London: Obese cardiac patients are less likely to die compared to their normal weight counterparts, researchers have claimed.
The British Heart Foundation said that where people stored fat, not just general obesity, was important in this.
One explanation has been that maybe such patients were fitter, despite their size for example they were taking more exercise.
To see if this was the case, University College London researchers looked at data from patients who took part in the Health Survey for England or Scottish Health Survey .
The study of more than 4,400 patients found that, as with other studies, patients with cardiovascular disease, who were obese or overweight, were less likely to die over the next seven years than people of a normal weight who had the condition, the BBC reported.
In all 31 percent of patients were obese - that is with a body mass index of 30 or more.
Obese patients who did not stick to healthy lifestyle recommendations still had a lower risk of death than normal weight patients, who smoked or were inactive.
The study has been published Preventive Medicine.