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Silicosis: Number of cases by duration of occupational exposure to silica—Michigan and New Jersey, 1993–2010

Years of Employment1MichiganNew JerseyTotal
NumberPercentNumberPercentNumberPercent
< 10 years   46     7.0   22     9.6   68     7.7
10–19 years   68   10.4   40   17.4 108   12.2
20–29 years 181   27.7   40   17.4 221   25.0
30–39 years 223   34.1   37   16.1 260   29.4
≥40 years   82   12.5   25   10.9 107   12.1
Unknown number of years   54     8.3   66   28.7 120   13.6
TOTAL 654 100.0 230 100.0 884 100.0

1 Years of employment are within jobs with potential exposure to dust containing silica.

Note:

Percentages may not sum to 100% due to rounding.

See Appendix for information about data sources and methods.

Source:

Surveillance data as of January 2014, reported by K Rosenman, MJ Reilly, and M Yoder (Michigan); M Lumia and K Worthington (New Jersey).

Reference Number: 2014T03-13a

Date Posted: November 2014

Archived Versions

 
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