Table 2.
Estimated sample sizes and smoking prevalence and incidence by age and year group
|
Age group/Grade |
% pupils in each class
1
|
N pupils per school |
Tot no pupils 4 schools |
Estimated response rates
2
|
Prevalence regular smoking
3
|
Incidence regular smoking |
Prevalence ever smoked |
Incidence ever smoked |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|
| % | N | % | N | % | N | ||||||
| School Surveys 2013-14 | |||||||||||
| 13/S2 |
100% |
188 |
752 |
85% |
640 |
|
|||||
| 15/S4 |
100% |
188 |
752 |
85% |
640 |
||||||
| Total all schools |
376 |
1504 |
85% |
1280 |
|||||||
| Total per school |
|
376 |
85% |
320 |
|||||||
| School Surveys 2015-17 | |||||||||||
| 12/S1 |
18.1% |
217 |
866 |
85% |
736 |
1.0% |
7 |
1.0% |
4% |
26 |
4% |
| 13/S2 |
18.3% |
220 |
878 |
85% |
747 |
4.8% |
35 |
3.8% |
23% |
168 |
19% |
| 14/S3 |
18.8% |
225 |
902 |
85% |
767 |
11.0% |
84 |
6.3% |
35% |
268 |
13% |
| 15/S4 |
18.8% |
225 |
901 |
85% |
766 |
16.5% |
126 |
5.5% |
44% |
333 |
9% |
| 16/S5 |
15.7% |
189 |
754 |
85% |
641 |
20.0% |
128 |
3.5% |
47% |
298 |
3% |
| 17/S6 |
10.2% |
123 |
491 |
85% |
417 |
24.0% |
100 |
4.0% |
47% |
194 |
0% |
| Total all schools |
1198 |
4793 |
|
4074 |
|
482 |
|
|
1287 |
|
|
| Per School | 1198 | 1018 | 120 | 322 | |||||||
1. Distribution of pupils over different age groups is based on most recent School statistics released by Scottish Government.
2. Response rates are based on HBSC survey experience.
3. Regular smoking defined as weekly smoking. Percentage 13 and 15-year old based on SALSUS, Percentages 12, 14, 16 and 17-year olds based on plotting, making use of HBSC smoking data for 11-year olds, SALSUS 13 and 15-year olds and 17-year olds’ data from the Scottish health survey (16-24-year olds: Male 24%; Female 29%) [18-20].