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  Indian J Med Microbiol
 

Figure 4: Meta-analysis of trials showing effect of vitamin D supplementation in prevention of respiratory tract infections in adult population Effect of vitamin D supplementation in prevention of respiratory tract infections in adult population. Random effect model (DerSimonian laird); Odds ratio = 0.544 (0.278 – 1.063) Z = - 1.783 P value = 0.075 test for heterogeneity t^2 = 0.247

Figure 4: Meta-analysis of trials showing effect of vitamin D supplementation in prevention of respiratory tract infections in adult population Effect of vitamin D supplementation in prevention of respiratory tract infections in adult population. Random effect model (DerSimonian laird); Odds ratio = 0.544 (0.278 – 1.063) Z = - 1.783 <i>P</i> value = 0.075 test for heterogeneity t^2 = 0.247