Figure 1

Analysis of disease specific death according to diagnostic method and diagnostic periods. (a) In the entire period, a diagnosis of TC and initial distant metastasis by asymptomatic screening was better than that with symptomatic diagnosis (Pā<ā0.001). (b) When the diagnostic symptoms were divided into local and systemic symptoms, systemic symptoms had a poorer prognosis versus local symptoms (Pā<ā0.001).