total mortality and cardiovascular disease ( cvd ) mortality and morbidity during 10 years of follow-up in relation to systolic blood pressure ( sbp ) at entry were compared between a random sample of 7455 men , aged 47-54 years at entry , in whom multifactorial risk-factor intervention including intense efforts to detect and treat hypertension had been performed [ the primary prevention trial ( ppt ) ] , and a similar population ( from an observational study ) in which intervention , on cvd risk factors was kept to a minimum ( the study of men born in 1913 ) .
C0007222
cardiovascular disease
C0012634
cvd