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Table 2 Variables affecting initiation of smoking (new smokers) during 6 years of medical education.

From: The incidence of smoking and risk factors for smoking initiation in medical faculty students: cohort study

Variables

n

New smokers

%

Relative risk

95% CI

p*

Gender

   Female

37

8

21.6

   

   Male

56

22

39.3

1.817

(0.91–3.64)

0.074

Family location

   Urban

59

17

28.8

   

   Rural

34

13

38.2

1.327

(0.74–2.38)

0.349

Other smokers among friends

   No

65

16

24.6

   

   Yes

28

14

50.0

2.031

(1.16–3.57)

0.016

Smoking family members

   No

39

10

25.6

   

   Yes

54

20

37.0

1.444

(0.76–2.73)

0.246

Tea consumption

   No

6

3

50.0

   

   Yes

87

27

31.0

0.621

(0.26–1.47)

0.383**

Alcohol use

   No

84

27

32.1

   

   Yes

9

3

33.3

1.037

(0.39–2.75)

1.0**

Coffee consumption

   No

40

10

25.0

   

   Yes

53

20

37.7

1.509

(0.80–2.86)

0.193

Boyfriend/girlfriend

   No

59

16

27.1

   

   Yes

34

14

41.2

1.518

(0.85–2.71)

0.163

Sports

   Playing

13

4

30.8

   

   Not playing

80

26

32.5

1.056

(0.44–2.53)

1.0**

Nutrition

   Sufficient

73

20

27.4

   

   Insufficient

20

10

50.0

1.825

(1.03–3.25)

0.05

  1. *: Chi-square test, **: Fisher's exact test, %: individuals who started smoking during 6 years/total number of individuals, CI: confidence interval.