An Epidemiological Investigation on the Correct Wearing of Face Mask
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT04474028|
Recruitment Status : Completed
First Posted : July 16, 2020
Last Update Posted : November 6, 2020
|Condition or disease|
|Respiratory Infectious Diseases|
- Overall design：This study uses the methods of cross-sectional survey and chance sampling.
- Sign the Informed Consent Form.
- Investigation on the basic situation of personnel: The gender, age and education level of the subjects were analyzed as the factors influencing whether the mask was worn correctly or not.
- Investigation on the types of wearing masks： 1) The types of masks worn by the subjects were recorded as the basis of stratified statistics.
2) Mask suitability testing：
- Visual inspection whether the mask is close to the face with obvious gaps.
- Breathing test whether it can blow the cotton wool under the eyes when the subject taking a deep breath.
- Spray test The FT-30 qualitative fitness test system of 3M company was used to test the suitability and correctness of wearing mask.
In the spray test, all subjects underwent a sensitivity test to prove their ability to smell the bitterness of the reagent, and then were randomly divided into a hood group and a direct spray group.
In order to objectively reflect the overall situation of the subjects, it is necessary to cover many ages and educational levels of men and women.
Each subject participated in the study for about 5-6 minutes, and the total duration of this study was about 3 months.
|Study Type :||Observational|
|Actual Enrollment :||6000 participants|
|Observational Model:||Ecologic or Community|
|Official Title:||An Epidemiological Investigation on the Prevention of Respiratory Infectious Diseases by Wearing Mask Correctly|
|Actual Study Start Date :||June 19, 2020|
|Actual Primary Completion Date :||August 31, 2020|
|Actual Study Completion Date :||August 31, 2020|
The subject wears a mask and a hood, opens his/her mouth to breathe, and sticks out his/her tongue properly. Using the fitness test reagent to spray into the hood.
Direct spray group
The subject wears a mask and his/her tongue sticks out properly. The suitability test reagent is used to spray directly to the subject from the top, bottom, left side and right side twice respectively.
- can or can't fell bitterness [ Time Frame: Immediately after spray test ]
- Whenever the subject feels bitter, it means that the mask does not fit well with the subject's face.
- If the subjects do not feel bitter all the time, it means that the mask is suitable for the subjects' face and can be worn.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04474028
|Fuwai hospital, Beijing|
|Beijing, Beijing, China, 100037|
|Taizhou Health Bureau|
|Taizhou, Jiangsu, China, 225300|
|Jiexiu Health Bureau|
|Jinzhong, Shanxi, China, 032005|
|Yuanqu Health Bureau|
|Yuncheng, Shanxi, China, 043700|
|Fuwai Yunnan Cardiovascular Hospital|
|Kunming, Yunnan, China, 650000|
|Luliang Health Bureau|
|Qujing, Yunnan, China, 655601|
|Shizong Health Bureau|
|Qujing, Yunnan, China, 655700|
|Luoping Health Bureau|
|Qujing, Yunnan, China, 655816|
|Principal Investigator:||Xiang-Bin Pan||Fuwai Yunnan Cardiovascular Hospital|