Silicosis: Number of silicosis cases by small opacity profusion category on the International Labour Organization (ILO) report—Michigan and New Jersey, 1993–2010
| Small Opacity Profusion Category1 | Michigan | New Jersey | Total | |||
|---|---|---|---|---|---|---|
| Number | Percent | Number | Percent | Number | Percent | |
| Category 0 | 14 | 2.2 | – | – | 14 | 1.6 |
| Category 1 | 287 | 45.2 | 105 | 47.5 | 392 | 45.8 |
| Category 2 | 230 | 36.2 | 87 | 39.4 | 317 | 37.0 |
| Category 3 | 103 | 16.2 | 20 | 9.0 | 123 | 14.4 |
| TOTAL | 634 | 100.0 | 212 | 100.0 | 846 | 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. Twenty-nine of the 884 confirmed silicosis cases did not have an available report and nine cases from New Jersey had missing information on the ILO report.
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).
Citation:
NIOSH 2014. Work-Related Lung Disease Surveillance System (eWoRLD). 2014-838 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/838> April 23, 2024.
Reference Number: 2014-838
Date Posted: November 2014
Data Formats
Latest Version