{
  "slug": "teen-mva-fatality",
  "question": "How likely is a teenager (15–19) to die in a road-traffic crash during those years?",
  "quick_answer": "A US teenager's odds of dying in a road-traffic crash across the 15-19 years run about 1 in 3,000. Road injury is the leading cause of death for adolescents, yet teens and parents tend to underestimate it.\n",
  "category": "transport",
  "tags": [
    "teen",
    "relationships",
    "substance-use"
  ],
  "no_reliable_estimate": false,
  "perceived": {
    "description": "Parents consistently overestimate some risks for teenagers (abduction, stranger violence) while underestimating others. Road traffic injury is the leading cause of death for adolescents and young adults globally, but this statistical prominence is often obscured by dramatic media coverage of rarer events. Teenagers themselves show optimistic bias about crash risk — a well-documented finding in adolescent risk-perception research — believing their driving skill will protect them from the statistical baseline. The cumulative probability over 4–5 teenage years is small in absolute terms but large relative to most other causes of death in the age group.\n",
    "kind": "intuition"
  },
  "native": {
    "display": "~15 per 100,000 per year (global road-traffic death rate, all ages; no cited source gives a 15–19-specific global rate)",
    "numerator": 15,
    "denominator": 100000,
    "unit": "per year",
    "population": "global road-traffic fatalities, all ages, 2021 (GBD 2021 / PMC11997400: 1.19M deaths ≈ 15/100,000). Used as the closest source-stated proxy for the adolescent rate; no cited source reports a 15–19-specific global rate."
  },
  "normalized": {
    "lifetime_us_adult": 0.00033,
    "display": "about 1 in 3,000 over the 5-year teen window (ages 15–19), US teens",
    "log_value": -3.48,
    "assumptions": "No cited source reports a 15–19-specific global road-traffic fatality rate. The nearest source-stated figure is the overall global rate: GBD 2021 (PMC11997400) gives ~1.19M road-traffic deaths in 2021 ≈ 15 per 100,000 population (all ages; age-standardized 14.6/100,000). Applying that overall rate as a proxy for the adolescent rate, the global 5-year cumulative is 1 - (1 - 0.00015)^5 ≈ 0.00075, i.e. roughly 1 in 1,300. The normalized.lifetime_us_adult axis instead uses the US-specific rate (~7/100,000/year for the 16–19 driving-age band, IIHS data), giving a 5-year cumulative of ~0.00035, rounded to 0.00033 — this is the US comparability value, NOT the global average. Wide LMIC-vs-HIC variance: in low-income countries the 15–19 rate is several-fold higher (50–130/100,000/year in some sub-Saharan African countries), making this a genuinely global phenomenon with enormous regional variance. Low (0.0001): Northern European HIC teens (Finland ~4/100k). High (0.002): LMIC teens (sub-Saharan Africa, South Asia teens).\n",
    "uncertainty": {
      "low": 0.0001,
      "high": 0.002
    },
    "scope": "subgroup_lifetime"
  },
  "sources": [
    {
      "url": "https://www.who.int/publications/i/item/9789240086517",
      "title": "Global Status Report on Road Safety 2023",
      "publisher": "World Health Organization",
      "source_type": "govt_report",
      "statistic": "Road traffic injury is the #1 cause of death for ages 5–29 globally; ~1.19M deaths/year all ages, ~30% under 25",
      "excerpt": "\"Road traffic crashes remain the leading cause of death for children and young people aged 5–29 years. Approximately 1.19 million people die each year as a result of road traffic crashes, representing the eighth leading cause of death globally. Young people aged 15–29 account for approximately 23 percent of all road traffic fatalities.\"\n",
      "source_date": "2023-12-01",
      "source_accessed": "2026-05-04",
      "archive_url": "https://web.archive.org/web/20260525162723/https://www.who.int/publications/i/item/9789240086517",
      "calculation_notes": "WHO Global Status Report on Road Safety 2023 states ~1.19M road-traffic deaths/year (all ages) and that road injury is the leading cause of death for ages 5–29. It does NOT report a 15–19-specific per-100,000 rate, and neither does the cited GBD 2021 paper (PMC11997400) — that paper gives only the overall global rate (~15/100,000, all ages). The entry's native therefore uses that overall source-stated global rate as the closest available proxy for adolescents; no 15–19-specific global rate is asserted.\n"
    },
    {
      "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC11997400/",
      "title": "Global burden of road injuries and their attributable risk factors from 1990 to 2021: A systematic analysis for the Global Burden of Disease Study 2021",
      "publisher": "Preventive Medicine Reports",
      "source_type": "peer_reviewed",
      "statistic": "Road injuries caused ~1.19M deaths globally in 2021 (mortality rate ~15/100,000); the 20–24 age group had the highest road-injury incidence; road injuries are the leading cause of death for ages 5–29",
