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Fig. 1 | BMC Medicine

Fig. 1

From: Predictive model for long COVID in children 3 months after a SARS-CoV-2 PCR test

Fig. 1

Observed and predicted risk of long COVID 3 months after a PCR test. This graph shows the mean predicted probability (hollow dots) and 95% confidence intervals of long COVID 3 months after a PCR test plotted against the observed proportion of the same outcome for 10 equally sized groups. The dashed line represents the line of equality and perfect calibration. The blue solid line is a smoothed locally weighted scatter plot smoothing (Lowess) regression line

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