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Table 3 The result of two-piecewise linear regression model

From: The relationship between SARS-COV-2 RNA positive duration and the risk of recurrent positive

  OR (95% CI) P value
Fitting model by standard linear regression 1.05 (1.02–1.08) 0.001
Fitting model by two-piecewise linear regression   
Inflection point of virus positive duration (day) 8 -
 < 8 1.35 (0.83–2.19) 0.228
 ≥ 8 1.04 (1.02–1.07) 0.002
P for log likelihood ratio test - 0.286
  1. We adjusted age, sex and other covariates presented in Table 1
  2. CI confidence interval, OR odd ratio
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