Meta-analysis on the risk of all-cause mortality and cardiovascular death in the early stage of hypertension

To evaluate the relationship among the early stage of hypertension,cardiovascular death,the mortality of coronary heart disease and stroke. two researchers searched online data of pubmed,embase and cochrane library databases and other related papers and manual retrieval conference papers. a prospective cohort study of relative risks and 95% cis about the comparison with ideal blood pressure,the pre-hypertension and the all-cause mortality or the death of cardiovascular that corrected a variety of risk factors. compared with ideal blood pressure,the corrected risk factors,the pre-hypertension couldn't increase the rr of the all caused mortality; but it could increase remarkably the mortality of cardiovascular,coronary heart disease and stroke,and there was a significant difference between the two later (p<0.001). compared with the ideal blood pressure,the pre-hypertension still increased the risk of death of cardiovascular disease and the death rate of the stroke was higher than coronary heart disease.