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Table 1 Demographics and characteristics of participants undergoing baseline fit testing. SD = standard deviation. KC denotes Kimberly-Clark Inc

From: 3D Printed frames to enable reuse and improve the fit of N95 and KN95 respirators

 

No. (%) or Mean +/- SD (range)

Characteristic

1860 N95 respirators (n=34)

8210 N95 respirators (n=10)

KC duckbill respirators (n=16)

KN95 respirators (n=25)

Sex

  Female

28 (82.4%)

 6 (60.0%)

14 (87.5%)

22 (88.0%)

  Male

 6 (17.6%)

 4 (40.0%)

2 (12.5%)

3 (12.0%)

Age

 36.4 +/- 10.3

 32.9 +/- 9.1

33.1 +/- 9.3

36.5 +/- 12.5

Ethnicity

  Asian/Pacific Islander

 11 (32.4%)

3 (30.0%)

2 (12.5%)

5 (20.0%)

  White/Caucasian

 11 (32.4%)

7 (70.0%)

3 (18.8%)

8 (32.0%)

  Black/African American

 8 (23.5%)

0 (0.0%)

8 (50.0 %)

9 (36.0%)

  Hispanic/Latino

 3 (8.8%)

0 (0.0%)

2 (12.5%)

3 (12.0%)

  Native American

 1 (2.9%)

0 (0.0%)

1 (6.3%)

0 (0.0%)

Body mass index (BMI)

 25.7 +/- 8.0

23.3 +/-2.7

30.1 +/- 10.0

26.7 +/- 8.5

Healthcare role

  Attending physician

15 (44.1%)

2 (20.0%)

1 (6.3%)

6 (24.0%)

  Resident physician or fellow

1 (2.9%)

0 (0.0%)

0 (0.0%)

2 (8.0%)

  Medical student

3 (8.8%)

3 (30.0%)

0 (0.0%)

2 (8.0%)

  Researcher

5 (14.7%)

5 (50.0%)

3 (18.8%)

1 (4.0%)

  Nurse

3 (8.8%)

0 (0.0%)

3 (18.8%)

5 (20.0%)

  Medical Assistant

5 (14.7%)

0 (0.0%)

5 (31.3%)

5 (20.0%)

  Clinic Staff

2 (5.9%)

0 (0.0%)

4 (25.0%)

4 (16.0%)

Mask size (previously fitted)

  Small

 11 (32.4%)

 6 (60.0%)

3 (18.8%)

6 (24.0%)

  Regular

 23 (67.6%)

 4 (40.0%)

13 (81.3%)

19 (76.0%)

Baseline Testing Pass Rate

30/34 (88.2%)

9/10 (90.0%)

15/16 (93.8%)

12/25 (48.0%)