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Fig. 2 | BMC Endocrine Disorders

Fig. 2

From: Time for a reassessment of the treatment of hypothyroidism

Fig. 2

Demonstration of correlation bias by combining dissimilar groups. In randomly sampled groups showing the same strong inverse correlation (blue and red regression line) but slightly shifted centres, a combined analysis (black regression line) - unlike the correct analysis by individual groups - weakens the correlation. Distinguishing between averaged and typical outcomes is particularly important for parameters with known high individuality such as thyroid hormones

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