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4: Multiple linear regression model showing additive effects relative to the reference condition for each of the risk categories listed

 

Variable
Reference condition
Added risk
Effect
Standard error
Confidence interval
P
Intercept
86.8
2.6
81.7 to 91.9
<0.001
Sex
Female
Male
-5.4
1.3
-7.9 to -2.9
<0.001
Age (years)
10-19
20-29
-3.5
2.0
-7.4 to -0.4
0.083
30-39
-8.4
2.1
-12.5 to -4.3
<0.001
40-49
-12.9
2.2
-17.2 to -8.6
<0.001
50-59
-24.1
2.5
-29.0 to -19.2
<0.001
Personal stereo use
Negligible
Moderate
-10.7
1.6
-13.7 to -7.6
<0.001
Heavy
-12.3
2.0
-16.2 to -8.4
<0.001
Industrial noise exposure
None
Any
-7.6
1.7
-10.8 to -4.3
<0.001

©MJA 1998

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