Table 4 Ordered logistic regression for factors contributing to the stages of change of the readiness to quit smoking (N = 735)

Education level

0.356

 Less than high school

1

1

1

 High school

0.97 (0.56-1.67)

1.31 (0.63-2.72)

 More than high school

0.81 (0.41-1.64)

1.98 (0.86-4.57)

Chronic disease

0.002

 Yes

1

1

1

 No

0.52 (0.31-0.88)

0.36 (0.20-0.67)

Anxiety

1

0.97 (0.92-1.02)

1.07 (1.01-1.13)

0.016

Social support

1

1.35 (1.07-1.70)

1.34 (1.01-1.78)

0.017

Marital status

0.623

 Unmarried

1

1

1

 Married

0.90 (0.48-1.67)

0.70 (0.34-1.44)

Duration of smoking

0.025

 ≥21 years

1

1

1

 11-21 years

1.94 (1.07-3.50)

2.48 (1.18-5.21)

 6-10 years

1.46 (0.71-2.99)

1.35 (0.54-3.40)

 5 years or less

0.96 (0.41-2.27)

2.93 (1.14-7.52)

Previous attempts to quit

0.007

 Never

1

1

 Once or twice

1

1.33 (0.81-2.20)

1.76 (0.95-3.24)

 Three times or more

2.27 (1.26-4.01)

3.16 (1.60-6.26)

Number of smokers at home

0.210

 Two or more

1

1

1

 One

1.41 (0.84-2.38)

1.30 (0.67-2.53)

 None

1.41 (0.80-2.46)

2.06 (1.05-4.04)

Knowledge about smoking hazards

1

1.75 (1.29-2.35)

1.57 (1.10-2.21)

<0.001

Positive Attitudes towards smoking prevention and cessation

1

1.44 (1.14-1.82)

1.34 (1.00-1.82)

0.004

Smokes indoors

0.309

 Yes

1

1

 No

1

1.21 (0.76-1.94)

1.52 (0.88-2.65)

Physician advice to quit smoking

0.016

 No

1

1

1

 Yes

1.88 (1.19-2.97)

1.63 (0.93-2.77)