Figure 2From: Mitochondrial haplogroup H1 is protective for ischemic stroke in Portuguese patients Logistic regression odds ratios and confidence intervals (CIs) for mtDNA haplogroup association with ischemic stroke risk. Bars indicate 95% CIs and are shown as dotted lines when the upper confidence limit (CL) is over 7. The upper CL is indicated when it is over 7 and the respective lower CL is greater than 1.Back to article page