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Objective To explore the association between underweight and mortality from all cause Method We examined the relationship of underweight and mortality rnamong subjects who participated in the survey of cardiovascular risk factors (inrn 1984-1986 and in 1992). Relative Risks (RRs) were estimate from the COX proporrntional hazard model by using a BMI between 18.5-24.9kg/m2 as reference crnategory Results During an average 12.40 years followup, we documented 307 deaths of which 158rn were from cancer, 93 from cardiovascular diseases, and 56 from other causes Wrne observed a Lshaped relation between BMI and overall mortality.(P for trend
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