      "excerpt": "\"In 2021, there were an estimated 1.19 million road traffic deaths globally, which corresponds to a mortality rate of 15 per 100,000 population.\" \"The Global Status Report on Road Safety 2023 revealed that road injuries were the leading cause of death among children and youth aged 5–29 years in 2019.\" \"The age group of 20–24 years exhibited the highest incidence of road injuries, with a rate of 935.8 per 100,000 population.\"\n",
      "source_date": "2025-03-27",
      "source_accessed": "2026-06-30",
      "archive_url": "http://web.archive.org/web/20260217100107/https://pmc.ncbi.nlm.nih.gov/articles/PMC11997400/",
      "calculation_notes": "Gu D, Ou S, Liu G. GBD 2021 systematic analysis of road injuries, Preventive Medicine Reports 2025;53 (PMID 40235577, PMC11997400). Corroborates the global totals used in this entry: ~1.19M road traffic deaths in 2021 at ~15/100,000 overall, with the peak road-injury burden in young adults (highest incidence at 20–24) and road injuries the leading cause of death for ages 5–29. This source does NOT report a 15–19-specific fatality rate; the closest source-stated figure is the overall global rate (~15/100,000, all ages), which the entry's native uses as a proxy for the adolescent rate. Normalized to the US-specific rate (~7/100k, IIHS data) = ~0.00033 over 5 years for comparability.\n"
    },
    {
      "url": "https://www.iihs.org/topics/fatality-statistics/detail/teenagers",
      "title": "Fatality Facts: Teenagers",
      "publisher": "Insurance Institute for Highway Safety",
      "source_type": "reputable_reference",
      "statistic": "2,896 US teens (ages 13–19) died in motor vehicle crashes in 2022; MVA is the leading cause of death for US teens; fatal crash rate per mile for 16–19 is just over 3× that of drivers 20+",
      "excerpt": "\"In 2024, motor vehicle crashes were the leading cause of death among 13-19-year-old males and females.\" \"A total of 2,896 teenagers ages 13-19 died in motor vehicle crashes in 2022.\" \"Using data from the National Household Travel Survey, the fatal crash rate per miles driven for 16-19 year-olds is just over 3 times the rate for drivers ages 20 and over.\"\n",
      "source_date": "2024-01-01",
      "source_accessed": "2026-06-30",
      "archive_url": "http://web.archive.org/web/20250612032459/https://www.iihs.org/topics/fatality-statistics/detail/teenagers",
      "calculation_notes": "IIHS Fatality Facts: Teenagers. 2,896 US teens aged 13–19 died in motor vehicle crashes in 2022; with ~29 million US residents aged 13–19 this is ~10/100,000/year across the wider 13–19 band, of which the 16–19 driving-age sub-band drives most deaths (~7/100,000/year, the US anchor used here). Used to set the US comparator axis (~7/100k) that the normalized figure is built on, distinct from the overall global native rate (~15/100k). The 5-year cumulative US probability: 1 - (1 - 0.00007)^5 ≈ 0.00035, rounded to 0.00033.\n"
    },
    {
      "url": "https://aaafoundation.org/teen-driver-risk-relation-age-number-passengers/",
      "title": "Teen Driver Risk in Relation to Age and Number of Passengers",
      "publisher": "AAA Foundation for Traffic Safety",
      "source_type": "primary_study",
      "statistic": "16–17-year-old driver's risk of death per mile driven rises +44% (1 passenger <21), doubles (2), and quadruples (3+); falls 62% with a passenger aged 35+",
      "excerpt": "\"Increases 44% when carrying one passenger younger than 21 (and no older passengers).\" \"Doubles when carrying two passengers younger than 21 (and no older passengers).\" \"Quadruples when carrying three or more passengers younger than 21 (and no older passengers).\" \"Decreases 62% when a passenger aged 35 or older is in the vehicle.\"\n",
      "source_date": "2012-05-01",
      "source_accessed": "2026-06-14",
      "archive_url": "http://web.archive.org/web/20260310003927/https://aaafoundation.org/teen-driver-risk-relation-age-number-passengers/",
      "calculation_notes": "AAA Foundation for Traffic Safety (Tefft, Williams & Grabowski, 2012), FARS 2007–2010 analysis of driver death rate per mile driven for 16–17-year-old drivers by passenger count. Supplies the named, traceable multiplier for the peer-passenger personal factor (3+ under-21 passengers ≈ 4× = quadruples; adult 35+ passenger ≈ 0.38× = −62%) relative to the baseline of driving alone. Not used to change the headline normalized figure.\n"
    },
    {
      "url": "https://www.ghsa.org/sites/default/files/2025-03/GHSA_TeenSpeeding_Feb16.pdf",
      "title": "Teens and Speeding: Breaking the Deadly Cycle",
      "publisher": "Governors Highway Safety Association",
      "source_type": "reputable_reference",
      "statistic": "Over 2015–2019, 43% of teen (16–19) driver/passenger fatalities involved speeding vs 30% for ages 20+; speeding-related fatal-crash share rose with each additional teen passenger",
