Statistics
SLE disease
DISEASE
Normality of data was ascertained by Kolmogorov Smirnov test. All continuous variables in this study were expressed as mean standard deviation (SD) or median interquartile range (IQR)/range as per the normality of the data. Categorical data was represented as number and percentage. Correlation among SLE disease activity scores, damage scores, levels of 25-hydroxyvitamin D3, CXCL-10, galectin-9 anti-dsDNA, serum complement components, age and disease duration was studied by Spearman’s rank correlation analysis. Association of categorical variables between two centres and between those with and without vitamin D insufficiency was tested using chi-square test or Fisher’s exact test. The continuous factors were tested by independent Student 