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 Category1 | Michigan | New Jersey | Total | |||
|---|---|---|---|---|---|---|
| Number | Percent | Number | Percent | Number | Percent | |
| 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> April 25, 2024.
Reference Number: 2015-849
Date Posted: July 2015
Data Formats
Archived Version