Table 1.
Use of program components by the overall study sample and by study group.
| Program components | All (N=1418) | MCT (n=712) | MCT+ (n=706) | P value | |
| Questions answered, mean (SDa)b,c | 6.6 (3.5) | 6.5 (3.6) | 6.8 (3.5) | .22 | |
| Percentage of media objects viewed or of media objects sent, mean (SD)b,c | 20.8 (31.5) | 17.9 (32.6) | 23.6 (30.0) | <.001 | |
| Answer to quizzesd,e, n (%) | |||||
| Quiz costs (week 1) | 975 (68.76) | 481 (67.6) | 494 (70.0) | .33 | |
| Quiz health (week 5) | 898 (63.32) | 438 (61.5) | 460 (65.2) | .16 | |
| Quiz norms (week 9) | 863 (60.86) | 429 (60.3) | 434 (61.5) | .64 | |
| Answer to HAPAfstage of changed,e, n (%) | |||||
| Stage 1 (week 2) | 1206 (85.04) | 598 (83.9) | 608 (86.1) | .26 | |
| Stage 2 (week 6) | 975 (68.76) | 485 (68.7) | 490 (68.8) | .96 | |
| Stage 3 (week 10) | 609 (42.94) | 295 (41.4) | 314 (44.5) | .25 | |
| Answer to smoking-related questionsd,e, n (%) | |||||
| CPDg or CPWh or coping strategy (week 3) | 992 (69.95) | 490 (68.8) | 502 (71.1) | .35 | |
| CPD or CPW or coping strategy (week 7) | 876 (61.77) | 444 (62.4) | 432 (61.2) | .65 | |
| CPD or CPW or coping strategy (week 11) | 749 (52.82) | 361 (50.7) | 388 (55.0) | .11 | |
| Answer to contest, n (%)d,e | |||||
| Motivational or quit contest (week 4) | 626 (44.14) | 303 (42.6) | 323 (45.8) | .23 | |
| Motivational or quit contest (week 8) | 353 (24.89) | 175 (24.6) | 178 (25.2) | .78 | |
| Setting of a quit dated,e | 156/475 (32.8) | 79/239 (33.1) | 77/236 (32.6) | .92 | |
aSD: standard deviation.
bt test.
cDegrees of freedom=1416.
dChi-square test.
eDegrees of freedom=1.
fHAPA: health action process approach.
gCPD: cigarettes smoked per day.
hCPW: cigarettes smoked per week.