| Identifier attribute | Quasi-identifier | Sensitive attributes | |||
| Name | Race | Birth | Sex | Zip code | Disease |
| Alice | Blank | 1965 | M | 02141 | Flu |
| Bob | Blank | 1965 | M | 02142 | Cancer |
| David | Blank | 1966 | M | 02135 | Obesity |
| Helen | Blank | 1966 | M | 02137 | Gastritis |
| Jane | White | 1968 | F | 02139 | HIV |
| Paul | White | 1968 | F | 02138 | Cancer |