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        Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
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          YRBS — United States, 2021 Supplementary Tables

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          These tables provide background and supplementary information on the Youth Risk Behavior Surveillance System.

          Table 1. Number of states and local school districts that conducted a Youth Risk Behavior Survey and number with and without representative data, by year of survey
          Table 2. Number of states and local school districts that included at least one of two questions ascertaining sexual minority status and obtained representative data, by year of survey
          Table 3: Sample sizes, response rates, and demographic characteristics
          Table 4: Number and percentage of students, by sexual identity
          Table 5: Number and percentage of students, by sex of sexual contacts
          Table 6: Sex of sexual contacts, by sexual identity
          Last Reviewed: April 27, 2023
          Source: Division of Adolescent and School Health, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
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