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  • Children should not be ...

Children should not be forced to wear face masks, recommends JAMA study

dr anushaBy dr anushaPublished On 2021-07-21T09:00:09+05:30  |  Updated On 2021-07-21T09:00:25+05:30
Children should not be forced to wear face masks, recommends JAMA study

Many governments recommend face masks for children during the ongoing COVID-19 pandemic but the evidence base is weak for this recommendation. Walach et al have assessed the carbon dioxide content in exhaled air and found that most of the complaints reported by children could be linked to hypercapnia. Researchers conducted a randomized controlled trial which included children aged 6 -17...

Many governments recommend face masks for children during the ongoing COVID-19 pandemic but the evidence base is weak for this recommendation. Walach et al have assessed the carbon dioxide content in exhaled air and found that most of the complaints reported by children could be linked to hypercapnia.

Researchers conducted a randomized controlled trial which included children aged 6 -17 years constituting 20 girls and 25 boys. In this experimental study carbon dioxide content was measured in inhaled and exhaled air with and without 2 types of masks( N95 and surgical mask). A 3-minute continuous measurement was taken for baseline carbon dioxide levels without a face mask. A 9-minute measurement for each type of mask was allowed: 3 minutes for measuring the carbon dioxide content in joint inhaled and exhaled air, 3 minutes for measuring the carbon dioxide content during inhalation, and 3 minutes for measuring the carbon dioxide content during exhalation.

Major findings of the study are:

- The pretest baseline CO2 level was found 268 ppm with a range of 100-628ppm.

- Upon analysis it was found that CO2 level in inhaled air with surgical mask was 1312 ppm and with N95 mask was 1391 ppm.

- The youngest children had the highest values, with one 7-year-old child's carbon dioxide level measured at 25000 ppm.

- Carbon dioxide content of joint exhaled and inhaled air with surgical mask was found to be 2650ppm and with N95 mask was found to be 2677 ppm

- Exhaled air had significantly high CO2 level with any type of mask with mean value being 3847ppm.

Also from the study researchers found that the value of the child with the lowest carbon dioxide level was 3-foldgreater than the limit of 0.2 % by volume(which is recommended upper limit for closed rooms).

In the dead space volume of the masks, which collects exhaled carbon dioxide quickly for short and this carbon dioxide mixes with fresh air and elevates the carbon dioxide content of inhaled air under the mask, and this was more pronounced in this study for younger children.

Authors conclude-"We suggest that decision-makers weigh the hard evidence produced by these experimental measurements accordingly, which suggest that children should not be forced to wear face masks."

Source: Walach H, Weikl R, Prentice J, et al. Experimental Assessment of Carbon Dioxide Content in Inhaled Air With or Without Face Masks in Healthy Children: A Randomized Clinical Trial. JAMA Pediatr. Published online June 30, 2021. doi:10.1001/jamapediatrics.2021.2659

COVID-19 safety measures face masks in children hypercapnia following face masks JAMA Pediatrics 
Source : JAMA pediatrics
dr anusha
dr anusha

    Dr Anusha S completed her M.B.B.S from Dr. P.S.I.M.S ,Vijayawada and M.D. Pediatrics from prestigious Manipal University. Currently working as senior resident in Department of Pediatrics , Mallreddy Medical College for Women, Hyderabad. She is also actively involved in various research activities of department.

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