Table 1B

Demographic and clinical correlates of COVID-19 testing among HCWs

Full sample, n=2040No infection, n=1442 (70.69%)COVID-19 infection, n=598 (29.31%)Prevalence ratio
(95% CI)
Age, M (SD)39.50 (10.11)39.48 (10.27)39.57 (9.71)1.00 (0.99 to 1.01)
Gender, n (row %)
 Male594 (29.15)426 (71.72)168 (28.28)REF
 Female1432 (70.26)1006 (70.25)426 (29.75)1.05 (0.90 to 1.22)
 Other/prefer not to answer12 (0.59)9 (75)3 (25)0.88 (0.33 to 2.37)
Race/ethnicity, n (row %)
 Caucasian1385 (67.89)999 (72.13)386 (27.87)REF
 Hispanic, Latino or Spanish111 (5.44)58 (52.25)53 (47.75)1.71 (1.39 to 2.12)
 Black or African American221 (10.83)169 (76.47)52 (23.53)0.84 (0.66 to 1.09)
 Asian190 (9.31)126 (66.32)64 (33.68)1.21 (0.97 to 1.50)
 Other48 (2.35)34 (70.83)14 (29.17)1.05 (0.67 to 1.64)
 Multiracial85 (4.17)56 (65.88)29 (34.12)1.22 (0.90 to 1.66)
Region, n (row %)
 Northeast883 (47.12)572 (64.78)311 (35.22)REF
 Midwest248 (13.23)181 (72.98)67 (27.02)0.77 (0.61 to 0.96)
 South474 (25.29)370 (78.06)104 (21.94)0.62 (0.51 to 0.75)
 West268 (14.30)200 (74.63)68 (25.37)0.72 (0.58 to 0.90)
 US territories1 (0.05)1 (100)0 (0)Not estimable
Role in hospital, n (row %)
 Physician attending634 (31.12)465 (73.34)169 (26.66)1.00 (., .)
 Physician resident/fellow180 (8.84)132 (73.33)48 (26.67)1.00 (0.76 to 1.32)
 Physician assistant81 (3.98)60 (74.07)21 (25.93)0.97 (0.66 to 1.44)
 Nurse (practitioner, general, registered)546 (26.80)362 (66.3)184 (33.7)1.26 (1.06 to 1.51)
 Emergency medicine services266 (13.06)172 (64.66)94 (35.34)1.33 (1.08 to 1.63)
 Non-direct patient care96 (4.71)64 (66.67)32 (33.33)1.25 (0.92 to 1.71)
 Other physical care/direct patient contact122 (5.99)86 (70.49)36 (29.51)1.11 (0.82 to 1.50)
 Child life specialist85 (4.17)74 (87.06)11 (12.94)0.49 (0.28 to 0.86)
 Respiratory therapist20 (0.98)20 (100)0 (0)
 Other7 (0.34)5 (71.43)2 (28.57)1.07 (0.33 to 3.48)
Specialty, n (row %)
 Emergency medicine694 (38.30)477 (68.73)217 (31.27)REF
 Internal medicine (outpatient, inpatient, other)271 (14.96)188 (69.37)83 (30.63)0.98 (0.79 to 1.21)
 Internal medicine (critical care)215 (11.87)166 (77.21)49 (22.79)0.73 (0.56 to 0.95)
 Surgery86 (4.75)60 (69.77)26 (30.23)0.97 (0.69 to 1.36)
 Paediatrics149 (8.22)124 (83.22)25 (16.78)0.54 (0.37 to 0.78)
 Family medicine83 (4.58)62 (74.7)21 (25.3)0.81 (0.55 to 1.19)
 Other314 (17.33)210 (66.88)104 (33.12)1.06 (0.87 to 1.28)
Clinical setting, n (row %)
 Emergency medicine651 (31.91)445 (68.36)206 (31.64)REF
 ICU328 (16.08)252 (76.83)76 (23.17)0.73 (0.58 to 0.92)
 Inpatient hospital427 (20.93)318 (74.47)109 (25.53)0.81 (0.66 to 0.98)
 Prehospital176 (8.63)120 (68.18)56 (31.82)1.01 (0.79 to 1.28)
 Outpatient224 (10.98)143 (63.84)81 (36.16)1.14 (0.93 to 1.41)
 Long-term care facility/nursing home74 (3.63)48 (64.86)26 (35.14)1.11 (0.80 to 1.54)
 Other160 (7.84)116 (72.5)44 (27.5)0.87 (0.66 to 1.15)
Facility type, n (row %)
 Academic institution, n (%)703 (34.46)492 (69.99)211 (30.01)1.04 (0.90 to 1.19)
 Community hospital, n (%)724 (35.49)547 (75.55)177 (24.45)0.76 (0.66 to 0.89)
 Outpatient facility, n (%)269 (13.19)187 (69.52)82 (30.48)1.05 (0.86 to 1.27)
 City hospital, n (%)267 (13.09)196 (73.41)71 (26.59)0.89 (0.72 to 1.11)
 Long-term care/skilled nursing facility, n (%)86 (4.22)58 (67.44)28 (32.56)1.12 (0.82 to 1.52)
 Pre-hospital/ambulance/EMS, n (%)258 (12.65)171 (66.28)87 (33.72)1.18 (0.98 to 1.42)
 Other clinical setting, n (%)177 (8.68)123 (69.49)54 (30.51)1.04 (0.83 to 1.32)
  • EMS, emergency medical services; HCWs, healthcare workers.