Volume 27, Number 4—April 2021
Dispatch
SARS-CoV-2 Seropositivity among US Marine Recruits Attending Basic Training, United States, Spring–Fall 2020
Andrew G. Letizia
, Yongchao Ge, Carl W. Goforth, Dawn L. Weir, Rhonda Lizewski, Stephen Lizewski, Alessandra Soares-Schanoski, Sindhu Vangeti, Nada Marjanovic, Stuart C. Sealfon, and Irene Ramos
, Yongchao Ge, Carl W. Goforth, Dawn L. Weir, Rhonda Lizewski, Stephen Lizewski, Alessandra Soares-Schanoski, Sindhu Vangeti, Nada Marjanovic, Stuart C. Sealfon, and Irene Ramos
Table 2
Association between demographic variables and SARS-CoV-2 IgG results in study of seroprevalence in US Marine recruits, United States, May 11–September 7, 2020*
| Characteristic |
IgG result |
Univariable analysis |
Multivariable analysis |
|||||
|---|---|---|---|---|---|---|---|---|
| Negative |
Positive |
OR (95% CI) |
p value |
OR (95% CI) |
p value |
|||
| Age, y, mean (SD) | 19.1 (1.9) | 19.0 (1.7) | 0.99 (0.92–1.05) | 0.672 | 0.96 (0.89–1.02) | 0.212 | ||
| Sex | ||||||||
| M | 2682 (91.3) | 257 (8.7) | Referent | Referent | ||||
| F |
225 (87.5) |
32 (12.5) |
1.48 (0.99–2.17) |
0.048 |
1.57 (1.02–2.33) |
0.033 |
||
| Race or ethnicity | ||||||||
| Non-Hispanic White | 1737 (95.6) | 80 (4.4) | Referent | Referent | ||||
| Non-Hispanic Black | 352 (85.0) | 62 (15.0) | 3.82 (2.69–5.42) | <0.001 | 3.54 (2.47–5.05) | <0.001 | ||
| Non-Hispanic Other | 185 (93.9) | 12 (6.1) | 1.41 (0.72–2.54) | 0.283 | 1.32 (0.67–2.39) | 0.388 | ||
| Hispanic |
633 (82.4) |
135 (17.6) |
4.63 (3.47–6.22) |
0.001 |
3.80 (2.82–5.14) |
<0.001 |
||
| State group | ||||||||
| Early spring | 591 (84.3) | 110 (15.7) | Referent | Referent | ||||
| Late spring | 1263 (90.9) | 126 (9.1) | 0.54 (0.41–0.71) | <0.001 | 0.61 (0.46–0.81) | 0.001 | ||
| Summer | 951 (95.7) | 43 (4.3) | 0.24 (0.17–0.35) | <0.001 | 0.35 (0.23–0.50) | <0.001 | ||
| Other† | 102 (91.1) | 10 (8.9) | 0.53 (0.25–0.99) | 0.065 | 0.54 (0.25–1.04) | 0.085 | ||
*Values are no. (%) except as indicated. Univariable odds ratio and p value were computed on the basis of the logistic regression with a single variable only. Multivariable odds ratio and p value were computed by using all 4 variables in the model. OR, odds ratio; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2. †Inconclusive assay (not residing in the United States) or participants left residence question blank or answered by marking unknown.
Page created: January 26, 2021
Page updated: March 18, 2021
Page reviewed: March 18, 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.