Background
Practice of using face mask
Technique of using face mask
Methods
Objectives and design
Setting and sample
Data collection
Statistical analyses
Results
Sample characteristics
Demographic characteristic | Study sample (n = 1500) | Hong Kong population (> 18 years old) (n = 5,999,440) | ||
---|---|---|---|---|
Frequency | Percentage (%) | Frequency | Percentage (%) | |
Gender | ||||
Male | 706 | 47.1 | 2,747,743 | 45.8 |
Female | 794 | 52.9 | 3,251,696 | 54.2 |
Age | ||||
18–24 years old | 157 | 10.5 | 626,658 | 10.5 |
25–34 years old | 271 | 18.1 | 1,084,120 | 18.1 |
35–44 years old | 284 | 18.9 | 1,135,285 | 18.9 |
45–54 years old | 322 | 21.5 | 1,289,430 | 21.5 |
55–64 years old | 231 | 15.4 | 922,635 | 15.4 |
65–74 years old | 116 | 7.7 | 464,740 | 7.7 |
> 75 years old | 119 | 7.9 | 476,572 | 7.9 |
Practice of using face mask
Practice of using face mask | Never | Seldom | Sometimes | Often | Always | Not applicable |
---|---|---|---|---|---|---|
Frequency (%) | Frequency | |||||
1. When taking care of family members with fever. (n = 1362) a | 428 (31.4) | 336 (24.7) | 219 (16.1) | 178 (13.1) | 201 (14.7) | 138 |
2. When taking care of family members with respiratory infection. (n = 1370) a | 368 (26.9) | 290 (21.2) | 235 (17.1) | 210 (15.3) | 267 (19.5) | 130 |
3. When visiting clinics during peak season or a flu pandemic. (n = 1478) a | 167 (11.2) | 256 (17.3) | 246 (16.6) | 281 (19.0) | 528 (35.7) | 22 |
4. When visiting hospitals during peak season or a flu pandemic. (n = 1463) a | 110 (7.5) | 168 (11.5) | 195 (13.3) | 286 (19.6) | 704 (48.1) | 37 |
5. When having respiratory symptoms. (n = 1463) a | 161 (10.8) | 270 (18.2) | 332 (22.4) | 289 (19.5) | 431 (29.1) | 17 |
Practice of using face mask | Gender | Age group | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Male | Female | U | 18–24 | 25–34 | 35–44 | 45–54 | 55–64 | 65–74 | > 75 | χ2 | |
Mean rank | Mean rank | ||||||||||
1. When taking care of family members with fever. (n = 1362) a | 646.86 | 711.66 | 208,817.00** | 702.03 | 703.46 | 705.76 | 661.54 | 619.15 | 679.42 | 718.11 | 9.52 |
2. When taking care of family members with respiratory infection. (n = 1370) a | 652.74 | 713.80 | 212,563.00** | 767.86 | 703.92 | 698.49 | 660.94 | 649.02 | 660.26 | 666.93 | 11.12 |
3. When visiting clinics during peak season or a flu pandemic. (n = 1478) a | 675.81 | 796.03 | 227,830.00*** | 813.13 | 739.32 | 735.94 | 756.27 | 692.17 | 654.24 | 780.63 | 14.46* b |
4. When visiting hospitals during peak season or a flu pandemic. (n = 1463) a | 665.20 | 791.13 | 220,667.50*** | 811.35 | 738.37 | 711.45 | 745.39 | 700.75 | 670.04 | 744.97 | 11.43 |
5. When having respiratory symptoms. (n = 1463) a | 656.12 | 817.95 | 214,101.00*** | 850.11 | 731.82 | 776.83 | 746.45 | 669.18 | 690.79 | 715.88 | 27.75***c |
Technique of using face mask
Technique of using face mask | Correct | Incorrect | Description of incorrect technique |
---|---|---|---|
Frequency (%) | Frequency (%) | ||
Wearing a face mask | |||
1. Perform hand hygiene before wearing the face mask. | 128 (8.5) | 1372 (91.5) | Participants did not perform hand hygiene before putting on the face mask. |
2. Choose the appropriate size of face mask. | 1126 (75.1) | 374 (24.9) | Participants chose an oversized face mask or chose an undersized face mask. |
3. Ensure the colored side of the face mask is facing outwards. | 1275 (85.0) | 225 (15.0) | Participants placed the colored side of the face mask inwards. |
4. Ensure the part with metallic strip is on the upper side. | 1427 (95.1) | 73 (4.9) | Participants placed the metallic strip lowermost. |
5. Position the elastic band properly. | 1458 (97.2) | 42 (2.8) | Participants positioned the elastic band to the middle of the ear back or curled up the elastic band to the arm of the glasses. |
6. Press firmly on the metallic strip to the bridge of nose and face. | 742 (49.5) | 758 (50.5) | Participants did not mold the metallic strip or molded the metallic strip up to the bridge of the nose only. |
7. Extend the face mask to cover mouth, nose and chin. | 1262 (84.1) | 238 (15.9) | Participants did not extend the face mask or extended the face mask partially to cover the nose and mouth only. |
8. Avoid touching the face mask once it is secured. | 546 (36.4) | 954 (63.6) | Participants touched the face mask while handling the glasses, scratching the face or rubbing the nose. |
Taking off a face mask | |||
9. Perform hand hygiene before taking off the face mask. | 40 (2.7) | 1460 (97.3) | Participants did not perform hand hygiene before taking off the face mask. |
10. Touch only the elastic bands. | 445 (29.7) | 1055 (70.3) | Participants touched the surface of the face mask or folded the face mask inside the palm. |
11. Dispose of the used face mask in a lidded rubbish bin. | 603 (40.2) | 897 (59.8) | Participants disposed the used face mask in a rubbish bin without a lid. |
12. Perform hand hygiene after disposing the face mask. | 127 (8.5) | 1373 (91.5) | Participants did not perform hand hygiene after disposing the face mask. |
Technique of using face mask | Gender | Age group | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Male | Female | t | 18–24 | 25–34 | 35–44 | 45–54 | 55–64 | 65–74 | > 75 | F | |
Mean (SD) | Mean (SD) | ||||||||||
Number of steps performed correctly (Total steps = 12) | 6 (1.82) | 6 (1.68) | −1.460 | 6 (1.68) | 6 (1.66) | 6 (1.70) | 6 (1.77) | 6 (1.52) | 5 (1.86) | 5 (1.97) | 10.24***† |