| BDI | Beck Depression Inventory |
| BMI | Body Mass Index |
| IQR | reported as median |
| PSQI | Pittsburgh Sleep Quality Index |
| QoL | Quality of Life |
| RA | Rheumatoid arthritis |
| WHOQOL-BREF | World Health Organization Quality of Life Instrument, Short Form |
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.