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This study uses only secondary data analyses without any personal information identified using statistical data from NHANES website; The program was approved by the National Centre for Health Statistics (NCHS) Research Ethics Review Committee and informed consent was obtained from the participants.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"The authors declare that they agree with the publication of this paper in this journal.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to publish"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"49"}}