Fig. S1. Comparison of age and sex distribution of stroke population from the Clinical Research Center for Stroke (CRCS) and from the Health Insurance Review and Assessment Service (HIRA). In HIRA, acute ischemic stroke patients (n = 5,264) who were admitted to the ER of 201 nationwide hospitals between January 2010 and March 2010 were assessed.

Table S1. Missing rates for the observed variables in total population (n = 9,417).

Table S2. Demographic and clinical characteristics of imputed and complete case.

Table S3. Prevalence ratio heterogeneity for sex among age bands in different models with stepwise adjustments (Complete case analysis, n = 5,726).

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