Table 2.
Logistic Regression Models Examining Risk Factors for Positive SARS-CoV-2 Test (Virus and/or Antibody; n = 3904)a
| Characteristic | Minimally Adjusted Model | Fully Adjusted Model |
|---|---|---|
| Risk Factor | Odds Ratio (95% CI) | Odds Ratio (95% CI) |
| Age | ||
| 18–39 | Ref | Ref |
| 40–59 | 0.71 (0.56–0.90) | 0.74 (0.59–0.95) |
| 60 and above | 0.62 (0.42–0.91) | 0.72 (0.49–1.07) |
| Maleb | 1.03 (0.80–1.32) | 1.12 (0.86–1.45) |
| Race/Ethnicity | ||
| Non-Hispanic white | Ref | Ref |
| Non-Hispanic black | 2.13 (1.58–2.87) | 2.06 (1.51–2.80) |
| Non-Hispanic Asian | 0.89 (0.64–1.24) | 0.90 (0.65–1.24) |
| Hispanic/Latinx | 2.17 (1.60–2.94) | 2.10 (1.53–2.89) |
| Other | 1.56 (1.05–2.33) | 1.48 (0.99–2.23) |
| Tobacco Use | ||
| Never | Ref | Ref |
| Current | 0.61 (0.37–1.02) | 0.59 (0.35–1.00) |
| Former | 0.95 (0.67–1.35) | 0.92 (0.64–1.32) |
| Any comorbidityc | 1.11 (0.89–1.40) | 1.09 (0.87–1.38) |
| Direct Patient Care | ||
| None | Ref | |
| Below median | 1.71 (1.18–2.48) | |
| Above median | 1.98 (1.35–2.91) | |
| Hospital Role | ||
| Physician (including trainee) | Ref | |
| Nurse (including trainee) | 1.33 (0.88–2.01) | |
| Technician/technologist | 1.71 (1.08–2.71) | |
| Interpersonal/support | 2.07 (1.25–3.44) | |
| Other patient care | 0.72 (0.42–1.23) | |
| Other nonpatient care | 1.75 (1.01–3.03) | |
| Unclassified | 1.08 (0.35–3.32) |
Abbreviations: CI, confidence interval; Ref, reference group; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.
aResults significant at P < .05 are indicated in bold font.
bReference group: female.
cAny comorbidity includes the following: diabetes, hypertension, asthma, obesity, cancer, cardiovascular or cerebrovascular disease, chronic autoimmune disease, chronic kidney disease, chronic obstructive pulmonary disease, or other chronic lung disease.