Analysis of epidemiological characteristics and psychopsychological factors of arrhythmia in the elderly

Table 1 Epidemiological characteristics of arrhythmia in 169 elderly individuals

Characteristic	Research group (n = 87)	Control group (n = 82)	χ2/t	P value
Age (years)	70.22 ± 5.95	66.91 ± 4.21	4.143	< 0.0001
Sex	-	-	0.705	0.401
Male	47	39	-	-
Female	40	43	-	-
BMI (kg/m2)	23.46 ± 2.12	23.55 ± 1.95	0.310	0.757
Coronary heart disease	-	-	9.833	0.002
With	61	38	-	-
Without	26	44	-	-
Hypertension	-	-	7.987	0.005
With	56	35	-	-
Without	31	47	-	-
Diabetes	-	-	0.389	0.533
With	32	34	-	-
Without	55	48	-	-
Smoking	-	-	6.314	0.012
With	60	41	-	-
Without	27	41	-	-
Drinking	-	-	0.337	0.562
With	41	35	-	-
Without	46	47	-	-
Secondhand smoke exposure	-	-	9.079	0.003
With	65	43	-	-
Without	22	39	-	-
Residence	-	-	4.232	0.040
Rural	53	37	-	-
Urban	34	45	-	-

BMI: Body mass index.