Fig. 3From: Practice variation in the use of tests in UK primary care: a retrospective analysis of 16 million tests performed over 3.3 million patient years in 2015/16Variability and rates of tests. The vertical line represents the median rate of test use and the horizontal line represents the median coefficient of variation. Median rate (vertical line) = 167.3. Median CoV (horizontal line) = 22.7Back to article page