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Table 2 Overview of clinical characteristics and the number of somatic mutations in tumour DNA and cfDNA

From: Targeted sequencing of circulating cell-free DNA in stage II-III resectable oesophageal squamous cell carcinoma patients

Sample ID

Stage

PFS time

Post-surgery CRT

Blood drawing time

Number of somatic mutations

Tumour

Pre-surgery

Post-surgery

ESCC01

PT2N0M0G2–3 IIA

5 m

N

2d

12

6

0

ESCC02

PT3N0M0G2 IIB

N

N

3-4 h

13

2

0

ESCC03

PT2N0M0G2 IIA

N

N

3-4 h

13

0

0

ESCC04

PT3N0M0G2 IIA

N

N

3-4 h

17

6

0

ESCC05

PT3N0M0G1 IIA

N

N

9d

9

1

0

ESCC06

PT3N0M0G2 IIA

N

N

5d

3

0

0

ESCC07

PT3N0M0G1 IIA

12 m

Y

3-4 h

3

NA

1

ESCC08

PT3N1M0G1 IIIB

N

N

3-4 h

9

3

0

ESCC09

PT4aN0M0G2 IIIB

N

N

3-4 h

10

8

0

ESCC10

PT4aN0M0G2 IIIB

N

N

9d

20

16

0

ESCC11

PT3N1M0G3 IIIB

4 m

N

3-4 h

5

NA

0

ESCC12

PT3N1M0G2 IIIB

N

Y

3-4 h

2

0

0

ESCC13

PT3N1M0G2 IIIB

N

Y

3-4 h

2

0

0

ESCC14

PT2N1M0G2 IIIA

N

Y

6d

13

4

1

  1. PFS Progression-free survival, N no progression during follow-up, m months, CRT Chemoradiotherapy, NA Not Available