Table 4.
Sensitivity | Linkage variable |
86.5% | Social security number (overall) |
87.4% | First+last name+date of birth |
93.1% | First name |
94.5% | Social security number (when present) |
95.2% | Last name |
96.7%–97.2% | Hash consisting of first two letters of first and last names+date of birth |
99.7% | Date of birth |