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. Author manuscript; available in PMC: 2024 Apr 14.
Published in final edited form as: Med. 2023 Mar 29;4(4):252–262.e3. doi: 10.1016/j.medj.2023.02.009

Table 2.

Risk of incident cardiomyopathy and related outcomes associated with increased sphericity index.

Cardiomyopathy Atrial fibrillation Heart failure Cardiac arrest
HR (95% CI) P HR (95% CI) P HR (95% CI) P HR (95% CI) P
Model 1
Age, sex
1.57 (1.27-1.94) <0.001 1.35 (1.28-1.42) <0.001 1.37 (1.24-1.53) <0.001 1.17 (0.88-1.54) 0.3
Model 2
Model 1 + BMI, pulse rate, HTN, DM, prior MI
1.62 (1.30-2.03) <0.001 1.31 (1.23-1.38) <0.001 1.23 (1.10-1.38) <0.001 1.08 (0.81-1.44) 0.6
Model 3a
Model 2 + LVEF
1.51 (1.13-2.02) 0.005 1.23 (1.15-1.32) <0.001 1.11 (0.96-1.28) 0.2 1.01 (0.73-1.41) 0.9
Model 3b
Model 2 + LVEDVi
1.46 (1.09-1.97) 0.01 1.19 (1.11-1.28) <0.001 1.13 (0.97-1.31) 0.1 0.94 (0.67-1.34) 0.7
Model 3c
Model 2 + LVESVi
1.47 (1.09-1.97) 0.01 1.19 (1.11-1.28) <0.001 1.09 (0.94-1.26) 0.3 0.92 (0.65-1.31) 0.7
Model 4
Model 2 + LVEF, LVESVi
1.47 (1.10-1.98) 0.01 1.20 (1.11-1.28) <0.001 1.09 (0.94-1.26) 0.3 0.92 (0.65-1.31) 0.7

Hazard ratios (HR) reported per 1 standard deviation increase in sphericity index.

BMI = body mass index, HTN = hypertension, DM = diabetes mellitus, MI = myocardial infarction, LVEF = left ventricular ejection fraction, LVEDVi = left ventricular end-diastolic volume indexed on body surface area, LVESVi = left ventricular end-systolic volume indexed on body surface area