Table:
characteristic
%
95% confidence interval
odds ratio
95% confidence interval

from
to
from
to

sex

male
2.7
2.2
3.2
1.00
..
..

female
6.2
5.6
6.9
2.38
1.88
3.02

age group

12 to 17
1.7
0.9
2.5
0.60
0.30
1.20

18 to 34
8.2
7.1
9.3
3.09
2.28
4.19

35 to 44
5.2
3.9
6.5
1.91
1.25
2.92

45 or older
2.7
2.3
3.2
1.00
..
..

education

secondary diploma or equivalent or less
3.9
3.2
4.5
1.12
0.79
1.58

some postsecondary
5.9
5.1
6.7
1.69
1.22
2.34

university certificate, diploma or degree
3.6
2.8
4.4
1.00
..
..

not applicable/don't know/refusal/not stated
f
f
f
f
f
f

household income

$39,999 or less
3.3
2.5
4.0
..
..
..

$40,000 to $69,999
3.9
3.1
4.7
..
..
..

$70,000 to $99,999
4.9
3.8
6.0
..
..
..

$100,000 to $149,999
4.7
3.6
5.7
..
..
..

$150,000 or more
6.7
5.2
8.2
..
..
..

region

atlantic
4.8
3.7
5.9
1.42
0.93
2.17

quebec
4.5
3.6
5.5
1.33
0.88
2.00

ontario
3.5
2.8
4.1
1.00
..
..

west
5.7
4.8
6.5
1.67
1.15
2.42

race

caucasian
5.2
4.7
5.7
2.43
1.75
3.37

other
2.2
1.5
2.9
1.00
..
..

not applicable/don't know/refusal/not stated
3.4
1.5
5.3
..
..
..

Statement: the prevalence of indoor tanning was 3.9% among people with "secondary graduation or less".
Question: what was the prevalence of indoor tanning among people with "secondary graduation or less"?
Answer: [3.9]