Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

Silicosis: Number of silicosis cases by small opacity profusion category on the International Labour Organization (ILO) report—Michigan and New Jersey, 1993–2011

Small Opacity Profusion Category1MichiganNew JerseyTotal
NumberPercentNumberPercentNumberPercent
Category 0   13     2.0    –       –   13     1.5
Category 1 292   45.3 110   50.2 402   46.5
Category 2 234   36.3   88   40.2 322   37.3
Category 3 106   16.4   21     9.6 127   14.7
TOTAL 645 100.0 219 100.0 864 100.0

– indicates no cases reported.
1 Profusion of small opacities are classified into 4-point major categories: Category 0 (0/-, 0/0, 0/1), Category 1 (1/0, 1/1, 1/2), Category 2 (2/1, 2/2, 2/3), and Category 3 (3/2, 3/3, 3/+).

Note:

The total number of cases by state and overall represent those cases with an available ILO report with no missing information.

Thirty of the 903 confirmed silicosis cases did not have an available report and nine cases from New Jersey had missing information on the available ILO report.

Percentages are based on available ILO reports with small opacity profusion category information and may not sum up 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). 2015-849 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/849> February 18, 2018.

Reference Number: 2015-849

Date Posted: July 2015

Archived Version

TOP