Table 2.
Distribution of selected characteristics at baseline (N=4335) by study arm.
| Selected characteristicsa | Total, n (%) | Text message arm, n (%) | Email arm, n (%) | P valueb | |
| Sex (N=4335) | 2188 (50.47) | 2147 (49.53) | .41 | ||
|
|
Male | 1214 (28.00) | 626 (28.00) | 588 (27.38) |
|
|
|
Female | 3121 (71.99) | 1562 (72.00) | 1559 (72.61) |
|
| Education (years; N=4322)c | 2180 (50.44) | 2142 (49.56) | .56 | ||
|
|
0-9 | 305 (7.1d) | 161 (7.38) | 144 (6.7) |
|
|
|
0-12 | 1446 (33.46) | 722 (33.11) | 724 (33.8) |
|
|
|
13-16 | 1707 (39.50) | 848 (38.89) | 859 (40.1) |
|
|
|
>16 | 864 (20.0) | 449 (20.59) | 415 (19.4) |
|
| Occupation (N=4334) | 2188 (50.49) | 2146 (49.95) | .70 | ||
|
|
Employed, full-time | 2423 (55.91d) | 1221 (55.91) | 1202 (56.01) |
|
|
|
Employed, part-time | 543 (12.52) | 263 (12.02) | 280 (13.0) |
|
|
|
Retired | 32 (0.73) | 13 (<1) | 19 (<1) |
|
|
|
Home keeper | 69 (1.59) | 35 (2) | 34 (2) |
|
|
|
Student | 490 (11.30) | 265 (12.1) | 225 (10.5) |
|
|
|
Disability | 266 (6.1) | 133 (6.1) | 133 (6.2) |
|
|
|
Rehabilitation | 267 (6.2) | 138 (6.3) | 129 (6.0) |
|
|
|
Unemployed | 244 (5.6) | 120 (5.5) | 124 (5.8) |
|
| Cessation attempts (N=4335) | 2188 (50.47) | 2147 (49.53) | .47 | ||
|
|
Never | 651 (15.0) | 324 (14.80) | 327 (15.2) |
|
|
|
Once | 728 (16.8) | 370 (16.91) | 358 (16.7) |
|
|
|
Twice | 992 (22.9) | 505 (23.08) | 487 (22.7) |
|
|
|
3 times | 646 (14.9) | 309 (14.1) | 337 (15.7) |
|
|
|
>3 times | 1318 (30.40) | 680 (31.1) | 638 (29.7) |
|
| Motivation score (N=4319)c | 2181(50.50) | 2138(49.50) | .14 | ||
|
|
1 (very weak) | 74 (2) | 46 (2) | 28 (1) |
|
|
|
2 (pretty weak) | 483 (11.2) | 235 (10.8) | 248 (11.6) |
|
|
|
3 (pretty strong) | 2691 (62.31) | 1374 (63.00) | 1317 (61.60) |
|
|
|
4 (very strong) | 1071 (24.80) | 526 (24.1) | 545 (25.5) |
|
| Fagerstrom Test for Nicotine Dependence score (N=4237)c | 2138 (50.47) | 2098 (49.53) | .72 | ||
|
|
0-3 Low | 1245 (29.39) | 622 (29.1) | 623 (29.7) |
|
|
|
4-6 Medium | 2725 (64.33) | 1386 (64.83) | 1339 (63.82) |
|
|
|
7-10 High | 266 (6.3) | 130 (6.1) | 136 (6.5) |
|
aGiven as numbers (%).
bChi-square statistics; P value for difference between the 2 arms according to sex, education, occupation, motivation score and Fagerstrom Test for Nicotine Dependence score.
cSome numbers vary owing to missing values.
dSome percentages add up to more than 100 owing to rounding.