Fig. 1 | Scientific Reports

Fig. 1

From: Influence of smoking status on the relationship between serum selenium and cause-specific mortality in US adults

Fig. 1

The participants selection flow-chart. For follow-up studies, researchers considered eligible must have both age, gender, race information and serum selenium concentrations. In addition, they should have no history of cancer at baseline, eligibility status for mortality follow-up, and no disappearance during follow-up. Finally, a total of 5499 participants were included in the study.

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