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Table 3 Patient characteristics in SA-2: dCCRT with a standard dose (50ā€“70Ā Gy)

From: Chemotherapy alone versus definitive concurrent chemoradiotherapy for cT4b esophageal squamous cell carcinoma: a population-based study

Ā 

C/T (nā€‰=ā€‰56)

dCCRT with standard dose [50ā€“70Ā Gy] (nā€‰=ā€‰162)

Standardized difference (rounded)a

Number or mean (SD)a

(%)a

Number or mean (SD)a

(%)a

Before PSW

After PSW

Age (year)

56.11 (9.54)

Ā 

56.06 (8.37)

Ā 

0.006

ā‰ˆ 0

Sex

Ā Ā Ā Ā Ā Ā 

Female

1

(2)

7

(4)

0.148

ā‰ˆ 0

Male

55

(98)

155

(96)

Ā Ā 

Residency

Ā Ā Ā Ā Ā Ā 

Non-north

39

(70)

104

(64)

0.116

ā‰ˆ 0

North

17

(30)

58

(36)

Ā Ā 

Drinking

Ā Ā Ā Ā Ā Ā 

No

14

(25)

18

(11)

0.367

ā‰ˆ 0

Yes

42

(75)

144

(89)

Ā Ā 

Smoking

Ā Ā Ā Ā Ā Ā 

No

6

(11)

16

(10)

0.028

ā‰ˆ 0

Yes

50

(89)

146

(90)

Ā Ā 

PET

Ā Ā Ā Ā Ā Ā 

No

41

(73)

59

(36)

0.796

ā‰ˆ 0

Yes

15

(27)

103

(64)

Ā Ā 

Tumor location

Ā Ā Ā Ā Ā Ā 

Non-cervical

51

(91)

137

(85)

0.200

ā‰ˆ 0

cervical

5

(9)

25

(15)

Ā Ā 

N-stage

Ā Ā Ā Ā Ā Ā 

0

4

(7)

16

(10)

0.098

ā‰ˆ 0

1ā€“3

52

(93)

146

(90)

Ā Ā 

BMI

19.30 (3.16)

Ā 

20.74 (3.66)

Ā 

0.422

ā‰ˆ 0

  1. BMI body mass index, C/T chemotherapy, dCCRT definitive concurrent chemoradiotherapy, PET positron emission tomography, PSW propensity-score weighting, SA subgroup analyses, SD standard deviation
  2. aRounded