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. 2021 Mar 22;7(1):00843-2020. doi: 10.1183/23120541.00843-2020

TABLE 4.

Country of residence and sex of participants, displayed in total and by age groups (n=556)

Total 0–14 years 15–29 years 30–49 years 50 years and above
Subjects n 556 172 136 154 94
Country#
 England 121 (22) 34 (20) 32 (24) 36 (23) 19 (20)
 USA 101 (18) 35 (20) 23 (17) 26 (17) 17 (18)
 Germany 78 (14) 34 (20) 9 (7) 21 (14) 14 (15)
 Switzerland 42 (8) 8 (5) 16 (12) 5 (3) 13 (14)
 Australia 27 (5) 11 (6) 5 (4) 5 (3) 6 (6)
 Italy 22 (4) 7 (4) 6 (4) 9 (6) 0
 Canada 20 (4) 7 (4) 3 (2) 6 (4) 4 (2)
 The Netherlands 18 (3) 2 (1) 8 (6) 5 (3) 3 (3)
 Scotland 12 (2) 4 (2) 3 (2) 3 (2) 2 (2)
 Denmark 10 (2) 1 (1) 4 (3) 2 (1) 3 (3)
 France 10 (2) 3 (2) 2 (1) 2 (1) 3 (3)
 Norway 10 (2) 2 (1) 0 6 (4) 2 (2)
 Other European countries 60 (11) 14 (8) 19 (14) 22 (14) 5 (5)
 Other non-European countries 25 (4) 10 (6) 6 (4) 6 (4) 3 (3)
Sex (n=555)
 Male 214 (39) 92 (53) 49 (36) 41 (27) 32 (34)
 Female 340 (61) 80 (47) 86 (63) 113 (73) 61 (66)
 Other 1 (0) 0 1 (1) 0 0

Data are presented as n (%). #: countries with n≥10 displayed in table, countries with n<10 were categorised into other European countries and other non-European countries.