Table 1.

The number of patients, male/female, the age, the age at the onset, and the duration from the onset

From the onset	Number	Male/female	Age	Age at onset	Duration from onset (Years)
5 years or less	135	61/74	69.2 ± 10.0	66.2 ± 10.0	3.49 ± 1.30
6–10 years	158	61/97	69.7 ± 9.1	62.6 ± 9.2	7.86 ± 1.37
11–15 years	114	56/58	70.3 ± 8.3	58.4 ± 8.4	12.43 ± 1.27
16–20 years	53	26/27	70.9 ± 9.2	53.8 ± 8.9	17.58 ± 1.51
21 years or more	38	18/20	70.7 ± 9.5	43.4 ± 12.7	27.79 ± 6.84
Total	498	222/276	69.9 ± 9.3	60.2 ± 11.3	10.28 ± 7.05

Mean ± standard deviation