02025nas a2200385 4500008004100000022001400041245009400055210006900149260001300218300001100231490000600242520098000248653000901228653003001237653002101267653002601288653001101314653002001325653001101345653001401356653002501370653000901395653002801404653002001432653001801452100001501470700002201485700001501507700001501522700001601537700001801553700001701571700001501588856003601603 1995 eng d a1047-279700aSurveillance and ascertainment of cardiovascular events. The Cardiovascular Health Study.0 aSurveillance and ascertainment of cardiovascular events The Card c1995 Jul a278-850 v53 a
While previous prospective multicenter studies have conducted cardiovascular disease surveillance, few have detailed the techniques relating to the ascertainment of and data collection for events. The Cardiovascular Health Study (CHS) is a population-based study of coronary heart disease and stroke in older adults. This article summarizes the CHS events protocol and describes the methods of surveillance and ascertainment of hospitalized and nonhospitalized events, the use of medical records and other support documents, organizational issues at the field center level, and the classification of events through an adjudication process. We present data on incidence and mortality, the classification of adjudicated events, and the agreement between classification by the Events Subcommittee and the medical records diagnostic codes. The CHS techniques are a successful model for complete ascertainment, investigation, and documentation of events in an older cohort.
10aAged10aCerebrovascular Disorders10aCoronary Disease10aEpidemiologic Methods10aFemale10aHospitalization10aHumans10aIncidence10aLongitudinal Studies10aMale10aPopulation Surveillance10aQuality Control10aUnited States1 aIves, D, G1 aFitzpatrick, A, L1 aBild, D, E1 aPsaty, B M1 aKuller, L H1 aCrowley, P, M1 aCruise, R, G1 aTheroux, S uhttps://chs-nhlbi.org/node/1450