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. 2013 Sep 30;46(5):271–281. doi: 10.3961/jpmph.2013.46.5.271

Figure 1.

Figure 1

Nonparametric regression curve for the relation of sleep duration with all-cause and disease-specific mortality, the Korean Multi-center Cancer Cohort (KMCC) study. (A) All-cause mortality. ICD-10 codes of A00-Z99. (B) Cancer mortality. ICD-10 codes of C00-C99. (C) CVD mortality. ICD-10 codes of I00-I99. (D) Respiratory disease mortality. ICD-10 codes of J00-J99, A15-A19. (E) Mortality from external cause. ICD-10 codes of S00-S99, T00-T99, V01-X59. (F) Mortality from not elsewhere classified cause. ICD-10 codes of R00-R99.1p-value for the non-linear relation between sleep duration and mortality tested by restricted cubic splines. HR, hazard ratio; CI, confidence interval.