Table 3 Likelihood for seropositivity according to independent variables (predictors) such as home office, known contact to COVID-19 patients, children <15 years of age within the same household, residence in Vienna or outside, age group (comparison to the young 15–25 years old) and symptoms.

From: Neutralising SARS-CoV-2 RBD-specific antibodies persist for at least six months independently of symptoms in adults

Predictor

Odds ratio

95% confidence interval

p-value

Home office (yes/no)

1.91

1.21–3.01

0.005

Known contact to COVID-19 patients

1.27

0.35–4.59

0.719

Children < 15 years in the same household

1.04

0.65–1.64

0.882

Residence in Vienna (y/n)

1.32

0.86–2.03

0.197

Age group 15–24

1.00

  

Age group 25–50

0.56

0.32–0.99

0.046

Age group >50

0.38

0.19–0.77

0.007

Any symptom

1.19

0.80–1.77

0.397

Anosmia/dysgeusia

22.48

7.75–65.22

<0.001

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