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Fig. 4 | Respiratory Research

Fig. 4

From: Measurement of C-reactive protein, procalcitonin and neutrophil elastase in saliva of COPD patients and healthy controls: correlation to self-reported wellbeing parameters

Fig. 4

Bland-Altman plot of baseline salivary PCT levels across healthy non-smokers, health smokers and stable COPD. The upper and lower bars represent 1.96 Standard Deviations (SD) from the mean. Almost all replicates fell within the 95 % limits of agreement (difference between stable baseline values), with only 4 outliers

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