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. 2020 May 27;44:434–438. doi: 10.1016/j.ajem.2020.05.065

Table 1.

General characteristics of participants.

N95 group
(n = 40)
SM group
(n = 40)
p Value
Age, mean ± SD, years 32 ± 6 31 ± 7 0.459
Gender, n (%)
 Male 18 (45.0) 19 (47.5) 0.823
 Female 22 (55.0) 21 (52.5)
Height, median (IQR), cm 168 (160–172) 167 (160–172) 0.933
Weight, mean ± SD, kg 61 ± 11 61 ± 10 0.965
BMI, median (IQR), kg/m2 21.4 (20.2–24.1) 21.9 (19.7–23.5) 0.828
Professional position, n (%)
 Doctors 11 (27.5) 12 (30.0) 0.805
 Nurses 29 (72.5) 28 (70.0)
Career experience, mean ± SD, years 8.9 ± 6.7 8.0 ± 6.7 0.570

Data were expressed as number, percentage, mean ± SD or median (IQR). SM: surgical mask; BMI: body mass index.