From: Differentially private release of medical microdata: an efficient and practical approach for preserving informative attribute values
Age group
Original
The proposed method
k-anonymization
10
3.0
1.0
15.0
20
1.4
30
7.7
2.8
40
1.7
2.4
11.7
50
2.7
3.6
60
3.5
3.2
70
4.7
21.1
80
5.6
6.1
90
8.0
8.5