Association of marital status with takotsubo syndrome (broken heart syndrome) among adults in the United States

Table 1 Characteristics of participants according to case-control status, National Hospital Discharge Survey 2006-2010

Characteristics	Cases (n = 59)	AMI controls (n = 295)	P value2	Non-CVD controls (n = 295)	P values3
Age, (mean ± SD, yr)1	69.7 (11.4)	(69.8 (11.1)	-	69.7 (11.3)	-
Sex, female1	89.8%	89.8%	-	89.8%	-
Race			0.009		0.021
White	88.1%	67.1%		70.5%
Black	5.1%	16.3%		14.6%
Other	6.8%	16.6%		14.9%
Current smoker	15.3%	8.5%	0.104	17.3%	0.701
Type of insurance			0.424		0.537
Medicaid	8.5%	5.8%		5.8%
Private	22.0%	29.2%		27.8%
Medicare	69.5%	65.1%		66.4%
Health condition
Obese	6.8%	8.8%	0.597	5.1%	0.593
Hypertension	42.4%	50.5%	0.241	52.5%	0.133
Dyslipidemia	20.3%	15.9%	0.404	27.1%	0.272
Diabetes	15.3%	16.3%	0.845	17.6%	0.660
COPD	27.1%	16.3%	0.051	22.0%	0.390
Neurological disorders	6.8%	13.2%	0.178	13.2%	0.173
Psychiatric disorders	3.4%	7.1%	0.295	5.1%	0.577
Marital status			0.375		0.583
Married	39.0%	45.1%		42.7%
Not married	61.0%	54.9%		57.3 %

¹These variables are among the characteristics by which cases were matched to controls.

²P values for comparison of characteristics between cases and AMI controls.

³P values for comparison of characteristics between cases and non-CVD controls. AMI: Acute myocardial infarction; CI: Confidence interval; COPD: Chronic obstructive pulmonary disease; CVD: Cardiovascular disease.