Table 1 Baseline characteristics of the patients (N = 557).

From: Brief intervention to promote smoking cessation and improve glycemic control in smokers with type 2 diabetes: a randomized controlled trial

 

Intervention

Control

n = 283

n = 274

Demographic

 Age, mean ± SD, years

56.0 ± 11.3

55.5 ± 11.5

 Male sex, n (%)

247 (87.3)

245 (89.4)

Level of education, n (%)

 Primary or below

84 (29.7)

85 (31.0)

 Secondary

170 (60.1)

156 (56.9)

 Post-secondary

24 (8.5)

27 (9.9)

 Missing

5 (1.7)

6 (2.2)

Employment status, n (%)

 Housewife

5 (1.8)

10 (3.6)

 Full time student

1 (0.4)

1 (0.4)

 Retired

83 (29.3)

74 (27.0)

 Unemployed

21 (7.4)

23 (8.4)

 Employed

173 (61.1)

166 (60.6)

Smoking history

 No. of years of regular smoking (≥1 cigarette per day), mean ± SD

38.1 ± 12.8

37.8 ± 12.9

 Daily cigarette consumption, mean ± SD

14.2 ± 9.0

13.5 ± 9.2

Fagerstrom test score for nicotine dependency, n (%)

 ≤3 (mild)

142 (50.2)

141 (51.5)

 4–5 (moderate)

85 (30.0)

93 (33.9)

 ≥6 (severe)

50 (17.7)

40 (14.6)

 Missing

6 (2.1)

0 (0)

Past quit attempt (quit for at least 24 hours), n (%)

 Yes

176 (62.2)

191 (69.7)

 No

107 (37.8)

83 (30.3)

Stage of readiness to quit, n (%)

 Pre-contemplation

215 (76.0)

200 (73.0)

 Contemplation

46 (16.3)

53 (19.3)

 Preparation

22 (7.8)

21 (7.7)

 Self-efficacy scorea Mean ± SD

33.0 ± 8.5

33.3 ± 8.0

DM history

 No. of years of being diagnosed with DM, mean ± SD

10.6 ± 8.3

10.2 ± 8.2

DM complicationb n (%)

 Yes

159 (56.2)

170 (62.3)

 No

118 (41.7)

103 (37.7)

 Missing

6 (2.1)

0 (0)

Health

 Hospitalized in the past 6 months, n (%)

51 (18.5)

46 (16.9)

 Doctor consultation in the past 30 days, n (%)

48 (17.6)

67 (24.7)

Self-rated health, n (%)

 Very Bad

3 (1.1)

1 (0.4)

 Bad

47 (16.6)

53 (19.3)

 Good

209 (73.9)

199 (72.3)

 Very good

1 (0.4)

2 (0.7)

 Missing

23 (8.0)

19 (7.3)

Other co-morbidities, n (%)

 Hypertension

139 (49.1)

148 (54.0)

 Cardiovascular diseases

33 (11.7)

32 (11.7)

 Respiratory diseases

12 (4.2)

14 (5.1)

 Digestive diseases

13 (4.6)

14 (5.1)

Blood Profile, mean ± SD

 HbA1c level (%)

8.1 (1.7)

8.2 (1.7)

 Low-density lipoprotein (LDL) (mmol/L)

2.6 ± 0.8

2.6 ± 0.8

 High-density lipoproteins (HDL) (mmol/L)

1.1 ± 0.4

1.1 ± 0.4

  1. Note. aScore ranged from 12–60, the higher the score, the more self-efficacy the person; bDM complications refer to cardiovascular disease, stroke, neuropathy, eye complications, nephropathy (kidney disease), and other DM related complications.