Table 3.

Logistic regression analysis in subgroups.

Variables	Regression coefficient	Standard error	Wald x2 value	P-value	OR
Onset age	0.261	0.272	0.924	0.337	1.298
Gender	−0.322	0.275	1.366	0.243	0.725
Muscle involvement at onset	−0.629	0.320	3.857	0.050	0.533
Rs731236	1.046	0.372	7.914	0.005	2.847