Statistical analysis was performed using IBM SPSS Statistics for Macintosh, Version 19.0 (Armonk, NY: IBM Corp) Sociodemographic parameters such as age (12–23, 24–59 months), sex (male/female), socioeconomic status (Kuppuswami's Classification),[15 (link)17 (link)] mother's education (literate/illiterate), physical activity profile (Sun Exposure, time spent outdoor), calcium-rich diet, growth, and clinical parameters such as age at dentition, calcium and Vitamin D supplementation during infancy, recurrent episodes of upper respiratory tract infections, z score, frontal bossing, epiphyseal widening, Genu varum, Genu valgum, and biochemical markers (calcium, phosphorus, alkaline phosphatase, and PTH) were considered as explanatory variables. Descriptive analysis using frequency percentage for categorical data and mean (±standard deviation [SD]) for continuous variables were carried out.
The association between explanatory and outcome variables was carried out using Chi-square test. The Pearson's correlation was applied to see the relationship between biochemical parameters and 25(OH)D levels. The value of P < 0.05 was considered as statistically significant.
The association between explanatory and outcome variables was carried out using Chi-square test. The Pearson's correlation was applied to see the relationship between biochemical parameters and 25(OH)D levels. The value of P < 0.05 was considered as statistically significant.