Fc receptor-like 1, 3, and 6 variants are associated with rheumatoid arthritis risk in the Chinese Han population

Genes and Environment

Table 1 Characteristics of cases and controls

Variables	Cases (n = 506)	Controls (n = 509)	p
Age, years (mean ± SD)	59.80 ± 9.08	59.80 ± 10.63	0.038^*
≤ 54	262 (51.78%)	260 (51.08%)
> 54	244 (48.22%)	249 (48.92%)
Gender			0.958
Male	135 (26.68%)	134 (26.33%)
Female	371 (73.32%)	375 (73.67%)
Clinical parameters
CRP (mg/L)	31.05 ± 40.25
RF (KIU/L)	164.09 ± 147.21
ESR (mm/h)	44.28 ± 30.86
CCP (RU/ml)	75.11 ± 60.78

SD: standard deviation; RA: rheumatoid arthritis; SD: standard deviation; CRP: C-reaction protein; RF: rheumatoid factor; ESR: erythrocyte sedimentation rate; CCP: anti-cyclic citrullinated peptide
p values were calculated from χ² test
*p < 0.05 indicates statistical significance

ISSN: 1880-7062