Table 5 Predictors of smoking and dropouts at 12 months

 18–29

1

1

 30–39

1.46 (0.38, 5.61)

0.584

1.58 (0.43, 5.83)

0.489

 40–49

1.06 (0.25, 4.55)

0.934

0.66 (0.16, 2.79)

0.576

 ≥50

1.71 (0.29, 10.2)

0.554

1.85 (0.32, 10.56)

0.488

 Never Married

1

1

 Ever Married

0.50 (0.12, 2.08)

0.337

0.60 (0.15, 2.38)

0.465

 Qatar

1

1

 Egypt

1.60 (0.49, 5.22)

0.432

0.58 (0.18, 1.84)

0.358

 Other

1.60 (0.51, 5.03)

0.425

1.21 (0.41, 3.58)

0.734

Tried quitting before

0.77 (0.30, 1.99)

0.593

1.27 (0.49, 3.29)

0.619

Years of smoking

2.07 (1.25, 3.45)

0.005*

1.89 (1.17, 3.06)

0.009*

Cigarettes per day

1.04 (1.00, 1.09)

0.027*

1.01 (0.98, 1.05)

0.481

Study group

0.58 (0.24, 1.38)

0.218

0.70 (0.30, 1.64)

0.410