Table 6 Multiple logistic regression analysis for predictors associated with regular smoking

Gender

Female

1

–

0

Male

5.449 (1.851–16.040)

0.002

1

Age (years)

18–20

1

–

0

21–23

0.735 (0.161–3.362)

0.691

1

24–26

0.481 (0.088–2.626)

0.398

2

27≤

2.123 (0.396–11.382)

0.380

3

Academic year

1st

1

–

0

2nd

5.002 (0.487–51.376)

0.176

1

3rd

8.478 (0.716–100.318)

0.090

2

4th

14.923 (1.094–203.531)

0.043

3

5th

21.935 (1.746–275.497)

0.017

4

6th

21.971 (1.686–286.290)

0.018

5

Skipping breakfast

Less than twice a week

1

–

0

Twice or more a week

1.806 (0.848–3.846)

0.126

1

Eating out

Less than twice a day

1

–

0

Twice or more a day

2.492 (1.165–5.331)

0.019

1

Health status

Good

1

–

0

Poor

2.248 (0.855–5.911)

0.101

1

Sleeping status

Good

1

–

0

Poor

1.232 (0.527–2.883)

0.630

1

Alcohol drinking

Never

1

–

0

Less than three times a week

3.336 (1.241–8.970)

0.017

1

Three times or more a week

9.484 (3.335–26.970)

0.000

2

GHQ 12 score

< 4

1

–

0

≥4

0.339 (0.136–0.845)

0.020

1

Received training in smoking cessation

Yes

1

–

0

No

2.985 (0.640–13.915)

0.164

1

Father’s smoking

Non-smoker or no father

1

–

0

Regular smoker

1.812 (0.757–4.340)

0.182

1

Professionalism score (per 1 point increase)

0.719 (0.608–0.850)

0.000

–