From: Incremental value of left atrial booster and reservoir strain in predicting atrial fibrillation in patients with hypertrophic cardiomyopathy: a cardiovascular magnetic resonance study
HR (95% CI)
P value
Age ≥ 55 years
5.22 (2.12–12.83)
 < 0.001**
LA reservoir strain ≤ 18%
1.21 (0.44–3.32)
0.717
LA booster strain ≤ 8%
3.08 (1.43–6.64)
0.004**
LAEF ≤ 45%
1.73 (0.68–4.40)
0.252