Contents: Screened Feature Coding Index
Primary Key: CD_SCREEN
Columns:
| Name | Type | Size | Contents |
| CD_SCREEN | NUMBER | 1 | Code |
| TEXT | VARCHAR | 100 | Text Description |
Codes:
| CD_SCREEN | TEXT |
| 0 | not screened |
| 1 | sample screened |
| 2 | completely screened |
| 3 | partially screened |