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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Muscle Nerve. 2012 Oct;46(4):482–489. doi: 10.1002/mus.23402

Table 1.

Demographics by mutation subtype.

Demographics Normal * Chloride Sodium DM2 No Identified Mutation
n 17 30 31 6 24
age (mean) 40.9 38.6 47.3 55 46.3
age (range) 21–62 16–65 12–79 40–73 24–72
gender Female (%) 8(47.1) 7 (23.3) 15 (48.4) 3 (50.0) 17 (70.8)

DM2 = myotonic dystrophy type 2.

*

The normal values are taken from Logigian, E. L., C. L. Blood, et al. (2005). “Quantitative analysis of the “warm-up” phenomenon in myotonic dystrophy type 1.” Muscle Nerve 32(1): 35–42.