Table 1.

Descriptive statistics of study participants.

Baseline DCL	DCL = 0	DCL = 1	DCL =2	DCL = 3
Number (percentage) of participants	351 (38.8%)	395 (43.6%)	119 (13.1%)	40 (4.4%)
Number (percentage) of females	211 (60.1%)	267 (67.6%)	74 (62.2%)	25 (62.5%)
Mean (standard deviation) of age	39.3 (9.8)	40.5 (9.8)	43.0 (10.8)	45.5 (10.7)
Median (range) of CAG repeat length	42 (38-50)	42 (38-52)	42 (38-51)	43 (39-51)
Median (range) of number of visits	5 (2-10)	5 (2-10)	6 (2-10)	5 (2-10)

DCL diagnostic confidence level, CAG cytosine-adenine-guanine