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Table 1 Demographics of study participants. If not stated differently, all numbers displayed are n (%). Percentages are calculated from n responses to each question. Age and BMI are displayed as means with standard deviation (SD). *COVID-19 immunity (vaccination and/or prior infection) as controlled at MG entrance 09/02/2021. **Displaying answers of participants that reported their full vaccine status only

From: Participatory disease surveillance for a mass gathering — a prospective cohort study on COVID-19, Germany 2021

Demographics

All responses

Age in years, n = 2808

 Mean (SD)

23.8 (± 2.7)

Gender, n = 2798

 Female

1747 (62.4%)

 Male

1049 (37.5%)

 Diverse

2 (0.1%)

BMI in kg/m2, n = 2678

 Mean (SD)

22.4 (± 3)

Any chronic disease, n = 2635

 Allergies

741 (28.1%)

 Others

187 (7.1%)

Immune deficiency, n = 2782

 Immune deficiency

35 (1.3%)

Smoking, n = 2784

 Active smoker

180 (6.5%)

Healthcare profession, n = 2735

 Medical student

1231 (45%)

 Hospital

702 (25.7%)

 Doctors’ office

112 (4.1%)

 Nursing facility or retirement home

12 (0.4%)

 Other medical field

302 (11%)

 Not health care sector

376 (13.7%)

Residency, n = 2808

 Germany

2633 (94.1%)

 Abroad

165 (5.9%)

COVID-19 immunity*, n = 2808

Full immunity

2808 (100%)

Type of COVID-19 vaccine**, n = 2062

 2 × BNT162b2 (BioNTech/Pfizer)

1224 (59.4%)

 2 × mRNA-1273 (Moderna)

234 (11.3%)

 2 × AZD1222 (ChAdOx1, AstraZeneca)

97 (4.7%)

 1 × JNJ-78436735 (Ad26.COV2.S, Johnson&Johnson)

27 (1.3%)

 2 × Any combination

480 (23.3%)