Table 1.

Clinical and demographic characteristics of recruited DM1 patients

Patients Enrolled	81
Drop-out	16
Final Sample	65
Age	46.1 ± 12.3 yrs
	Age range: 18–70 yrs
Sex	F = 37 % (24)
	M = 63 % (41)
Age at onset	31.5 ± 14.7 yrs
[CTG]n E1	37.7 % (25)
[CTG]n E2	58.5 % (38)
[CTG]n E3	3.8 % (2)
Transmission	78 % paternal
	22 % maternal
Educational level	Mean 11.6 ± 3.5 yrs
Time from disease onset	Mean 10.2 ± 7.4 yrs
Severity of muscular involvement (MIRS)	Mean = 2.85 ± 1
MIRS = 1	7.3 %
MIRS = 2	36.4 %
MIRS = 3	27.3 %
MIRS = 4	21.8 %
MIRS = 5	7.3 %