Study participants |
640 |
234 |
299 |
107 |
Male |
249 (39) |
122 (52) |
91 (31) |
36 (34) |
Female |
389 (61) |
112 (48) |
207 (69) |
70 (66) |
Tested for SARS-CoV-2 |
|
|
|
|
Never |
308 (48) |
118 (50) |
147 (49) |
43 (40) |
Once |
173 (27) |
70 (30) |
73 (24) |
30 (28) |
Twice or more |
159 (25) |
46 (20) |
79 (26) |
34 (32) |
Confirmed SARS-CoV-2 infections (positive PCR or antibody test at any time during study period) n (%, 95% CI) |
24 (3.8, 2.4–5.5) |
8 (3.4, 1.5–6.6) |
10 (3.3, 1.6–6.1) |
6 (6.0, 2.1–11.8) |
No symptoms |
5 (21) |
|
2 |
0 |
Mild symptoms, not hospitalised# |
12 (50) |
3 |
6 |
3 |
Moderate symptoms, not hospitalised¶ |
4 (17) |
1 |
1 |
2 |
Hospitalised+ |
3 (12) |
1 |
1 |
1 |
Very severe symptoms (ICU care, intubation or death) |
0 |
0 |
0 |
0 |
Incident infections reported during follow-up period |
8 |
4 |
1 |
3 |
Total follow-up time person-years |
249 |
96 |
103 |
50 |
Incidence rate infections per 100person-years (95% CI) |
3.2 (1.6–6.4) |
4.2 (1.6–10.9) |
1.0 (0.1–6.8) |
6.0 (2.2-17.9) |
Shielding behaviour during the past 7 days during 37 weeks of follow-up§% |
|
|
|
|
Did not leave the house |
10 (3–17) |
10 (1–20) |
9 (3–19) |
10 (3–19) |
Went for grocery shopping |
38 (22–46) |
18 (6–26) |
51 (24–66) |
42 (22–60) |
Went to workplace/schoolƒ |
37 (16–57) |
44 (8–75) |
31 (6–49) |
34 (19–46) |
Used public transportation |
13 (5–18) |
13 (0–21) |
13 (8–22) |
13 (5–21) |