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.
Study population and person-year followed according sex and age groupsa.
| Sex | Number of persons (No. of person-year followed) | ||
| Age group | Male | Female | Overall |
| 65–74 yrs | 2897 (9016) | 3308 (10573) | 6205 (19589) |
| 75–84 yrs | 1578 (4533) | 2281 (6887) | 3859 (11420) |
| 85 yrs or more | 417 (1001) | 759 (1895) | 1176 (2896) |
| Overall age groups | 4892 (14550) | 6348 (19355) | 11240 (33905) |
aAge was considered when study started on January 1, 2002.
