Table 1. Follow-up distributions for cases and non-cases (years).
| Group | Minimum | 25th centile | Median | 75th centile | Maximum |
|---|---|---|---|---|---|
| Case | 0.02 | 0.18 | 0.46 | 3.98 | 8.04 |
| Non-case | 0.01 | 0.62 | 4.94 | 6.80 | 8.11 |
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.