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Table 3 Prevalence of anti-S positive results among 416 unvaccinated HCWs according to the type of hospital, Egypt, Jan-June 2021

From: Prevalence of severe acute respiratory syndrome coronavirus 2 spike antibodies in some healthcare settings in Egypt

Type of hospital

Crude prevalence%

Adjusteda prevalence%

95%CI

LL%

UL%

Pulmonology hospital

65.7

70.5

55.4

85.6

Performing screening for COVID-19

56.2

60.3

49.1

71.5

Not dealing with COVID-19

55.8

59.8

46.5

73.1

General (receives COVID-19 and other patients)

52.3

56.1

49.9

62.3

COVID-19 isolation

41.8

44.8

33.8

55.8

Outpatient clinics

37.5

40.2

6.2

74.2

  1. aAdjustment of prevalence was done based on sensitivity and specificity of the test kit, as mentioned by the manufacturer