Specific exposure of ICU staff to SARS-CoV-2 seropositivity: a wide seroprevalence study in a French city-center hospital

Annals of Intensive Care

Table 1 Proportion of SARS-CoV-2 seropositive staff by occupation,

Function	Workers per occupation	SARS-CoV-2 seropositive staff in the category (%)	SARS-CoV-2 seropositive staff out of the category (%)	P*
All staff	971	9	–	–
Healthcare staff	689	11.3	3.2	< 0.001
Physicians	155	12	8.2	0.06
Nurses	274	13.9	7	0.001
Nursing assistants	111	12.6	8.5	0.15
Midwives	27	3.7	9.1	0.33
Radiology technicians	23	4.3	9.1	0.71
Cleaning staff	39	7.7	9	> 0.99
Porters	11	9.1	9	> 0.99
Others	49	0	9.4	0.02
Non-healthcare staff	282	3.2	11.3	< 0.001
Management staff	52	0	9.5	0.01
Nurse managers	37	0	9.3	0.07
Medical secretaries	70	5.7	9.2	0.39
Laboratory and sterilization technicians	43	4.7	9.2	0.42
Caterers	10	10	8.9	0.61
Others	70	2.9	9.4	0.79

SARS-CoV-2: severe acute respiratory syndrome coronavirus
*Proportions of seropositive staff in each category are compared to the proportions of seropositive staff in the other categories with χ² test or Fischer exact test