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Table 1 Distribution of selected characteristics in glioma cases and healthy controls

From: Association of leukocyte mitochondrial DNA content with glioma risk: evidence from a Chinese case–control study

Variables

Case (n = 414)

Control (n = 414)

Pvalue

Age(years), No. (%)

  

0.491

<47

204 (49.27)

206 (49.86)

 

≥47

210 (50.73)

208 (50.14)

 

Sex, No. (%)

  

1.000

Male

241 (58.21)

241 (58.21)

 

Female

173 (41.79)

173 (41.79)

 

Smoking status, No. (%)

  

0.108

Never

318 (76.81)

329 (79.47)

 

Ever

96 (23.19)

85 (20.53)

 

Family history of cancer, No. (%)

  

0.103

Yes

45 (10.87)

32 (7.73)

 

No

369 (89.13)

382 (92.27)

 

Pack-years of smoking a , Mean (SD)

26.20 (14.94)

25.29 (13.05)

0.342

White blood cell count (10 9 /L), Mean (SD)

6.2 (4.17)

5.9 (3.32)

0.253

% of neutrophils, Mean (SD)

64.7 (25.32)

62.2 (23.85)

0.144

% of lymphocytes, Mean (SD)

28.1 (19.53)

30.3 (20.64)

0.116

% of monocytes, Mean (SD)

5.4 (3.88)

5.6 (3.35)

0.473

Platelet count (10 9 /L), Mean (SD)

245 (69.05)

253 (74.51)

0.110

WHO grade

   

I/II

175 (42.27)

  

III/IV

239 (57.73)

  
  1. SD, standard deviation.
  2. aOnly for ever smokers.