Table 1.
Demographics and Work Characteristics of HCP Who Underwent COVID-19 Testing
| Characteristics | Total Population | IgG Total Tested | IgG Pos | Unique PCR Positive | IgG Pos Plus Unique PCR Pos | Minimal Population Prevalence (IgG and PCR) | χ 2 P Value |
|---|---|---|---|---|---|---|---|
| Number | 3926 | 1702 | 54 (3.2%) (CI, 2.5%–4.0%) | 118 | 172 | 4.4% (CI, 3.7%–5.0%) | |
| Age (mean) | 46.0 | 44.7 | 45.0 | 44.9 | |||
| Gender | P = .003 | ||||||
| Male | 1492 | 535 | 10 (1.8) | 37 | 47 | 3.2% | |
| Female | 2434 | 1167 | 44 (3.8%) | 81 | 125 | 5.1% | |
| Clinical Rolea | P = .28 | ||||||
| Clinical | 2964 | 1097 | 37 (3.4%) | 86 | 123 | 4.2% | |
| Nonclinical | 1409 | 605 | 17 (2.8%) | 32 | 49 | 3.5% | |
| Profession | P < .001 | ||||||
| Nursing staff | 1111 | 586 | 27 (4.6%) | 67 | 94 | 8.5% | |
| Provider | 381 | 366 | 6 (1.6%) | 4 | 10 | 2.6% | |
| Nursing Staff Work Unitb | P = .41 | ||||||
| COVID-19 | 222 | 18 | 8.9% | ||||
| Non-COVID-19 | 202 | 21 | 10.5% |
Abbreviations: CI, confidence interval; COVID-19, coronavirus disease 2019; HCP, healthcare personnel; IgG, immunoglobulin G; PCR, polymerase chain reaction; Pos, positive.
NOTES: Provider = physician, dentist, physician assistant, nurse practitioner, clinical pharmacist, clinical psychologist. Nursing staff = licensed practical nurse, registered nurse, nursing assistant.
aThe designation of clinical and nonclinical was derived from a somewhat larger database that included both permanent and temporary employees.
bWork Unit comparison limited to nursing staff in tertiary care campus.