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.
Characteristics of rheumatoid arthritis (RA) and osteoarthritis (OA) patients donating blood.
| RA patients | OA patients | |
|---|---|---|
| n | 4 | 4 |
| % female | 25% | 100% |
| % male | 75% | 0% |
| Age mean ± SD | 67 ± 10 | 67 ± 3 |
| Age median (IQR) | 71 (65−74) | 68 (66−69) |
| Age range | 52–75 | 63–70 |
SD, standard deviation; IQR, interquartile range.
