Table 1.
Description of Sample
Characteristic | Level | Total Persons |
Persons with one knee |
Persons with two knees |
Total knees |
---|---|---|---|---|---|
Age, end of follow- up period |
<65 | 664 (35%) | 417 (35%) | 247 (35%) | 911 (35%) |
65+ | 1251 (65%) | 783 (65%) | 468 (65%) | 1719 (65%) | |
Sex | Male | 786 (41%) | 546 (46%) | 240 (34%) | 1026 (39%) |
Female | 1129 (59%) | 654 (55%) | 475 (66%) | 1604 (61%) | |
Race | White | 1412 (74%) | 951 (79%) | 461 (64%) | 1873 (71%) |
Non-White | 502 (26%) | 248 (21%) | 254 (36%) | 756 (29%) | |
Education | High school or less |
364 (19%) | 197 (17%) | 167 (23%) | 531 (20%) |
Some college or more |
1538 (81%) | 994 (83%) | 544 (77%) | 2082 (80%) | |
Baseline KL grade | 2 | 970 (51%) | -- | -- | 1488 (57%) |
3 | 676 (35%) | -- | -- | 871 (33%) | |
4 | 269 (14%) | -- | -- | 271 (10%) |
Note: one participant is missing information on sex. 13 participants are missing information on education.