Fig. 1From: The relationship between SARS-COV-2 RNA positive duration and the risk of recurrent positiveMultivariate adjusted smoothing spline plots of SARS-CoV-2 RNA positive in previous hospitalization and recurrent positive. We adjusted age, sex and other covariates presented in Table 1. The solid line represents the best-fit line, and the dotted lines are 95% confidence intervals. SARS-CoV-2: Severe acute respiratory syndrome coronavirus 2Back to article page