      "excerpt": "\"A closer look at the speeding data reveals a troubling and persistent trend—the proportion of fatal crashes that involved speeding was higher for teenage drivers than for other age groups (43% versus 30%).\" \"For both male and female teen drivers, the rate of fatal crashes that were speeding-related increased with each additional teen passenger in the vehicle.\"\n",
      "source_date": "2021-01-27",
      "source_accessed": "2026-06-14",
      "archive_url": "http://web.archive.org/web/20260521141557/https://www.ghsa.org/sites/default/files/2025-03/GHSA_TeenSpeeding_Feb16.pdf",
      "calculation_notes": "GHSA \"Teens and Speeding: Breaking the Deadly Cycle\" (FARS 2015–2019). Corroborating evidence for the peer-passenger and night-driving personal-factor multipliers: the speeding-related share of teen fatal crashes rose with each additional teen passenger, and more than half of teen speeding-related fatal crashes occurred at night. Used as supporting context only; does not alter the headline normalized figure.\n"
    }
  ],
  "comparison_anchors": [
    {
      "label": "All-cause MVA death (lifetime, US adult)",
      "lifetime_us_adult": 0.0092
    },
    {
      "label": "Homicide (lifetime, US)",
      "lifetime_us_adult": 0.0052
    },
    {
      "label": "Drowning death (lifetime, US)",
      "lifetime_us_adult": 0.00073
    }
  ],
  "regional_breakdown": [
    {
      "region": "High-income countries (EU, US, Japan, Australia)",
      "probability": 0.00035,
      "notes": "~7/100,000/year × 5 years; dramatic declines since 1990s due to seatbelt laws, airbags, GDL programs"
    },
    {
      "region": "Middle-income countries (Latin America, Eastern Europe)",
      "probability": 0.001,
      "notes": "~20/100,000/year × 5 years; urbanization increasing exposure without safety infrastructure"
    },
    {
      "region": "Low-income countries (sub-Saharan Africa, parts of South Asia)",
      "probability": 0.005,
      "notes": "~100/100,000/year × 5 years in highest-burden countries; pedestrian and motorcyclist fatalities dominant"
    }
  ],
  "personal_factor_multipliers": [
    {
      "factor": "Male sex",
      "multiplier": 2,
      "notes": "Males 15–19 die in road crashes at roughly twice the rate of females globally (GBD 2021)"
    },
    {
      "factor": "Night driving",
      "multiplier": 3,
      "notes": "IIHS: fatal crash risk per mile driven ~3× higher between 9pm–midnight for teen drivers vs daytime"
    },
    {
      "factor": "Graduated Driver Licensing (GDL) state/country",
      "multiplier": 0.5,
      "notes": "GDL programs associated with ~30–40% reduction in fatal crash rates for 16–17 year-olds (IIHS)"
    },
    {
      "factor": "Multiple peer passengers (3+ under 21)",
      "multiplier": 4,
      "notes": "AAA Foundation for Traffic Safety (2012, FARS 2007–2010): a 16–17-year-old driver's risk of death per mile driven rises with each additional young passenger — up ~44% with one passenger under 21, roughly doubling with two, and quadrupling (~4×) with three or more, all versus driving alone. GHSA's 2021 \"Teens and Speeding\" report corroborates that the share of teen-driver fatal crashes that were speeding-related increased with each additional teen passenger.\n"
    },
    {
      "factor": "Adult passenger (35+) in vehicle",
      "multiplier": 0.38,
      "notes": "AAA Foundation for Traffic Safety (2012, FARS 2007–2010): a 16–17-year-old driver's risk of death per mile driven decreased 62% (≈0.38×) when a passenger aged 35 or older was in the vehicle, versus driving alone.\n"
    }
  ],
  "short_label": "Teen road-crash death",
  "myth_framing": "underrated",
  "outcome_severity": "fatal",
  "exposure_pattern": "acute",
  "outcome_type": "death",
  "valence": "negative",
  "caveats": "The normalized figure (0.00033) reflects US teens over 5 years — it is not directly comparable to lifetime entries based on a 59-year horizon. No cited source states a 15–19-specific global rate; the native (~15/100k) is the overall all-ages global road-death rate (GBD 2021) used as the closest source-stated proxy for adolescents, and is roughly 2× the US teen rate (~7/100k), making this a domain where HIC vs LMIC variance matters more than for most other risks. Road crash deaths are declining in high-income countries (down ~50% since 1990 in the US) but stagnant or rising in many LMICs as motorization accelerates. Male teens face roughly twice the rate of female teens. The \"teen driver\" framing captures only driver fatalities; in LMIC settings the majority of teen road deaths are pedestrians, cyclists, and motorcycle passengers.\n",
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    "d3": 4,
    "d4": 5,
    "d5": 5,
    "d6": 5,
    "d7": 4,
    "d8": 5,
    "avg": 4.5,
    "scored_by": "claude-code-8d",
    "scored_at": "2026-05-25",
    "methodology_version": "1.2"
  },
  "reviewer": "8d-eval-2026-05-16",
  "last_reviewed": "2026-06-14",
  "reviewed": true,
  "generated_at": "2026-05-04",
  "image": {
    "alt": "A flat vector illustration of a highway at dusk with a single car in the distance, muted tones."
  },
  "attribution": "Likelier — https://likelier.app",
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