Research Article

Higher Frequency of Undetected Acute Coronary Syndrome in Elderly Patients with Chest Pain Who Visited the Emergency Department: A Large-Cohort Retrospective Study

Table 2

Differences in the rates of revisiting and undetected ACS between the adult and elderly patient groups.

CharacteristicsAdult ()Elderly () value

Revisit within 30 d<0.001
 Single visit6,567 (91.4)1,735 (86.8)
 Multiple revisit619 (8.6)263 (13.2)
Diagnosis of ACS at ED revisit0.025
 ACS18 (2.9)16 (6.1)
 Not ACS601 (97.1)247 (93.9)

Values are expressed as number (%). ACS: acute coronary syndrome.