. Author manuscript; available in PMC: 2017 Sep 1.

Published in final edited form as: Emerg Med J. 2016 Apr 28;33(9):626–631. doi: 10.1136/emermed-2015-205473

Table 1.

Sample characteristics.

Sample characteristics	Mean ± SD
Age	59 ± 12
Women, N (%)	89 (52)
Confirmed ACS diagnosis, N (%)	158 (33)
- Unstable angina, N (% of ACS)	94 (60)
- Non-ST elevation MI, N (% of ACS)	64 (40)
Non-ACS Diagnoses Adjudicated
Cardiac, non-ACS (e.g., hypertensive urgency, atrial fibrillation)	53 (11)
Non-cardiac, musculoskeletal	62 (13)
Non-cardiac, anxiety	14 (3)
Non-cardiac, gastrointestinal	43 (9)
Non-cardiac, toxic substance (e.g., cocaine)	4 (1)
Non-cardiac, not otherwise specified	122 (26)
Non-cardiac, other (e.g., pneumonia, pulmonary embolism)	18 (4)
GRACE score	91 ± 29
Charlson Comorbidity Index	2 ± 2
Perceived threat in the ED^a	7.5 ± 5.3
ASDS^b	31 ± 13
IPC Survey clinician-patient communication^c	71 ± 10

Note: ACS: acute coronary syndrome; GRACE: Global Registry of Acute Coronary Events; ASD: Acute Stress Disorder Scale; IPC: Interpersonal Processes of Care; MI: myocardial infarction