analysis of COVID-19 interventions (CEACOV) model, a dynamic microsimulation model, was used to examine alternative mitigation strategies. The CEACOV model tracks infections accrued b ...[more]

PMID: 33347322

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Project description:BackgroundEpidemics of COVID-19 in student populations at universities were a key concern for the 2020-2021 school year. The University of California (UC) System developed a set of recommendations to reduce campus infection rates. SARS-CoV-2 test results are summarized for the ten UC campuses during the Fall 2020 term.MethodsUC mitigation efforts included protocols for the arrival of students living on-campus students, non-pharmaceutical interventions, daily symptom monitoring, symptomatic testing, asymptomatic surveillance testing, isolation and quarantine protocols, student ambassador programs for health education, campus health and safety pledges, and lowered density of on-campus student housing. We used data from UC campuses, the UC Health-California Department of Public Health Data Modeling Consortium, and the U.S. Census to estimate the proportion of each campus' student populations that tested positive for SARS-CoV-2 and compared it to the fraction individuals aged 20-29 years who tested positive in their respective counties.ResultsSARS-CoV-2 cases in campus populations were generally low in September and October 2020, but increased in November and especially December, and were highest in early to mid-January 2021, mirroring case trajectories in their respective counties. Many students were infected during the Thanksgiving and winter holiday recesses and were detected as cases upon returning to campus. The proportion of students who tested positive for SARS-CoV-2 during Fall 2020 ranged from 1.2% to 5.2% for students living on campus and was similar to students living off campus. For most UC campuses the proportion of students testing positive was lower than that for the 20-29-year-old population in which campuses were located.ConclusionsThe layered mitigation approach used on UC campuses, informed by public health science and augmented perhaps by a more compliant population, likely minimized campus transmission and outbreaks and limited transmission to surrounding communities. University policies that include these mitigation efforts in Fall 2020 along with SARS-CoV-2 vaccination, may alleviate some local concerns about college students returning to communities and facilitate resumption of normal campus operations and in-person instruction.

Project description:ObjectivesUniversities are exploring strategies to mitigate the spread of COVID-19 prior to reopening their campuses. National guidelines do not currently recommend testing students prior to campus arrival. However, the impact of presemester testing has not been studied.DesignDynamic SARS-CoV-2 transmission models are used to explore the effects of three presemester testing interventions.InterventionsTesting of students 0, 1 and 2 times prior to campus arrival.Primary outcomesNumber of active infections and time until isolation bed capacity is reached.SettingWe set on-campus and off-campus populations to 7500 and 17?500 students, respectively. We assumed 2% prevalence of active cases at the semester start, and that one-third of infected students will be detected and isolated throughout the semester. Isolation bed capacity was set at 500. We varied disease transmission rates (R0=1.5, 2, 3, 4) to represent the effectiveness of mitigation strategies throughout the semester.ResultsWithout presemester screening, peak number of active infections ranged from 4114 under effective mitigation strategies (R0=1.5) to 10?481 under ineffective mitigation strategies (R0=4), and exhausted isolation bed capacity within 10 (R 0 =4) to 25 days (R0=1.5). Mandating at least one test prior to campus arrival delayed the timing and reduced the size of the peak, while delaying the time until isolation bed capacity was reached. Testing twice in conjunction with effective mitigation strategies (R0=1.5) was the only scenario that did not exhaust isolation bed capacity during the semester.ConclusionsPresemester screening is necessary to avert early and large surges of active COVID-19 infections. Therefore, we recommend testing within 1?week prior to and on campus return. While this strategy is sufficient for delaying the timing of the peak outbreak, presemester testing would need to be implemented in conjunction with effective mitigation strategies to significantly reduce outbreak size and preserve isolation bed capacity.

Dataset Information

College Campuses and COVID-19 Mitigation: Clinical and Economic Value.

Background

Objective

Design

Data sources

Target population

Time horizon

Perspective

Intervention

Outcome measures

Results of base-case analysis

Results of sensitivity analysis

Limitation

Conclusion

Primary funding source

Publications

College Campuses and COVID-19 Mitigation: Clinical and Economic Value.

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