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 3

Comparison of the characteristics of patients with undetected acute coronary syndrome at the index visit.

Adult ()Elderly () value

Age (years)<0.001
Sex<0.001
 Male15 (83.3)7 (43.7)
 Female3 (16.7)9 (56.3)
Mental status
 Alert18 (100.0)16 (100.0)
Vital sign
 Mean ABP0.942
 Pulse rate0.157
 Respiratory rate0.970
 Body temperature (°C)0.035
KTAS0.347
 Level 210 (55.6)8 (50.0)
 Level 35 (27.8)7 (43.7)
 Level 43 (16.7)0 (0.0)
 Level 50 (0.0)1 (6.3)
Diagnosis0.874
 Not specific, diagnosed16 (83.3)13 (81.2)
  Chest pain, unspecified9 (50.0)9 (56.2)
  Others6 (33.3)4 (25.0)
 Gastrointestinal diseases3 (16.7)3 (18.8)
  Acute gastritis3 (16.7)2 (12.5)
  Gastroenteritis0 (0.0)1 (6.3)
Disposition0.282
 Discharged18 (100.0)15 (93.7)
  Symptoms improved14 (77.8)13 (81.2)
  Against medical advice4 (22.2)2 (12.5)
 Admission0 (0.0)1 (6.3)
  General ward0 (0.0)1 (6.3)
Length of ED stay (min)166.5 (129.3–214.3)324.3 (203.0–518.2)<0.001

Values are expressed as number (%), , or median (range) as appropriate. Geometric mean with 95% confidence interval. KTAS: Korean Triage and Acuity Scale; ED: emergency department.