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Table 3 25OHD by race/ethnicity

From: Disease-specific definitions of vitamin D deficiency need to be established in autoimmune and non-autoimmune chronic diseases: a retrospective comparison of three chronic diseases

  African-American Hispanic Other P-value
SLE, n (column %) 46 39 34  
   <20 ng/ml 27 (59) 26 (67) 15 (44)  
   ≥20 and <30 ng/ml 16 (35) 9 (23) 11 (32) 0.12
   ≥30 ng/ml 3 (7) 4 (10) 8 (24)  
   Median 25OHD (IQR), ng/ml 17.7 (10.0, 24.2) 17.1 (11.3, 23.4) 21.4 (12.0, 28.4) 0.34
RA, n (column %) 32 42 20  
   <20 ng/ml 15 (47) 21 (50) 6 (30)  
   ≥20 and <30 ng/ml 8 (25) 13 (31) 8 (40) 0.54
   ≥30 ng/ml 9 (28) 8 (19) 6 (30)  
   Median 25OHD (IQR), ng/ml 21.5 (14.8, 31.1) 24.7 (20.1, 32.4) 25.3 (17.7, 32.8) 0.28
T2DM, n (column %) 1252 1176 1046  
   <20 ng/ml 837 (67) 697 (59) 620 (59)  
   ≥20 and <30 ng/ml 249 (20) 308 (26) 280 (27) <0.0001
   ≥30 ng/ml 166 (13) 171 (15) 146 (14)  
   Median 25OHD (IQR), ng/ml 15.0 (9.7, 23.1) 17.8 (12.2, 24.7) 17.9 (12.1, 24.3) 0.0001
  1. SLE, systemic lupus erythematosus; RA, rheumatoid arthritis; T2DM, type 2 diabetes mellitus; 25OHD, 25hydroxyvitamin D; IQR, inter-quartile range.