Table:
occupational noise
men
women

%
95% confidence interval
%
95% confidence interval

from
to
from
to

source of noise

machines or modes of transportation
81.4
74.7
86.7
50.5
42.1
58.9

music or people
20.1
15.5
25.6
42.7
35.2
50.6

munitions (guns, cannons) or other
13.0
9.9
16.9
11.7
7.6
17.4

years in noisy environment

less than 5 years
44.6
37.5
51.9
60.8
52.9
68.2

5 years to less than 10 years
17.9
12.3
25.3
16.2
11.9
21.7

10 years or more
37.5
30.9
44.6
22.9
17.7
29.2

Statement: most vulnerable women had worked in noisy environments for less than five years.
Question: how many years have most vulnerable women worked in noisy environments?
Answer: less than 5 years