in rheumatoid arthritis ( n = 22 ) the geometric mean ferritin level was 528 micrograms/l ( range 56-3 100 micrograms/l ) , in other inflammatory arthritides ( n = 12 ) 339 micrograms/l ( 105-2 835 micrograms/l ) ( p greater than 0.5 ) , in calcium pyrophosphate arthropathy ( n = 14 ) 507 micrograms/l ( 180-4 230 micrograms/l ) ( p greater than 0.5 ) and in non-inflammatory osteoarthritis ( n = 9 ) 167 micrograms/l ( 14-725 micrograms/l ) ( p less than 0.05 ) .
C0003873
rheumatoid arthritis
C0003864
inflammatory arthritides