• INJSIGNFCNT: Limited by injury for at least 24 hours (significant injury), past 3 months

• INJSIGNUM: Number of significant injuries, past 3 months (for sample adults)

• INJSIGNUMCH: Number of significant injuries, past 3 months (for sample children)

• INJSIGHOME: Significant injury occurred at home, past 3 months

• INJSIGCHORE: Significant injury occurred while doing chores, past 3 months

• INJSIGWORK: Significant injury occurred at work, past 3 months

• INJSIGSCH: Significant injury occurred at school/daycare, past 3 months

• INJSIGSPOR: Significant injury occurred while playing sports/exercising, past 3 months

• INJSIGMOTOR: Significant injury caused by motor vehicle accident or collision, past 3 months

• INJSIGMVDRVR: Significantly injured in motor vehicle accident, past 3 months: Was driver

• INJSIGMVPSGR: Significantly injured in motor vehicle accident, past 3 months: Was passenger

• INJSIGMVBICL: Significantly injured in motor vehicle accident, past 3 months: Was bicyclist

• INJSIGMVPDTN: Significantly injured in motor vehicle accident, past 3 months: Was pedestrian

• INJSIGMVOTR: Significantly injured in motor vehicle accident, past 3 months: Other

• INJSIGFALL: Significant injury occurred due to fall, past 3 months

• INJSIGFALHOM: Significant fall occurred at home, past 3 months

• INJSIGFALWRK: Significant fall occurred at work, past 3 months

• INJSIGFALSCH: Significant fall occurred at school/daycare, past 3 months

• INJSIGSAWDR: Saw doctor about significant injury, past 3 months

• INJSIGER: Went to ER for significant injury, past 3 months

• INJSIGHOSP: Hospitalized for significant injury, past 3 months

• INJSIGBONES: Any broken bones due to significant injury, past 3 months

• INJSIGSTCH: Any stitches or staples due to significant injury, past 3 months

• INJSIGMISWRK: Number of workdays missed due to significant injury, past 3 months

• INJSIGFUTWRK: Will miss more workdays due to significant injury in past 3 months

• INJSIGSTPWRK: Stopped work or changed jobs due to significant injury, past 3 months

• INJSIGCHGWRK: Major change in work activities due to significant injury, past 3 months

• INJSIGMISSCH: Number of school days missed due to significant injury, past 3 months

• INJSIGFUTSCH: Will miss more school days due to significant injury, past 3 months

• TBILOSTCONEV: Ever lost consciousness due to blow/jolt to the head

• TBIDAZEV: Ever dazed or have gap in memory due to blow/jolt to the head

• TBICONSYMPEV: Ever had headache, vomiting, blurred vision, or mood changes after blow/jolt to the head

• TBICONCHKEV: Ever checked for concussion or brain injury

• TBICONCUSEV: Ever told had concussion or brain injury

• TBICONDAZYR: Lost consciousness, dazed or confused, or had gap in memory, past 12 months

• TBICONHEADYR: Headache, sensitivities, balance problems or mood change, past 12 months

• TBISPORTYR: Blow or jolt to head while playing sports or rec activity, past 12 months

• TBILEAGUEYR: Blow or jolt to head while playing organized sports, past 12 months

• TBIEVALYR: Evaluated for concussion, past 12 months

• INJREPANY: Any injury due to repetitive strain, past 3 months

• INJREPSIG: Limited by repetitive strain injury for at least 24 hours (significant injury), past 3 months

• INJREPSGDR: Saw doctor about significant repetitive strain injury, past 3 months

• INJREPSGMSWK: Number of work days missed due to significant repetitive strain injury, past 3 months

• INJREPSGFTWK: Will miss more work days due to significant repetitive strain injury, past 3 months

• INJREPSGSTWK: Stopped work or changed jobs due to significant repetitive strain injury, past 3 months

• INJREPSGCHWK: Major change in work activities due to significant repetitive strain injury, past 3 months

• INJREPSGWKRE: Ever told significant repetitive strain injury in past 3 months likely to be work-related

The NHIS has adopted several different approaches to the collection of data on injury over time. Most recently, the NHIS questionnaire included an injury and poisoning supplement, fielded annually from 1997 until 2017. For more information on person- and injury-level data from the injury and poisoning supplements, please see our user note. The NHIS Disability Supplement (NHIS-D), fielded in 1994-95, also collected a handful of measures of injury, such as DPADLINJPLACE (Place where injury or accident causing main limiting ADL condition occurred) and DPADLINJURYE (External cause of injury for main limiting ADL condition caused by accident or injury). In addition to the two supplements already mentioned, the NHIS has also fielded other supplements over the years that partially or fully cover injury topics. For example, there are a set of variables on adult conditions that were collected only for 2008 including injury variables such as HEADINJEV (Ever had injury to head or brain).