Table 2.
Distribution of Adjusted Seroprevalence According to Affiliation in Regional Hospital West Jutland and Pairwise Comparisons of Seroprevalence Between Departments
| Seroprevalence |
Emergency Departments (n = 165) | Medical Departmentsa (n = 829) | Surgical Departmentsb (n = 556) | Department of Biochemistry (n = 150) | Service Sectionc (n = 286) | Anesthesiology (n = 300) | Radiology and Nuclear Medicine (n = 153) | Departments With Limited Patient Contactd (n = 362) | Othere (n = 125) | Total (N = 2926) |
|---|---|---|---|---|---|---|---|---|---|---|
| % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | |
| Seroprevalence | 29.7 (23.1–37.6) | 15.0 (12.5–17.8) | 12.8 (10.0–16.0) | 12.0 (7.39–18.4) | 11.1 (7.68–15.5) | 9.89 (6.69–14.0) | 6.69 (3.54–12.4) | 1.79 (.31–3.90) | 6.97 (3.31–13.1) | 12.0 (10.5–13.4) |
| Difference | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) | pp (95% CI) |
| Other | 22.8 (13.7–31.3) | 8.07 (1.51–12.6) | 5.79 (−.87 to 10.5) | 4.99 (−2.56 to 12.2) | 4.15 (−2.79 to 9.72) | 2.91 (−3.90 to 8.27) | −0.01 (−6.88 to 6.37) | −5.19 (−11.4 to −1.07) | … | … |
| Departments with limited patient contact | 28.0 (21.0–35.9) | 13.3 (10.1–16.3) | 11.0 (7.60–14.4) | 10.2 (5.20–16.7) | 9.34 (5.40–13.8) | 8.10 (4.38– 12.3) | 5.18 (1.26–10.7) | … | … | … |
| Radiology and nuclear medicine | 22.8 (14.2–31.2) | 8.08 (2.19–12.4) | 5.80 (−.20 to 10.4) | 5.00 (−1.99 to 12.2) | 4.16 (−2.15 to 9.58) | 2.92 (−3.26 to 8.13) | … | … | … | … |
| Anesthesiology | 19.9 (12.1–28.3) | 5.15 (.46–9.27) | 2.88 (−1.96 to 7.29) | 2.08 (−3.96 to 9.18) | 1.24 (−4.00 to 6.55) | … | … | … | … | … |
| Service section | 18.6 (10.7–27.1) | 3.92 (−1.02 to 8.22) | 1.64 (−3.44 to 6.23) | 0.84 (−5.39 to 8.05) | … | … | … | … | … | … |
| Department of biochemistry | 17.8 (8.55–26.8) | 3.08 (−3.77 to 8.33) | 0.80 (−6.15 to 6.29) | … | … | … | … | … | … | … |
| Surgical departments | 17.0 (9.64–25.2) | 2.28 (−1.67 to 6.08) | … | … | … | … | … | … | … | … |
| Medical departments | 14.7 (7.55–22.9) | … | … | … | … | … | … | … | … | … |
Seroprevalences are adjusted for assay sensitivity and specificity and presented as percentages with 95% CIs. Differences between affiliations are presented as percentage point with 95% CI; significant differences after Bonferroni correction are shown in bold. Inconclusive results in the antibody test (n < 5) were not included in this table.
Abbreviations: CI, confidence interval; pp, percentage point.
aInternal medicine, pediatrics, oncology, and neurology.
bAll surgical departments, obstetrics and gynecology, otorhinolaryngology, head and neck surgery, and ophthalmology.
cCleaning services, hospital porters, clothing and waste management, depot and archive, telephone switchboard, guidance for patients, relatives, and staff.
dOccupational and social medicine, physiotherapy and occupational therapy, administration, department of technical services, and kitchen.
eParticipants without affiliation (eg, students and participants on call, wage subsidy, and hourly wage workers).