Table 2

factors associated with difficulty and intention to quit smoking

N

Difficulty

Test

Intention

Test

All

1234

1075 (87.1)

883 (71.6)

Gender

Women

591

530 (89.7)

6.64 **

429 (72.6)

0.59 ^NS

Men

643

545 (84.8)

454 (70.6)

Age group

[35-44]

416

360 (86.5)

3.37 ^NS

314 (75.5)

20.9 ***

[45-54]

397

355 (89.4)

300 (75.6)

[55-64]

310

267 (86.1)

210 (67.7)

[65+]

111

93 (83.8)

62 (55.9)

Leisure-time physical activity

No

680

608 (89.4)

7.12 **

488 (71.8)

0.03 ^NS

Yes

554

487 (87.9)

395 (71.3)

Alcohol drinker

No

276

247 (89.5)

1.79 ^NS

213 (77.2)

5.51 *

Yes

958

828 (86.4)

670 (69.9)

Alcohol consumption (%)

None

276

247 (89.5)

2.55 ^NS

213 (77.2)

6.34 ^NS

1-6/week

374

325 (86.9)

266 (71.1)

7-13/week

238

204 (85.7)

165 (69.3)

14-34/week

297

255 (85.9)

207 (69.7)

35+/week

49

44 (89.8)

32 (65.3)

Personal history of lung disease

No

1127

971 (86.2)

10.6 ***

794 (70.5)

7.77 **

Yes

107

104 (97.2)

89 (83.2)

Family history of lung disease

No

1128

974 (86.3)

6.89 **

797 (70.7)

5.22 *

Yes

106

101 (95.3)

86 (81.1)

Non-cigarette smokers

No

1179

1038 (88.0)

20.2 ***

858 (72.8)

19.3 ***

Yes

55

37 (67.3)

25 (45.5)

Nicotine dependence ^a

Low (0-1)

437

308 (70.5)

168.7 ***

271 (62.0)

31.2 ***

Medium (2-4)

629

600 (95.4)

478 (76.0)

High (5-6)

168

167 (99.4)

134 (79.8)

Number of quitting attempts

None

412

326 (79.1)

35.2 ***

238 (57.8)

65.3 ***

1-5

621

565 (91.0)

472 (76.0)

6+

201

184 (91.5)

173 (86.1)

Results are expressed as number of subjects and (row percentage). Bivariate statistical analysis by chi-square: ^NS, not significant; *, p < 0.05; **, p < 0.01; ***, p < 0.001. ^a assessed by the heaviness of smoking index.

Marques-Vidal et al. BMC Public Health 2011 11:227   doi:10.1186/1471-2458-11-227