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  Indian J Med Microbiol
 

Figure 2: Meta-analysis of trials showing effect of vitamin D supplementation in prevention of respiratory tract infections. Effect of vitamin D supplementation in prevention of respiratory tract infections. Random effect model (DerSimonian laird); Odds ratio = 0.582 (0.417 – 0.812) Z = - 3.185, P value = 0.001, test for heterogeneity t^2= 0.064

Figure 2: Meta-analysis of trials showing effect of vitamin D supplementation in prevention of respiratory tract infections. Effect of vitamin D supplementation in prevention of respiratory tract infections. Random effect model (DerSimonian laird); Odds ratio = 0.582 (0.417 – 0.812) Z = - 3.185, <i>P</i> value = 0.001, test for heterogeneity t^2= 0.064