Fig. 5
Risk of death by Middle East respiratory syndrome (MERS) by underlying medical condition. Panels a, b, c, d, and e show the risk estimates by underlying medical condition. The odds ratio (OR) for MERS death to compare those with underlying conditions against those without underlying conditions was calculated. The size of the diamonds reflects the sample size, and the whiskers extend to the lower and upper values of the 95% confidence interval (CI). The vertical dashed line shows the threshold value of OR = 1. The diamond without fill represents the pooled estimate using the inverse variance of the OR. I2 measures the extent of heterogeneity, representing the proportion of variance in a meta-analysis that is attributable to study heterogeneity