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Table 1 Patient characteristics

From: Contamination of CT scanner surfaces with SARS-CoV-2 and infective potential after examination of invasively ventilated, non-invasively ventilated and non-ventilated patients with positive throat swabs: prospective investigation using real-time reverse-transcription PCR and viral cell culture

 

No/non-invasive ventilation

Invasive ventilation

Number (sex)

18 (female: 8/male: 10)

28 (female: 10/male: 18)

Age (years; mean ± SD/range)

64.44 ± 15.72/32–88

64.43 ± 11.75/39–86

Mutation analysis

  

Wild type

B.1.1.7

unknown

9 (50.00%)

6 (33.33%)

3 (16.67%)

16 (57.14%)

5 (17.86%)

7 (25.00%)

STT (days)

  

Median

Q1/Q3

Range

10

3.5/12.25

0- 31

21

15.5/28.75

4–38

Days between most recent RT-PCR and CT

  

Median

Q1/Q3

Range

0.5

0/4.75

0–11

8

3.25/11

0–22

Ct value of most recent RT-PCR

  

Low (< 30)

High (> 30)

Unknown

11 (61.11%)

4 (22.22%)

3 (16.67%)

12 (42.86%)

16 (57.14%)

0 (0%)

Duration of patient stay in the CT scanner room (min)

  

Median

11

25

Q1/Q3

7/15.75

21.25/29.75

Range

6–27

10–40

  1. Wild type: SARS-CoV-2 wild type; B1.1.7: SARS-CoV-2 variant of concern; STT: symptom to test time–time between symptom onset and CT examination; Q1: first quartile, Q3: third quartile, RT-PCR: reverse-transcription polymerase chain reaction; Ct value: RT-PCR cycle threshold