Table 1 Distribution of selected characteristics among patients with esophageal squamous cell carcinoma and controls.

From: Functional BCL-2 regulatory genetic variants contribute to susceptibility of esophageal squamous cell carcinoma

Variable

Huaian set

Jinan set

Cases

Controls

P-value1

Cases

Controls

P-value1

No. (%)

No. (%)

No. (%)

No. (%)

 

588

600

 

1000

1000

 

Sex

  

0.678

  

0.426

 Male

413(70.2)

428(71.3)

 

776(77.6)

761(76.1)

 

 Female

175(29.8)

172(28.7)

 

224(22.4)

239(23.9)

 

Age (year)2

  

0.725

  

0.474

 ≤59(or 56)

288(49.0)

300(50.0)

 

516(51.6)

500(50.0)

 

 >59(or 56)

300(51.0)

300(50.0)

 

484(48.4)

500(50.0)

 

Smoking status

  

<0.001

  

<0.001

 No

151(25.7)

397(66.2)

 

248(24.8)

604(60.4)

 

 Yes

437(74.3)

203(33.8)

 

752(75.2)

396(39.6)

 

Drinking status

  

<0.001

  

<0.001

 No

254(43.2)

358 (59.7)

 

447(44.7)

599(59.9)

 

 Yes

334(56.8)

242(40.3)

 

553(55.3)

401(40.1)

 
  1. 1Two-sided χ2 test.
  2. 2Median ages of patients for Huaian set and Jinan set are 59 and 56 years.
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