NIOSH

Silicosis: Number of cases by duration of occupational exposure to silica—Michigan and New Jersey, 1993–2011

YearsMichiganNew JerseyTotal
NumberPercentNumberPercentNumberPercent
< 10 years   48     7.2   23     9.7   71     7.9
10–19 years   68    10.2   42    17.7 110    12.2
20–29 years 183    27.5   40    16.9 223    24.7
30–39 years 225    33.8   38    16.0 263    29.1
≥ 40 years   82    12.3   26    11.0 108    12.0
Unknown number of years   60     9.0   68    28.7 128    14.2
TOTAL 666 100.0 237 100.0 903 100.0

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 more information.

Source:

Sentinel surveillance data as of January 2015, reported by K Rosenman, MJ Reilly, and M Yoder (Michigan); M Lumia and K Worthington (New Jersey).

Citation:

NIOSH 2015. Work-Related Lung Disease Surveillance System (eWoRLD). 2015-844 U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Respiratory Health Division, Morgantown, WV. Available at: <https://wwwn.cdc.gov/eWorld/Data/844> April 25, 2024.

Reference Number: 2015-844

Date Posted: July 2015

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Page last reviewed: July 30, 2015
Content source: National Institute for Occupational Safety and Health (NIOSH)