Psychiatrists are most likely to be fined for extreme speeding, while cardiologists are most likely to drive luxury cars, according to an American study of physician driving behaviours in the Christmas issue of The BMJ.
But the theory that certain specialities may be treated more leniently by police officers than others is not borne out by the results.
Many people believe that medical speciality choices are associated with certain personalities.
Driving behaviours have also been linked to personal traits in the general population, but no study has examined driving behaviours in physicians.
So a team of American researchers set out to determine whether behaviours like fast driving, luxury car ownership and leniency by police officers, differ across medical specialities.
Their findings are based on 5,372 physicians and 19,639 non-physicians (controls) issued with a speeding ticket in Florida, United States, from 2004 to 2017.
This information was linked to publicly available data on physician characteristics to assess which specialities had a greater need for speed, which specialities commonly owned luxury cars and whether physicians in certain specialities received more lenient treatment by law enforcement when pulled over for speeding.
Extreme speeding was defined as driving 20 mph (32kph) above the speed limit and luxury car ownership included makes such as Audi, BMW, Ferrari, Maserati and Porsche.
Leniency by police officers was defined as recording lower speeds to impose a smaller fine (known as “speed discounting”).
Physicians received a total of 14,560 speeding tickets over the study period.
After taking account of age and sex, the proportion of drivers who were reported driving at speeds greater than 20 mph (32kph) was similar between physicians and non-physicians who received a ticket for speeding (26.4% versus 26.8%).
Among physicians who received a ticket, psychiatrists were most likely to be fined for extreme speeding.
Only 18.5% of tickets were assigned to women, despite women comprising one-third of physicians in the US.
Among drivers who received a ticket, luxury car ownership was most common among cardiologists (40.9%) and least common among physicians in emergency medicine, family practice, paediatrics, general surgery and psychiatry (20.6%).
Speed discounting was common, but rates did not differ by speciality and did not differ between physicians and non-physicians.
This is an observational study, so can’t establish cause, and results may not apply to areas with different driving cultures or policing practices.
What’s more, the researchers can’t rule out the possibility that other unmeasured factors may have had an influence.
But they say this is the first study to examine driving behaviours in physicians and clearly shows that rates of extreme speeding were highest among psychiatrists who received a ticket, whereas cardiologists were the most likely to be driving a luxury car when ticketed.
The view that some specialities may get off more lightly than others is not borne out by the results, which show leniency by police officers was similar across specialities and between physicians and non-physicians, they add.
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