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Table 1 Demographic features of study groups

From: Risk factors for ANA positivity in healthy persons

Group Age (yrs) ANA (EU) Female (%) AA (%) Hispanic (%)
HC High ANA (n = 18) 33.8 ± 3.4* 78.4 ± 10.0* 83 22 6
HC Low ANA (n = 16) 43.1 ± 3.7 7.0 ± 0.6 75 25 0
SLE (n = 14) 38.0 ± 4.0 182.4 ± 15.4 93 43 7
P** 0.2 0.001# 0.4 0.4 0.6
  1. *Values represent mean and standard error of the mean. **P-values were calculated by one-way ANOVA or Fisher's exact test. # Mean ANA in SLE was significantly higher than in the High ANA HC group (P <0.05). ANA, antinuclear antibodies; SLE, systemic lupus erythematosus.