SARS-CoV-2 Seroprevalence: Demographic and Behavioral Factors Associated with Seropositivity among College Students in a University Setting

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Citation

Diepstra, Karen; Bullington, Brooke W.; Premkumar, Lakshmanane; Shook-Sa, Bonnie E.; Jones, Corbin D.; & Pettifor, Audrey E. (2022). SARS-CoV-2 Seroprevalence: Demographic and Behavioral Factors Associated with Seropositivity among College Students in a University Setting. Journal of Adolescent Health, 71(5), 559-569. PMCID: PMC9377272

Abstract

PURPOSE: Examine SARS-CoV-2 seroprevalence and the association of seropositivity with demographic, geographic, and behavioral variables among University of North Carolina Chapel Hill (UNC-CH) undergraduate students enrolled in the fall 2020 semester.
METHODS: All UNC-CH undergraduate students were invited to participate in the Heelcheck study; participants were weighted to the UNC-CH undergraduate population using raking methods. We estimate SARS-CoV-2 seroprevalence at study entrance (11/12/2020-12/10/2020) and bivariable associations using log-binomial regression.
RESULTS: SARS-CoV-2 seroprevalence was 7.3% (95% confidence interval (CI): 5.4%-9.2%) at baseline. Compared to students who were living off-campus in the Chapel Hill/Carrboro area (CH) for the Fall 2020 semester (8.6% seroprevalence), students who never returned to CH had lower seroprevalence (1.9%, prevalence ratio (PR), 95% CI: 0.22, 0.06-0.81), whereas, students who started the semester on-campus and moved to off-campus CH housing had 18.9% seroprevalence (PR, 95% CI: 2.21, 1.04-4.72) and students who spent the semester living in a Sorority/Fraternity house had 46.8% seroprevalence (PR, 95% CI: 5.47, 2.62-11.46). Those who predicted they would join an indoor party unmasked had 3.8 times the seroprevalence of those who indicated they would not attend (PR, 95% CI: 3.80, 1.58-9.16). Compared to students who disagreed with the statement "…I am not going to let COVID-19 stop me from having fun…", those who agreed had higher seroprevalence (14.0% vs. 5.7%; (PR, 95% CI: 2.45, 1.13-5.32)).
DISCUSSION: Increased seroprevalence was associated with congregate living and participation (actual or endorsed) in social activities. During pandemics, universities must create safe socializing opportunities while minimizing transmission.

URL

http://dx.doi.org/10.1016/j.jadohealth.2022.06.015

Reference Type

Journal Article

Year Published

2022

Journal Title

Journal of Adolescent Health

Author(s)

Diepstra, Karen
Bullington, Brooke W.
Premkumar, Lakshmanane
Shook-Sa, Bonnie E.
Jones, Corbin D.
Pettifor, Audrey E.

Article Type

Regular

PMCID

PMC9377272

Data Set/Study

HeelCheck Study

Continent/Country

United States of America

State

North Carolina

ORCiD

Pettifor - 0000-0002-3387-0817
Bullington - 0000-0002-3341-087X