2011 | 2012 | 2013 | 2014 | Before–after comparison aOR* (95% CI) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
N | Per cent | N | Per cent | N | Per cent | N | Per cent | |||
Usual source of cigarettes in past 30 days | 2014 vs 2012 | |||||||||
Bought from shop | 458 | 18 | 355 | 14 | 244 | 11 | 226 | 11 | 0.74 | (0.57 to 0.97) |
From friends/peers | 796 | 32 | 796 | 32 | 777 | 36 | 734 | 35 | 1.09 | (1.01 to 1.21) |
From parents/caregivers | 319 | 13 | 320 | 13 | 283 | 13 | 257 | 12 | 0.98 | (0.77 to 1.24) |
Other | 566 | 22 | 567 | 22 | 525 | 25 | 489 | 23 | 0.99 | (0.82 to 1.21) |
Non-response | 382 | 15 | 483 | 19 | 312 | 15 | 404 | 19 | ||
Tried to buy from shop in past 30 days | 2013 vs 2012 | |||||||||
Yes | 908 | 36 | 728 | 30 | 566 | 26 | 0.77 | (0.63 to 0.91) | ||
No | 1546 | 61 | 1595 | 65 | 1508 | 71 | 1.32 | (1.1 to 1.58) | ||
Non-response | 66 | 3 | 129 | 5 | 64 | 3 |
ORs are bolded where 95% CIs do not overlap the null.
*aORs controlled for age, sex, ethnicity, SES, friend and parent smoking status, smoking in home.
aOR, adjusted OR; SES, socioeconomic status.