Data from the National Highway Traffic Safety Administration on fatalities reveals men and people driving at night were the most likely to have alcohol, marijuana or other illicit or prescription drugs show up on a toxicology screen after the accident.
Alcohol was the most common drug, followed by marijuana and stimulants, which include Adderall and amphetamines.
The records couldn't show whether any of the drugs or a particular combination of drugs was causing the crash.
Majority of drivers killed under the influence of drugs or alcohol, data reveals
