Table 1.
Socio-demographic and smoking characteristics of SF28: iOS and Android users
| Characteristics | All users n = 1368 |
iOS users n = 1049 |
Android users n = 319 |
p value |
|---|---|---|---|---|
| Age (in years), mean (SD) | 33.2 (9.6) | 33 (9.4) | 33.7 (10.2) | p = 0.257 |
| Weekly spend on cigarettes (in £s), mean (SD) | 35.9 (24.1) | 36.1 (24.1) | 35.2 (24.1) | p = 0.559 |
| Cigarettes smoked per day, mean (SD) | 16.5 (7.8) | 16.5 (7.5) | 16.4 (8.7) | p = 0.925 |
| Women, % (n) | 63.9 (858) | 65.8 (679) | 57.7 (179) | p = 0.01 |
| Social grade, % (n) | ||||
| Manual | 31.6 (337) | 30.8 (252) | 34.1 (85) | p = 0.089 |
| Non-manual | 37.2 (397) | 39 (319) | 31.3 (78) | |
| Other | 31.2 (333) | 30.2 (247) | 34.5 (86) | |
| Time since the most recent quit attempt, % (n) | ||||
| No previous quit attempt | 14.8 (176) | 14.5 (132) | 15.5 (44) | p < 0.001 |
| Over a year ago | 28.9 (344) | 25.9 (235) | 38.5 (109) | |
| In the last year | 56.3 (671) | 59.6 (541) | 45.9 (130) | |
| Choice of medication, % (n) | ||||
| No medication | 64.5 (882) | 68.4 (718) | 51.4 (164) | p < 0.001 |
| Nicotine replacement therapy (NRT) | 25.3 (346) | 25.7 (270) | 23.8 (76) | |
| Varenicline | 10.2 (140) | 5.8 (61) | 24.8 (79) | |
| Quit date set, % (n) | ||||
| On the day of registration | 57.5 (748) | 61 (607) | 46.2 (141) | p < 0.001 |
| In future from the day of registration | 42.4 (551) | 38.9 (387) | 53.8 (164) | |
| Before the day of registration | 0.1 (1) | 0.1 (1) | 0 (0) | |
| Reason for using the app, % (n) | ||||
| I plan to make a serious quit attempt | 73.2 (1001) | 74.3 (779) | 69.6 (222) | p = 0.001 |
| I am interested in quitting, but not yet | 13.5 (184) | 14.3 (150) | 10.7 (34) | |
| I am just testing the app | 10.5 (143) | 8.9 (93) | 15.7 (50) | |
| Other | 2.9 (40) | 2.6 (27) | 4.1 (13) | |
Missing data: gender n = 26, social grade n = 301, time since the most recent quit attempt n = 177 and quit date set n = 68