highly significantp < 0.001
This distribution was highly significant (χ 2 = 135.0, df = 1, p < 0.001).
This distribution was highly significant (χ 2 = 135.0, df = 1, p < 0.001).
Cardiac onset was less frequent in F64L (−2.8) compared with non‐F64L (+1.9); moreover, neurologic onset was more frequent in F64L (+1.9) and less common in non‐F64L (−1.3), although these last differences did not reach statistical significance.