Figure 4. Right ventricular (RV) function became impaired with age.

A, RV ejection fraction decreased with age (slope = −1.2% year⁻¹, P = 2 × 10⁻⁵). B, congruent findings were noted in RV wall thickening fraction (slope = −1% year⁻¹, P = 0.008). No sex effects were measured.