Obesity trends in the surgical population at a large academic center : a comparison between 1989-1991 to 2006-2008 epochs.
BACKGROUND
Changes in the prevalence of obesity of surgical patients overtime and in relation to the general population have not been well characterized.


METHODS
Height, weight, age and gender data of adult patients who underwent general anesthesia at our institution were abstracted. Reliable data was available for the years 1989-1991 and 2006-2008, and comparisons were made between these epochs. Additional comparisons were made between our Minnesota surgical patients and the general Minnesota population.


RESULTS
Substantial changes in patient weight occurred with a decline in normal weight patients (body mass index [BMI] < or =25.0) from 41.6% to 30.9% (P <0.001), while the prevalence of obesity (BMI 30-34.9) increased from 14.9% to 20.6% (P <0.001) and morbidly obesity (BMI > 35) from 7.1% to 14.8% (P <0.001). Minnesota surgical patients had a higher prevalence of obesity in every demographic category (P <0.001) compared to the general population.


CONCLUSIONS
A substantial increase in the prevalence of obesity and morbid obesity among surgical patients at our institution occurred and the prevalence of obesity in our contemporary practice is higher than the general population. These observations most likely have profound implications on healthcare delivery resources, though its impact has yet to be determined.
Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, USA.
R J
RJ
Hamlin
Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, USA.
J
J
Sprung
Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, USA.
R E
RE
Hofer
Division of Biomedical Statistics, Mayo Clinic, Rochester, Minnesota, USA.
D R
DR
Schroeder
Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, USA.
T N
TN
Weingarten
D000046:Academic Medical Centers; D000328:Adult; D015992:Body Mass Index; D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D009767:Obesity, Morbid / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D013514:Surgical Procedures, Operative