hearing loss prevention hearing loss prevention annual statistics--2006 author: christine harrison,...

Hearing Loss Prevention

Hearing Loss PreventionHearing Loss PreventionAnnual Statistics--2006Annual Statistics--2006Author: Christine Harrison, B.A., M.Sc., Aud(C), R.A.

Occupational AudiologistHearing Loss Prevention Section

Provincial Programs and Technical ServicesWorker and Employer Services Division

604 [email protected]


General Statistics 2006

• 149,942 workers tested

• 300 active Industrial Audiometric Technicians

• 86 in-house programs

• 21 mobile contractors

• 23 fixed contractors


Number of Hearing Tests 1978-2006

020000400006000080000

10000012000014000016000018000019

78

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

Year

# of

tes

ts


Summary StatisticsAll Industry

Normal Early Warning Abnormal Total# % # % # % #

FirstTimers 4714 71.8 1448 22.1 399 6.1 6561

Other Baseline 14895 67.3 5587 25.2 1655 7.5 22137

N.Change E.W. Change A. Change Total# % # % # % #

Periodic 105872 87.3 11137 9.2 4235 3.5 121244

Total tested in B.C. 149,942


Early Warning Change 2006Selected Industries

Classification Unit # of Periodics %EWCForestry 5564 11.2

Wood Products Man. 32041 8.1

Heavy Manufacturing 15330 8.6

General Construction 19829 12.2

Heavy Construction 1903 10.8

Road Building 4067 12.3

Oil & Gas (Primary) 1555 12.8


Hearing Protection Use--All Industry

2006

A Muff17%

B Muff2%

A Plug55%

B Plug7%

No H.P.14%

Combo.5%

1981

A Muff29%

B Muff7%

A Plug27%

B Plug1%

No H.P.34%Combo.

2%


Hearing Protection Use--Wood Products Manufacturing

1981

A Muff37%

B Muff7%

A Plug30% B Plug

1%

No H.P.25%

2006

A Muff24%

B Muff2%

A Plug56%

No H.P.7%

Combo.3%

B Plug8%


Hearing Protection Use--Forestry

1981

A Muff38%

B Muff6%

A Plug22%

B Plug1%

No H.P.33%

2006

A Muff35%

B Muff1%

A Plug43%

B Plug2%

No H.P.13%

Combo.6%


Hearing Protection Use--Manufacturing

1981

A Muff24%

B Muff5%

A Plug29%

B Plug2%

No H.P.40%

2006

A Muff10%

B Muff1%

A Plug64%

B Plug8%

Combo.3%

No H.P.14%


Hearing Protection Use--Construction

1981

A Muff15%

B Muff8%

A Plug24%

B Plug3%

No H.P.50%

2006

A Plug69%

B Plug4%

B Muff1%

A Muff6%

Combo.4%

No H.P.16%


Hearing Protection Non-use--1981 vs. 2006

25

33

39

48

34

7

13 1416

14

0

10

20

30

40

50

60

Wood Prod Log Manuf. Constr. All

1981

2006

% non-use

Type of Industry


No Hearing Protection—by Age

30

21

29

14

37

13

43

15

34

14

0

5

10

15

20

25

30

35

40

45

1981 2006

<20 yrs.

21-35 yrs.

36-50 yrs.

51+ yrs.

All BC

% non-use


Hearing Protection Non-use--Age <20 yrs.

21

38

31

40

30

34

10

13

17

24

21

14

0

5

10

15

20

25

30

35

40

45

Wood Prod. Log Manuf. Constr. All <20 BC Ind.

1981

2006

%non-use

Type of Industry


Abnormal Hearing—all workers

3 3 32

5 54

3

17

1110

8

44

34

24

10

0

5

10

15

20

25

30

35

40

45

<20 21-35 36-50 51-65

1980

1991

2006

Expected

% Abnormal

Age in years


Hearing Handicap

0

5

10

15

20

25

30

35

-20 21-35 36-50 50+

Age Group

%w

ith

Hearin

g H

an

dic

ap

19942006Non-exposed


Fallers Average Hearing Loss 1981 vs. 2006

0

10

20

30

40

50

60

0.5 1 2 3 4 6 8

dB HL

1981

2006

Frequency in kHz


Sawmill Workers Average Hearing Loss 1981 vs. 2006

0

10

20

30

40

50

60

0.5 1 2 3 4 6 8

dB HL

1981

2006

Frequency in kHz


0

10

20

30

40

50

60

0.5 1 2 3 4 6 8

dB HL

1981

2006

Truck Drivers Average Hearing Loss 1981 vs. 2006

Frequency in kHz


Welders Average Hearing Loss 1981 vs. 2006

0

10

20

30

40

50

60

0.5 1 2 3 4 6 8

dB HL

1981

2006

Frequency in kHz


0

500

1000

1500

2000

2500

3000

0

2

4

6

8

10

12

14

16

18

Number Total Cost ($Mill.)# Million $

New Noise Induced Hearing Loss Claims


Claims Costs (Awards)

Year # Total Average (million$) $ per claim

1977 566 2.9 52601982 247 1.1 45651987 481 3.6 75901992 558 3.3 59961997 562 3.3 58722006 613 1.7 *2726

* multiply by .308 to convert to 1977 $s = $ 840.00/ claim

hearing loss prevention hearing loss prevention annual statistics--2006 author: christine harrison,...

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