Fig. 4: Deming regression. | Communications Medicine

Fig. 4: Deming regression.

From: Real-world smartphone-based point-of-care diagnostics in primary health care to monitor HbA1c levels in people with diabetes

Fig. 4

The Deming regression analysis shows excellent agreement with a Pearson’s r of 0.91 when comparing capillary blood using the TSB POC method and the reference standard. a shows the original Deming regression analysis. b presents the results of the same Deming regression analysis after taking into account a correction factor according to the formula: (TSB POC capillary values - original intercept) * 1/ original slope. EST estimated value, SE standard error, LCI lower confidence interval, UCI upper confidence interval. n-value for both analyses: 384 (in accordance with valid capillary TSB POC measurements (see Supplementary Methods II)).

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