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Table 1 Description of the study population, with demographic characteristics, frequency and qualitative characteristics of use of masks

From: How do the general population behave with facemasks to prevent COVID-19 in the community? A multi-site observational study

Characteristics Overall, n (%) Outdoor, n (%) Indoor, n (%)
Urban Rural Urban Rural
Number of observations 3354 1165 550 974 665
Gender
 Female 1943 (57.9) 705 (60.5) 303 (55.1) 550 (56.5) 385 (57.9)
 Male 1411 (42.1) 460 (39.5) 247 (44.9) 424 (43.5) 280 (42.1)
Age category
 21–40 years 1495 (44.6) 705 (60.5) 141 (25.6) 456 (46.8) 193 (29)
 41–65 years 1184 (35.3) 373 (32) 190 (34.5) 365 (37.5) 256 (38.5)
  > 65 years 675 (20.1) 87 (7.5) 219 (39.8) 153 (15.7) 216 (32.5)
Time of day
 Morning 1454 (43.4) 269 (23.1) 400 (72.7) 328 (33.7) 457 (68.7)
 Afternoon 1900 (56.6) 896 (76.9) 150 (27.3) 646 (66.3) 208 (31.3)
Mask mandated
 No 2773 (82.7) 1165 (100) 550 (100) 510 (52.4) 548 (82.4)
 Yes 581 (17.3) 0 (0) 0 (0) 464 (47.6) 117 (17.6)
Presence of a facemask
 No 1462 (43.6) 732 (62.8) 304 (55.3) 235 (24.1) 191 (28.7)
 Yes 1892 (56.4) 433 (37.2) 246 (44.7) 739 (75.9) 474 (71.3)
Type of facemask (n = 1892)
 Surgical facemask 1075 (56.8) 266 (61.4) 131 (53.3) 419 (56.7) 259 (54.6)
 Cloth mask 817 (43.2) 167 (38.6) 115 (46.7) 320 (43.3) 215 (45.4)
Quality of mask positioning (n = 1892)
 Correct 1422 (75.2) 264 (61) 191 (77.6) 576 (77.9) 391 (82.5)
 Incorrect 470 (24.8) 169 (39) 55 (22.4) 163 (22.1) 83 (17.5)
Incorrect positioning (n = 470)
 Below the mouth 141 (30) 82 (48.5) 14 (25.5) 40 (24.5) 5 (6)
 Below the nose 130 (27.7) 37 (21.9) 23 (41.8) 37 (22.7) 33 (39.8)
 Cross straps 61 (13) 8 (4.7) 6 (10.9) 31 (19) 16 (19.3)
 Not adjusted on the nose 43 (9.1) 10 (5.9) 3 (5.5) 24 (14.7) 6 (7.2)
 Hair down on face 33 (7) 17 (10.1) 5 (9.1) 5 (3.1) 6 (7.2)
 Partial mask attachment with strap 35 (7.4) 9 (5.3) 1 (1.8) 13 (8) 12 (14.5)
 Not stretched under the chin 13 (2.8) 2 (1.2) 1 (1.8) 8 (4.9) 2 (2.4)
 On one ear 10 (2.1) 1 (0.6) 2 (3.6) 4 (2.5) 3 (3.6)
 On the forehead 3 (0.6) 3 (1.8) 0 (0) 0 (0) 0 (0)
 Worn backward 1 (0.2) 0 (0) 0 (0) 1 (0.6) 0 (0)
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