Table 2.

Results of the seroepidemiology study of (IgG+) SARS-CoV-2 infection conducted in healthcare professionals in the Departamento de Salud Alicante-Hospital General.

	Prevalence of IgG antibodies			OR (95% CI)	p
	n	%	(95% CI)
Total (n = 4179)	274	6.6%	(5.8−7.3)	–	–
Sex
Male (n = 1114)	77	6.9%	(5.4−8.4)	1.1 (0.8−1.4)	0.576
Female (n = 3065)	197	6.4%	(5.5−7.3)	1
Age (years)
≤24 (n = 72)	5	6.9%	(2.3−15.5)	1
25−29 (n = 383)	36	9.4%	(6.3−12.5)	1.4 (0.5−3.7)	0.506
30−34 (n = 375)	29	7.7%	(4.9−10.6)	1.1 (0.4−3.0)	0.817
35−39 (n = 408)	26	6.4%	(3.9−8.9)	0.9 (0.3−2.5)	0.856
40−44 (n = 487)	36	7.4%	(5.0−9.8)	1.1 (0.4−2.8)	0.892
45−49 (n = 503)	29	5.8%	(3.6−7.9)	0.8 (0.3−2.2)	0.692
50−54 (n = 553)	34	6.2%	(4.1−8.2)	0.9 (0.3−2.3)	0.793
55−59 (n = 645)	36	5.6%	(3.7−7.4)	0.8 (0.3−2.1)	0.637
60−64 (n = 688)	36	5.2%	(3.5−7.0)	0.7 (0.3−2.0)	0.542
≥65 (n = 65)	7	10.8%	(2.5−19.1)	1.6 (0.5−5.4)	0.432
Occupation
Physician (n = 974)	85	8.7%	(6.9−10.6)	2.9 (1.0−8.0)	0.041
Nurse (n = 1186)	78	6.6%	(5.1−8.0)	2.1 (0.8−5.9)	0.147
NA (n = 651)	33	5.1%	(3.3−6.8)	1.6 (0.6−4.6)	0.373
Orderly (n = 286)	13	4.5%	(2.0−7.1)	1.4 (0.5−4.5)	0.531
Technician (n = 127)	8	6.3%	(1.7−10.9)	2.0 (0.6−6.9)	0.257
Administrative staff (n = 672)	43	6.4%	(4.5−8.3)	2.1 (0.7−5.9)	0.172
Other healthcare staff (n = 158)	10	6.3%	(2.2−10.4)	2.0 (0.6−6.7)	0.237
Other non-healthcare staff (n = 125)	4	3.2%	(1.0−8.0)	1
Area of care
Primary care (n = 757)	42	5.5%	(3.9−7.2)	1
Hospital emergency department (n = 318)	23	7.2%	(4.2−10.2)	1.3 (0.8−2.3)	0.292
Critical care unit (n = 259)	17	6.6%	(3.4−9.8)	1.2 (0.7−2.1)	0.547
Medical specialisations (n = 545)	45	8.3%	(5.9−10.7)	1.5 (1.0−2.3)	0.055
Surgical specialisations (n = 846)	63	7.4%	(5.6−9.3)	1.4 (0.9−2.1)	0.126
Other (n = 1454)	84	5.8%	(4.5−7.0)	1.0 (0.7−1.5)	0.826