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Table 4 Correlations among the studied cases before and after vitamin D administration

From: The influence of vitamin D administration on the clinical presentation, body mass index, and osteoprotegerin (OPG) level in a sample of Egyptian children with familial Mediterranean fever

   Before After Change
Variable   ZBMI OPG Vit. D ZBMI OPG Vit. D ZBMI OPG Vit. D
Colchicine daily dose r 0.609 − 0.218 − 0.013 0.473 0.018 − 0.094 − 0.191 0.164 − 0.099
p 0.004* 0.295 0.952 0.035* 0.932 0.655 0.420 0.433 0.636
Colchicine TTT duration r 0.002 0.092 − 0.546 − 0.078 − 0.291 0.033 − 0.125 − 0.230 − 0.506
p 0.991 0.616 0.001* 0.712 0.106 0.860 0.553 0.205 0.003*
Duration of attack r 0.230 − 0.265 − 0.188 0.395 0.216 0.112 − 0.165 − 0.445 − 0.175
p 0.268 0.136 0.296 0.151 0.228 0.536 0.432 0.009* 0.330
OPG r 0.036   0.559 0.262   0.150 0.043   0.306
p 0.866 0.001* 0.205 0.404 0.838 0.083
Vit. D serum level r − 0.227 0.559   − 0.074 0.150   − 0.170 0.306  
p 0.274 0.001* 0.724 0.404 0.417 0.083
  1. Total = 33. ZBMI, body mass index Z scores, TTT treatment, OPG osteoprotogerin, r correlation coefficient, p < 0.05 is a significant correlation. Pearson correlation. *Significant