Table 1

Description of data sources that have been integrated into (1) or linked with (2) the New Jersey Safety and Health Outcomes (NJ-SHO) warehouse

Data sourceContainsYears# of records in final warehouseData obtained from
(1) NJ Driver Licensing1 Detailed data on every driver licensed in the state of NJ at some point during study period2004–2018≈11 million driversNJ Motor Vehicle Commission
(2) NJ Administration of the Courts (AOC) events (eg, citations, suspensions, restorations)1 Date and type of all licence-related events in NJ; was directly populated by AOC into the NJ Driver Licensing Database2004–2018≈86 million eventsNJ Motor Vehicle Commission
(3) NJ Crash Report1*Crash-level, vehicle-level, driver-level, passenger-level and pedestrian/pedalcyclist-level data for all police-reported crashes in NJ2004–2017≈8 million drivers, ≈2.7 million passengers, ≈120 000 pedestrians/ pedalcyclistsNJ Motor Vehicle Commission
(4) NJ Birth Certificate1Birth certificate data for all births occurring in NJBirth years
≈2.5 million birthsNJ Department of Health
(5) NJ Death Certificate1Death certificate data for all NJ deaths2004–2016≈940 000 deathsNJ Department of Health
(6) NJ Hospital Discharge Data Collection System1 Detailed utilisation data on all NJ inpatient, outpatient and emergency department discharges; files are derived from hospital uniform billing information2004–2017≈63 million visitsNJ Department of Health
(7) CHOP electronic health record (EHR)1 EHR data on all CHOP healthcare network patients who were NJ residents at last CHOP visit2005–2018§≈200 000 patientsCHOP
(8) Geographical-level sources (eg, US Census, American Community Survey)1 Age-specific, sex-specific and race/ethnicity-specific population data; census tract-level indicators are assigned to individuals based on geocoded residential addresses2004–2018US Census Bureau website
(9) National Highway Traffic Safety Administration (NHTSA) Catalog and Vehicle platform1 Decodes VIN of a specified vehicle and provides detailed vehicle information (eg, model year, vehicle type, presence of safety features)Crash years 2004–2017Varies by year; 2017 data: 95% of vehiclesNHTSA
(10) Medicaid2 Insurance enrolment; demographics; medical conditions; medication use; all inpatient and outpatient encounters with a healthcare provider2007–2012>500 000 beneficiaries/yearCenters for Medicare and Medicaid Services
(11) Medicare Fee-for-Service Claims2 Insurance enrolment; demographics; medical conditions; medication use; all inpatient and outpatient encounters with a healthcare provider2007–2017≈1.5 million NJ beneficiaries/yearCenters for Medicare and Medicaid Services
  • *A crash is reportable to police if it results in injury to or death of any person, or damage to property of any one person in excess of $500.

  • †Subsequent linkages will include a much wider range of birth years (through the most recent year available).

  • ‡Note that this is expected to be a more complete reporting of crash-related fatalities than NHTSA’s Fatality Analysis Reporting System, which is restricted to fatalities occurring ≤30 days of crash.

  • §Currently, EHR data for patients born from 1987 to 2000 (ie, driving-eligible ages) are integrated into the NJ-SHO.

  • CHOP, Children’s Hospital of Philadelphia; VIN, vehicle identification number.