Table 1 Demographics, symptomatology, and occupational exposure of seropositive and seronegative study participants.

From: SARS-CoV-2 exposure, symptoms and seroprevalence in healthcare workers in Sweden

 

All

Seronegative

Seropositive

 

n = 2149

n = 1739

n = 410

Age (years), mean (SD)

44 (12)

44 (12)

43 (12)

Age: Missing, n (%)

2 (0)

1 (0)

1 (0)

Female, n (%)

1815 (85)

1475 (85)

340 (83)

Male, n (%)

331 (15)

261 (15)

70 (17)

Sex: Missing, n (%)

3 (0)

3 (0)

0 (0)

Symptoms since 1st January 2020, n (%)

   

Fever

538 (25)

304 (17)

234 (57)

Headache

991 (46)

722 (42)

269 (66)

Anosmia

283 (13)

66 (4)

217 (53)

Ageusia

289 (13)

85 (5)

204 (50)

Cough

716 (33)

503 (29)

213 (52)

Malaise

912 (42)

644 (37)

268 (65)

Common cold

738 (34)

557 (32)

181 (44)

Abdominal symptoms

382 (18)

261 (15)

121 (30)

Sore throat

822 (38)

660 (38)

162 (40)

Shortness of breath

303 (14)

205 (12)

98 (24)

Missing

0 (0)

0 (0)

0 (0)

Degree of symptoms, n (%)

   

Mild

1573 (73)

1253 (72)

320 (78)

Severe

116 (5)

63 (4)

53 (13)

No symptoms

460 (21)

423 (24)

37 (9)

Missing

0 (0)

0 (0)

0 (0)

Exposure, n (%)

   

Physicians

439 (21)

355 (21)

84 (21)

Nurses

636 (31)

497 (30)

139 (35)

Assisting nurses

428 (21)

319 (19)

109 (27)

Other healthcare staff

254 (12)

220 (13)

34 (9)

Employees with no patient contact

305 (15)

279 (17)

26 (7)

Direct patient contact

1764 (85)

1393 (83)

371 (93)

Direct contact with COVID-19 patients

962 (46)

734 (44)

228 (57)

Missing

80 (4)

67 (4)

13 (3)

  1. Source data are available as Source Data file.