A Retrospective Study: Quick Scoring of Symptoms to Estimate the Risk of Cardiac Arrest in the Emergency Department

Table 2

Epidemiological and clinical characteristics of the study patients.

	N-CA (n = 450)	CA (n = 150)	χ^2/z
Gender			34.593	<0.001
Female	208 (46.33%)	111 (74%)
Male	241 (53.67%)	39 (26%)
Age	51 (32, 69)	66 (51, 78)	−5.946	<0.001
Cerebrovascular diseases	137 (33.58%)	73 (54.89%)	19.177	<0.001
Coronary heart disease	45 (13.85%)	44 (38.6%)	31.986	<0.001
Heart failure	8 (2.62%)	18 (17.48%)	28.469	<0.001
Hypertension	119 (33.62%)	70 (57.85%)	22.108	<0.001
Respiratory disease	6 (1.99%)	10 (9.9%)	10.445	0.001
Asthma	6 (1.98%)	7 (6.86%)	4.389	<0.001
Chronic renal diseases	11 (3.58%)	18 (17.14%)	21.985	<0.001
Hyperlipidemia	18 (5.77%)	20 (19.05%)	16.724	<0.001
Diabetes mellitus	60 (18.24%)	40 (35.4%)	14.15	<0.001
Other disease	38 (12.62%)	32 (32%)	19.556	<0.001
Smoking history	1 (0.33%)	19 (19%)	51.504	<0.001
Drinking history	1 (0.33%)	14 (13.86%)	34.982	<0.001
Symptoms	280 (65.57%)	90 (60.81%)	1.087	0.297
Chest pain	39 (8.67%)	5 (3.33%)	4.709	0.03
Dyspnea	36 (8%)	48 (32%)	53.821	<0.001
Palpitation	18 (4%)	4 (2.67%)	0.566	0.452
Abdominal pain	69 (15.3%)	4 (2.67%)	16.891	<0.001
Backache	15 (3.33%)	4 (2.67%)	0.018	0.893
Syncope	3 (0.7%)	5 (3.3%)	6.081	0.026
Cold sweat	2 (0.4%)	13 (8.7%)	31.202	<0.001
Chest tightness	19 (6.23%)	12 (11.43%)	3.021	0.082
Nausea	23 (7.49%)	10 (9.62%)	0.474	0.491
Vomit	29 (9.42%)	15 (14.02%)	1.775	0.183
Altered level of consciousness	2 (0.66%)	6 (6%)	8.408	0.004
Dizziness	43 (13.78%)	10 (9.9%)	1.027	0.311
Seizure	0 (0%)	5 (5%)	11.45	0.001
Other symptoms	0 (0%)	4 (3.88%)	8.177	0.004

a patient may have more than one symptom at the same time.