Table 1.
Basic characteristics of the Tobbstop study participants based on their assigned group.
| Characteristics | Control group (n=318) | Intervention group (n=284) | P value | Total (n=602) | |||||
| Mean age, years (SD) | 48.8 (11.0) | 42.2 (10.2) | <.001 | 45.7 (11.1) | |||||
| Men (%) | 155 (48.7) | 120 (42.3) | .13 | 275 (45.7) | |||||
| Education, n (%) |
|
|
.001 |
|
|||||
|
|
No studies or primary | 126 (39.6) | 70 (24.7) |
|
196 (32.6) | ||||
|
|
Secondary | 129 (40.6) | 143 (50.5) |
|
272 (45.3) | ||||
|
|
University or higher | 63 (19.8) | 70 (24.7) |
|
133 (22.1) | ||||
| Marital status, n (%) |
|
|
.03 |
|
|||||
|
|
Single | 55 (17.3) | 72 (25.4) |
|
127 (21.1) | ||||
|
|
With a partner | 205 (64.5) | 171 (60.2) |
|
376 (62.5) | ||||
|
|
Widowed | 15 (4.7) | 5 (1.8) |
|
20 (3.3) | ||||
|
|
Divorced | 43 (13.5) | 36 (12.7) |
|
79 (13.1) | ||||
| Body mass indexa (kg/m2), mean (SD) | 27.4 (8.9) | 26.9 (8.5) | .47 | 27.2 (8.7) | |||||
| Mean arterial pressurea (mm/Hg), mean (SD) | 91.4 (10.6) | 60.5 (10.7) | .30 | 91 (10.7) | |||||
| COb-oximetry (ppm), mean (IQRc) | 16.8 (8.00-21.00) | 13.6 (6.00-20.00) | .001 | 15.2 (6.75-20.00) | |||||
| Electronic cigarette users, n (%) | 49 (15.4) | 54 (19) | .29 | 103 (17.1) | |||||
| Cigarettes per day, n (%) |
|
|
.12 |
|
|||||
|
|
0-10 | 60 (18.9) | 73 (25.7) |
|
133 (22.1) | ||||
|
|
11-20 | 183 (57.5) | 154 (54.2) |
|
337 (56.0) | ||||
|
|
21-30 | 60 (18.9) | 38 (13.4) |
|
98 (16.3) | ||||
|
|
31-40 | 12 (3.7) | 15 (5.3) |
|
27 (4.5) | ||||
|
|
>40 | 3 (0.9) | 4 (1.4) |
|
7 (1.2) | ||||
| Fagerström test (dependence), n (%) |
|
|
.02 |
|
|||||
|
|
High | 37 (11.6) | 35 (12.3) |
|
72 (12.0) | ||||
|
|
Moderate | 217 (68.2) | 165 (58.1) |
|
382 (63.5) | ||||
|
|
Low | 64 (20.1) | 84 (29.6) |
|
148 (24.6) | ||||
| Number of previous attempts, mean (IQR) | 1.90 (1.00-3.00) | 2.61 (1.00-3.00) | .08 | 2.24 (1.00-3.00) | |||||
| Maximum number of withdrawal months, mean (SD) | 13.8 (31.1) | 10.4 (20.9) | .12 | 12.2 (26.8) | |||||
| Age of starting smoking (years), mean (SD) | 17.0 (4.1) | 16.7 (3.4) | .33 | 16.8 (3.8) | |||||
| No smokers in the family, n (%) | 154 (48.4) | 111 (39.1) | .03 | 265 (44.0) | |||||
| Use of a pharmacological treatment for tobacco cessation, n (%) | 244 (76.7) | 148 (52.1) | <.001 | 392 (65.1) | |||||
| Pathologies, n (%) |
|
|
|
|
|||||
|
|
Hypertension | 72 (22.6) | 37 (13.0) | .003 | 109 (18.1) | ||||
|
|
Chronic obstructive pulmonary disease | 24 (7.5) | 11 (3.9) | .08 | 35 (5.8) | ||||
|
|
Type 2 diabetes mellitus | 23 (7.2) | 16 (5.6) | .53 | 39 (6.5) | ||||
|
|
Stroke | 3 (0.9) | 5 (1.8) | .49 | 8 (1.3) | ||||
|
|
Neoplasia | 5 (1.6) | 6 (2.11) | .85 | 11 (1.8) | ||||
|
|
Dyslipidemia | 83 (26.1) | 55 (19.4) | .06 | 138 (22.9) | ||||
|
|
Coronary heart disease |
16 (5) | 6 (2.1) | .09 | 22 (3.6) | ||||
| 3-month withdrawal, n (%) | 101 (31.8) | 85 (29.9) | .69 | 186 (30.9) | |||||
| 12-month withdrawal, n (%) | 60 (18.9) | 47 (16.5) | .53 | 107 (17.8) | |||||
aAt baseline.
bCO: carbon monoxide.
cIQR: interquartile range.