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Table 2 Lifestyle factors of the studied groups

From: Blood biomarkers of nicotine-induced toxicity in healthy males

Variable

Non-smokers (n = 20)

Passive smokers (n = 30)

Active smokers (n = 40)

p value

Exercise

n

%

n

%

n

%

0.319

 No

19

95

29

96.7

35

87.5

 Yes

1

5

1

3.3

5

12.5

Tea (cups/day) (mean ± SD)

Min.

Max.

Min.

Max.

Min.

Max.

< 0.001**

0

7

0

10

0

20

2.06 ± 1.66

2.75 ± 2.16

5.13 ± 3.82

Coffee (cups/day) (mean ± SD)

Min.

Max.

Min.

Max.

Min.

Max.

0.052*

0

1

0

1

0

5

0.16 ± 0.37

0.08 ± 0.21

0.61 ± 1.4

BMI (kg/m2) (mean ± SD)

29.19 ± 4.79

26.81 ± 4.49

24.43 ± 4.34

< 0.001**

  1. *Significant p ≤ 0.05
  2. **Highly significant p <  0.001
  3. Min. minimum; Max. maximum; SD standard deviation