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Table 1 List of countries included in the analysis

From: Global trends and predictors of face mask usage during the COVID-19 pandemic

Country Total responses Complete responsesa Analytic sampleb
18,730,575 (100%) 14,552,118 (77.69%) 13,723,810 (73.27%)
Argentina 659,009 (3.52%) 484,352 (2.59%) 435,134 (2.32%)
Australia 325,885 (1.74%) 266,113 (1.42%) 254,095 (1.36%)
Austria 138,777 (0.74%) 113,097 (0.6%) 111,133 (0.59%)
Belgium 142,999 (0.76%) 101,548 (0.54%) 97,550 (0.52%)
Brazil 2,322,508 (12.4%) 1,788,903 (9.55%) 1,700,210 (9.08%)
Bulgaria 96,459 (0.51%) 75,085 (0.4%) 72,191 (0.39%)
Canada 417,071 (2.23%) 346,718 (1.85%) 329,517 (1.76%)
Chile 324,447 (1.73%) 256,195 (1.37%) 229,449 (1.22%)
Colombia 574,169 (3.07%) 449,043 (2.4%) 394,540 (2.11%)
Costa Rica 167,986 (0.9%) 131,144 (0.7%) 115,907 (0.62%)
Czech Republic 213,108 (1.14%) 168,216 (0.9%) 162,533 (0.87%)
Denmark 306,917 (1.64%) 257,938 (1.38%) 254,406 (1.36%)
Finland 157,593 (0.84%) 133,380 (0.71%) 125,433 (0.67%)
France 708,994 (3.79%) 459,218 (2.54%) 442,412 (2.36%)
Germany 763,760 (4.08%) 628,053 (3.35%) 619,066 (3.31%)
Greece 197,813 (1.06%) 163,753 (0.87%) 154,268 (0.82%)
Hungary 320,668 (1.71%) 255,230 (1.36%) 242,901 (1.3%)
India 1,083,384 (5.78%) 728,852 (3.89%) 642,297 (3.43%)
Indonesia 547,797 (2.92%) 398,395 (2.13%) 370,107 (1.98%)
Ireland 163,006 (0.87%) 131,488 (0.7%) 125,645 (0.67%)
Israel 193,693 (1.03%) 156,551 (0.84%) 150,858 (0.81%)
Italy 989,919 (5.29%) 796,122 (4.25%) 775,840 (4.14%)
Japan 1,418,201 (7.57%) 1,178,538 (6.29%) 1,163,828 (6.21%)
Mexico 1,831,010 (9.78%) 1,425,019 (7.61%) 1,302,477 (6.95%)
Netherlands 355,421 (1.9%) 294,844 (1.57%) 265,162 (1.42%)
New Zealand 125,601 (0.67%) 101,695 (0.54%) 96,472 (0.52%)
Norway 205,460 (1.1%) 171,999 (0.92%) 157,285 (0.84%)
Poland 388,553 (2.07%) 265,143 (1.42%) 257,927 (1.38%)
Portugal 353,606 (1.89%) 247,065 (1.32%) 238,697 (1.27%)
Romania 385,949 (2.06%) 308,116 (1.64%) 293,426 (1.57%)
Russia 273,870 (1.46%) 214,795 (1.15%) 201,447 (1.08%)
Slovenia 43,665 (0.23%) 35,613 (0.19%) 34,606 (0.18%)
South Africa 235,188 (1.26%) 189,818 (1.01%) 179,337 (0.96%)
Spain 659,951 (3.52%) 518,427 (2.77%) 503,994 (2.69%)
Sweden 484,930 (2.59%) 409,192 (2.18%) 385,530 (2.06%)
Switzerland 148,638 (0.79%) 115,230 (0.62%) 112,087 (0.6%)
Turkey 480,588 (2.57%) 359,907 (1.92%) 336,594 (1.8%)
United Kingdom 523,982 (2.8%) 427,323 (2.28%) 389,449 (2.08%)
  1. aFull sample for the primary model (April 23, 2020 - October 31, 2020)
  2. bComplete cases (analytic sample) included in the primary model (April 23, 2020 - October 31, 2020)