Comparison of the outcomes of EMS vs. Non-EMS transport of patients with ST-segment elevation myocardial infarction (STEMI) in Southern Iran: a population-based study

Table 1 Clinical and demographic characteristics of the study population

Variable	All		EMS		Non-EMS		P-value
Variable	N	%	N	%	N	%	P-value
Gender
Male	1552	69.16	546	58.45	815	62.21	0.975
Female	672	29.94	388	41.54	495	37.88	0.975
Marital status
Marred	1278	56.95	624	48.82	654	51.17	0.141
Single	669	29.81	312	46.63	357	53.36
Divorced	198	8.82	119	60.10	79	39.89
other	99	4.41	68	68.68	31	31.31
Smoking history
Never	1427	63.59	611	42.81	816	57.18	0.702
Ex- Smoker	162	7.21	82	50.61	80	49.38
Current smoker	655	29.18	346	52.82	309	47.17
Opium abuse
Never	1526	68	676	44.29	850	55.70	0.354
Ex-consumer	119	5.30	65	54.62	54	45.37
Current consumer	599	26.39	299	49.91	300	50.08
Water pipe
Never	2155	96	981	45.52	1174	54.47	0.141
Ex-consumer	29	1.29	13	44.82	16	55.17
Current consumer	60	2.67	28	46.66	32	53.33
Comorbidities
hyperlipidemia	627	27.94	259	41.30	368	58.69	0.517
Diabetes mellitus	560	24.95	227	40.53	333	59.46	0.432
hypertension	1040	46.34	449	43.17	591	56.82	0.891
Presenting symptom
Cold sweating	1192	52.1	581	55.0	611	49.0	0.271
Epigastric pain	378	16.05	147	14.1	231	18.0	0.147
Chest pain	1952	85	924	88.0	1028	82.0	˂0.001
Shoulder pain	712	31.0	325	31.0	387	31.0	˂0.001
Jaw pain	163	7.0	75	7.0	88	7.1	˂0.001
ECG change (Dysrhythmia)	74	3.0	25	2.0	49	3.0	.038
Back pain	426	18.0	210	20.0	216	17.0	.092
Syncope	31	1.0	20	1.0	11	0.0	0. 34
Diaphoresis	679	29.0	349	33.0	330	26.0	0.17
Breathlessness	838	36	420	40.0	418	33.0	.001

ISSN: 1471-227X