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. 2021 Jun 22;63(10):577–584. doi: 10.11622/smedj.2021083

Table 3.

HCW contact log with COVID-19 patients by hospital location.

Variable No. (%) of episodes of contact

ARI ward DEM General ward Isolation ward Operating theatre Outpatient clinic Radiology Security Total
Mask

 N95 122 (58) 372 (81) 3 (100) 4,432 (94) 15 (100) 9 (100) 3 (100) 3 (100) 4,959 (91)

 PAPR 29 (14) 45 (10) 0 (0) 264 (6) 0 (0) 0 (0) 0 (0) 0 (0) 338 (6)

 Surgical mask 59 (28) 40 (9) 0 (0) 34 (1) 0 (0) 0 (0) 0 (0) 0 (0) 133 (2)

PPE

 Gown 65 (28) 247 (31) 3 (33) 4,348 (34) 15 (39) 9 (33) 3 (38) 3 (33) 4,693 (34)

 Gloves 69 (30) 248 (31) 3 (33) 4,348 (34) 15 (39) 9 (33) 3 (38) 3 (33) 4,698 (34)

 Face shield 58 (25) 164 (20) 2 (22) 3,984 (31) 8 (21) 8 (30) 1 (13) 3 (33) 4,228 (30)

 Goggles 41 (18) 146 (18) 1 (11) 67 (1) 0 (0) 1 (4) 1 (13) 0 (0) 257 (2)

Contact time (min)

 <5 46 (32) 167 (49) 0 (0) 997 (23) 4 (27) 1 (11) 3 (100) 0 (0) 1,218 (25)

 5-10 34 (24) 100 (29) 1 (33) 1,336 (31) 8 (53) 0 (0) 0 (0) 0 (0) 1,479 (30)

 10-15 23 (16) 49 (14) 1 (33) 943 (22) 0 (0) 4 (44) 0 (0) 0 (0) 1,020 (21)

 15-20 21 (15) 14 (4) 0 (0) 452 (10) 2 (13) 2 (22) 0 (0) 2 (100) 493 (10)

 20-25 6 (4) 5 (1) 0 (0) 172 (4) 0 (0) 0 (0) 0 (0) 0 (0) 183 (4)

 25-30 6 (4) 6 (2) 0 (0) 146 (3) 0 (0) 2 (22) 0 (0) 0 (0) 160 (3)

 >30 6 (4) 3 (1) 1 (33) 301 (7) 1 (7) 0 (0) 0 (0) 0 (0) 312 (6)

Distance from patient

 Touched patient 57 (58) 162 (60) 0 (0) 2,758 (81) 6 (43) 2 (25) 2 (67) 0 (0) 2,987 (79)

 1 m away 18 (18) 79 (29) 3 (100) 345 (10) 5 (36) 6 (75) 0 (0) 0 (0) 456 (12)

 2 m away 7 (7) 15 (6) 0 (0) 83 (2) 0 (0) 0 (0) 1 (33) 2 (100) 108 (3)

 No contact but in the same room 16 (16) 14 (5) 0 (0) 211 (6) 3 (21) 0 (0) 0 (0) 0 (0) 244 (6)

Percentages were calculated using the count in each category within a stratum (e.g. respiratory mask type) divided by the total count in that stratum, expressed as a percentage, in each staff location. ARI: acute respiratory infection, DEM: Department of Emergency Medicine, HCW: healthcare worker, PAPR: powered air-purifying respirator, PPE: personal protective equipment