Table 6: Relation between myotonia and pain in DM

	Myotonia
	None (N = 12)	Mild (N = 45)	Severe (N = 13)	p
Intensity of pain in the previous week 1	13.8 (±19.8)	33.6 (±30.2)	31.5 (±29.0)	0.106
Current pain2	5 (41.7%)	28 (62.2%)	7 (53.8%)	0.429
Level of pain (1 - no pain, 10 - the worst possible pain)1
Worst pain in the last 24 hours	1.8 (±1.3)	3.8 (±2.7)	3.5 (±2.7)	0.062
Least pain in the last 24 hours	1.8 (±1.5)	2.1 (±1.5)	2.2 (±2.1)	0.776
Average pain in the last 24 hours	1.8 (±1.3)	2.9 (±2.0)	3.0 (±2.2)	0.180
Pain at the moment	1.6 (±0.9)	2.7 (±2.1)	2.4 (±1.9)	0.207

 

¹The variables are described in terms of average (± SD); difference between groups tested by ANOVA.

²The variable is described in terms of absolute and relative frequencies; difference between groups tested by chi-square test of maximum likelihood.