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Volume 27, Number 11—November 2021

Probability-Based Estimates of Severe Acute Respiratory Syndrome Coronavirus 2 Seroprevalence and Detection Fraction, Utah, USA

Matthew H. SamoreComments to Author , Adam Looney, Brian Orleans, Tom Greene, Nathan Seegert, Julio C. Delgado, Angela Presson, Chong Zhang, Jian Ying, Yue Zhang, Jincheng Shen, Patricia Slev, Maclean Gaulin, Mu-Jeung Yang, Andrew T. Pavia, and Stephen C. Alder
Author affiliations: Veterans Affairs Salt Lake City Health Care System, Salt Lake City, Utah, USA (M.H. Samore); University of Utah, Salt Lake City (M.H. Samore, A. Looney, B. Orleans, T. Greene, N. Seegert, J.C. Delgago, A. Presson, C. Zhang, J. Ying, Y. Zhang, J. Shen, P. Slev, M. Gaulin, M.-J. Yang, A.T. Pavia, S.C. Alder)

Main Article

Table 2

Characteristics of participants in a study of SARS-CoV-2 seroprevalence, Utah, USA*

Characteristics No. (%) participants, n = 8,108
F 4,335 (53.5)
3,773 (46.5)
Age, y
12–<18 755 (9.3)
18–<45 3,366 (41.5)
45–64 2,345 (28.9)
65–74 1,087 (13.4)
555 (6.8)
Ethnicity, n = 8044
Hispanic 528 (6.6)
7,516 (93.4)
Race, n = 7,839
White 7,452 (95.1)
Black or African American 34 (0.4)
American Indian or Alaska Native 32 (0.4)
Asian 159 (2.0)
Native Hawaiian or other Pacific Islander 40 (0.5)
122 (1.6)
Underlying conditions
Diabetes 508 (6.3)
Hypertension 1,078 (13.3)
Cardiovascular disease 354 (4.4)
Asthma 841 (10.4)
Emphysema 72 (0.9)
Cancer 130 (1.6)
Immunosuppressive therapy
79 (1.0)
Exposure, n = 8,084
Contact with COVID-19 case
360 (4.5)
Prior testing
Tested for COVID-19 at any time 716 (8.8)

*Participants completed survey and had serum collected to test for SARS-CoV-2 IgG. n values indicate number of responses available in that category COVID-19, coronavirus disease; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.

Main Article

Page created: August 05, 2021
Page updated: October 19, 2021
Page reviewed: October 19, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.