Fig. 2
From: Tapping natures rhythm: the role of season in mitochondrial function and genetics in the UK biobank
Seasonal variation of mitochondrial DNA abundance in the UK Biobank. The amount of mtDNA in blood cells varies with season in the UK Biobank. The average mtDNA abundance in S.D. from the mean (zero) is depicted as a dot and the borders of the 95% confidence intervals as horizontal bars. Numbers above each estimate indicate the sample size in each month. The seasonal effect was observed overall three years of recruitment and across all recruitment sites and was virtually unchanged when adjusting for most factors known to influence mtDNA abundance