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.
Descriptive data of the cohort (25,725 observations).
| N | (%) | |
|---|---|---|
| Inclusion year | ||
| 1992 | 2,139 | 8 |
| 1993 | 6,356 | 25 |
| 1994 | 5,793 | 23 |
| 1995 | 6,157 | 24 |
| 1996 | 5,280 | 21 |
| Sex (men) | 12,431 | 48 |
|
| ||
| Mean (SD) | 5th to 95th percentile | |
|
| ||
| Age at inclusion | 46.0 (10.4) | 30–60 |
| Follow-up time | 14.6 (3.6) | 5–18 |
| Number of changes of address from study inclusion to 2010 | 1.75 (2.34) | 0–7 |
