Table 2.

Basic characteristics of the study participants.

	AVD only (n = 33)	AVD+ SFJD (n = 43)	Difference (p-value)
Sex	14 females 19 males	18 females, 25 males,	n.s
Age	45.9 ± 13.3	46.95 ± 14.9	n.s
Preexisting chronic disease	N = 9 *1	N ==10 ⁎2	n.s.
Onset of symptoms before hospitalization	5.70 ± 3.86	4.8 ± 2.61	n.s.

*1 chronic bronchitis (1), diabetes mellitus (2), renal insufficiency (1), pulmonal nodules (1), coronary heart disease (1), tuberculosis (1), arterial hypertension (2).

*2 diabetes mellitus (4), breast tumor (1), chronic nephrosis (1), arterial hypertension (4).