The relationship between excess body weight and the risk of XXXX from unnatural causes.

@entity1 @entity64 @entity28 @entity998 @entity204 @entity130
OBJECTIVE: The purpose is to exam whether excess body weight is associated with an increased risk of @entity204 from unnatural causes, particularly, injury. METHOD: We analyzed nationally representative data of 14,453 adults (19 and older) who participated in the third National Health and Nutrition Examination Survey, 1988-1994, and were followed up with vital statuses through December 31, 2006. We used Cox proportional hazard regression to estimate the hazard ratio (HR) of @entity204 from all unnatural causes combined and specific ones. Gray's test was performed to assess the equality of cumulative incidence functions between body mass index (BMI) levels. RESULTS: A total of 128 unnatural deaths were recorded during an 18-year follow-up with 193,019 @entity1 -years accumulated. Compared with healthy weight @entity1 , a @entity1 with excess body weight had a low hazard of @entity204 from unnatural causes [HR=1.00 (reference), 0.58 (0.39-0.87), and 0.50 (0.30-0.82) for healthy weight, overweight and @entity28 @entity1 , respectively]. Injuries, including motor @entity64 and @entity998 , were the major types of unnatural deaths (n=91, 71% of all unnatural deaths), and the risk of @entity204 from @entity130 was linearly and reversely associated with BMI. The @entity130 were 1.00 (reference), 0.57 (0.36-0.91), and 0.36 (0.19-0.69) for healthy weight, overweight and @entity28 @entity1 , respectively. All these estimates were obtained after adjustment of socio-demographic variables. DISCUSSION: Excess body weight appears to be associated with a low risk of @entity204 from unnatural causes, particularly, @entity130 . Additional investigations on the mechanism underlying the relationship between BMI and unnatural deaths are warranted.
