Table 1.

Clinical characteristics of SCD cases and controls.

Characteristic	SCD (N = 79)	SCD matched controls (N = 313)
Sex, No.
Male	72	281
Female	7	32
Age, years old, mean ± SD (range)
Overall	49.87 ± 13.58 (19–79)	49.12 ± 10.15 (25–78)
Males	48.96 ± 12.41 (19–77)	48.75 ± 10.05 (25–78)
Females	59.29 ± 21.48 (27–79)	60.77 ± 12.54 (38–70)
Events at sudden death, No.
Sleep	11
Nonspecific	42
Exertion	2
Stress	24
Symptoms before sudden death, No.
None	52
Others	27
Megalothymus, No.
Positive	2
Negative	77

SCD: Sudden cardiac death