Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Compliance during repeated screening
| Screening group | Control group | |||
| Screening round | Subjects alive | Subjects invited for screening | Subjects screened (%) | Subjects alive |
| 1 | 30 762 | 30 762 | 20 672 (67) | 30 966 |
| 2 | 30 100 | 20 113 | 18 781 (93) | 30 022 |
| 3 | 28 987 | 18 236 | 17 279 (94) | 28 882 |
| 4 | 27 742 | 16 746 | 15 845 (94) | 27 557 |
| 5 | 26 347 | 15 279 | 14 203 (92) | 26 227 |
| 6 | 24 798 | 13 602 | 12 533 (92) | 24 659 |
| 7 | 23 109 | 11 902 | 11 058 (93) | 23 028 |
