Table 1.

General data of age and course of all patients.

	Age (year)	Course (year)
Lowest value	17	0.1
Highest value	74	20
Arithmetic mean	47.95	3.08
95% CI for the mean	44.9774 to 50.9304	2.1488 to 4.0078
Median	48.56	1
Shapiro-Wilk test for normal distribution	W=0.98	W=0.67
	Accept normality (P=0.3007)	Reject normality (P<0.0001)