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Table 2 Sample characteristics by smoking status

From: Emotional, behavioural problems and cigarette smoking in adolescence: findings of a Greek cross-sectional study

  Smoking status  
  No Yes  
  n % n % P χ2 test
Age (years)      
12-15 670 96.30 26 3.70 <0.001
16-18 255 76.30 79 23.70  
Gender      
Girls 557 89.00 69 11.00 0.274
Boys 368 91.10 36 8.90  
Family socioeconomic status      
Low 317 84.30 59 15.70 <0.001
Medium 436 92.80 34 7.20  
High 172 93.50 12 6.50  
Mother smoker      
No 580 92.50 47 7.50 <0.001
Yes 345 85.60 58 14.40  
Father smoker      
No 447 93.10 33 6.90 0.001
Yes 478 86.90 72 13.10  
Exposure to family members' smoking      
No 601 91.90 53 8.10 0.003
Yes 324 86.20 52 13.80  
Leisure time, mean (SD) 58.60(23.40) 57.70(23.60) 0.720*
  1. *Student's t-test