Journals
Publish with us
Publishing partnerships
About us
Blog
Journal of Environmental and Public Health
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Journal of Environmental and Public Health
/
2012
/
Article
/
Tab 1
/
Review Article
Protecting Privacy of Shared Epidemiologic Data without Compromising Analysis Potential
Table 1
Cases in the distributed data matching to ≤3 doses in the source database.
Comparison to
Number of matches in source database (identification risk)
Overall identification risk (
1
)
3 (0.33)
2 (0.5)
1 (1.0)
(a) Using original (nonmasked) doses
All organ doses
2
9
18
0.39
Stomach doses only
3
5
29
0.52
AHS stomach doses
1
3
35
0.58
(b) Using doses rounded to 3 significant digits
All organ doses
0 (1)
a
0 (5)
0 (6)
0 (0.14)
Stomach doses only
0
0
0 (2)
0 (0.03)
AHS stomach doses
0
0
0
0 (0)
a
Numbers in parentheses are the numbers of values that exactly matched some entry in the source database, but in no instance was the matching individual in the source database the subject with the three-digit rounded dose.