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Delay in Driving Licensure and Its Relevance to Development Among Youth

Federico E. Vaca, MD, MPH

Professor

University of California Irvine School of Medicine

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Thank You

  • Kaigang Li - Colorado State
  • Jim Fell - NORC
  • Eduardo Romano - PIRE
  • Xiang Gao - Colorado State

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  • Bruce Simons-Morton - NIH/NICHD
  • Denise Haynie - NIH/NICHD

NICHD - NEXT Generation Health Study: This project (contract

HHSN275201200001I) was supported in part by the Intramural

Research Program of the Eunice Kennedy Shriver National

Institute of Child Health and Human Development; the National

Heart, Lung, and Blood Institute; the National Institute on

Alcohol Abuse and Alcoholism; the National Institute on Drug

Abuse; and the Maternal and Child Health Bureau of the Health

Resources and Services Administration.

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NIAAA - R01, R21 Funding Support: Research reported in this

publication was supported by the National Institute on Alcohol

Abuse and Alcoholism of the National Institutes of Health under

award numbers R01AA026313 and R21AA026346. The content

is solely the responsibility of the authors and does not necessarily

represent the official views of the National Institutes of

Health.

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Licensure

  • Development
  • Independence
  • GDL benefits

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  • Delay in Driving Licensure (DDL)?

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Factor Contributing to DDL

  • More than 2/3 of legally eligible teen’s DDL
  • Latino youth
  • Parent factors
    • Single parent at home
    • Parent education
  • Family affluence

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  • Mother’s PMK - Lower odds of DDL

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Time to Licensure

  • Survival analysis approach
  • Median time to licensure after reaching legal driving age:

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    • Non-Latino Whites 0.41 yrs.
    • African Americans 2.90 yrs.
    • Latinos 3.47 yrs.

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GDL and DDL

  • Interaction b/w GDL restrictions in learners permit phase and covariates
      • Differed by states’ GDL requirements
    • Number of SPD hours
      • Race and Ethnicity
    • Length of Permit holding period
      • Family affluence
      • Single parent household
  • Suggest some burden effects due to GDL

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DDL and Emerging Adulthood

  • If no DDL, higher likelihood of reporting:

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    • Excellent to good health
    • Completing a 4-year college or graduate school or tech/community college
    • Employed
      • (< 30 hrs./wk. or ≥ 30 hrs./wk.)

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Employment

Health

Education