Table 1 Descriptive statistics for RQI values according to the hospital, the tissue type and the mean of collection.

From: The focus on sample quality: Influence of colon tissue collection on reliability of qPCR data

Hospital

Collection mode

Status of tissue

Num. of samples

Mean RQI

STD

maximum

median

minimum

IQR

A

PAXgene Tissue System

healthy

14

8.0

0.6

8.7

8.2

6.9

0.6

tumour

14

7.8

0.9

8.9

7.9

5.3

0.7

Snap-freezing

healthy

14

4.8

2.0

8.1

3.6

2.7

3.4

tumour

14

6.1

2.4

9.3

7.3

2.2

4.4

B

PAXgene Tissue System

healthy

16

6.3

1.7

8.6

5.9

3.6

3.3

tumour

16

6.0

1.8

8.3

6.4

2.9

3.1

Freezing

healthy

16

3.9

1.6

7.6

3.3

2.2

1.6

tumour

16

5.4

2.3

8.2

6.8

2.6

4.3

  1. STD: standard deviation, IQR: interquartile range.