A survey distributed by researchers from the Chinese General Hospital and Medical Center in Manila, Philippines, may have found a link between the number of duty hours and the prevalence of physicians who smoke. The survey was used to evaluate the smoking behaviors and motives of health care professionals in specialty training in Metro Manila Hospitals. The physicians were divided into groups according to their duty schedules and specialty training. Results from the survey showed that in total, 27.83 percent of the surveyed population were smokers.

Among the overall group, researchers found that the highest prevalence of smokers was observed among surgeons at 39.62 percent, and those who work every two days duty schedules. Social factors such as the presence of an immediate colleague or superior who smoke also increase the likelihood of smoking.

"Health care professionals, particularly those who are considered specialists, should act as role models for health and wellness," said Dr. Angelo T. Adraneda, a pulmonologist based in Manila, Philippines, and lead researcher. He added, "A considerable number of physicians continue the habit despite knowing its ill effects and consequences."