Risk factors of acute myocardial infarction in middle-aged and adolescent people (< 45 years) in Yantai

Table 1 Results of univariate analysis of the risk factors for first AMI

Variables	AMI	Non-AMI	χ²/t	P
Self-perceived stress (yes)	36	60	9.477	0.002
Physical inactivity	36	79	2.997	0.083
Sleep insufficience	52	100	9.13	0.003
Fatigue (yes)	40	79	5.863	0.016
Current smokers	95	193	18.495	<0.001
Alcohol consumption (yes)	61	150	2.617	0.106
Eating seafood and meanwhile drinking beer	71	98	35.947	<0.001
Family history of CHD	19	46	0.694	0.405
Obesity	42	89	11.064	0.004
Physical work	67	208	0.107	0.743
Low family income	23	84	2.586	0.274
Education (none)	43	98	3.758	0.153
Hypertension	49	86	11.766	0.001
Diabetes mellitus	23	34	7.894	0.005
Hypercholesterolaemia	42	83	6.186	0.013

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