Table 2.
End Pointa | Treatment | Baseline | 12 mo | Treatment Difference Between Groupsf |
---|---|---|---|---|
EF (%) | Control | 58.7±8.5 | 57.6±8.5 | 1.5 (−4.3 to 7.3) |
Intervention | 57.4±15.3 | 61.0±18.4 | ||
LV mass (g) | Control | 140.3±48.7 | 141.3±48.7 | −15.6 (−29.4 to −1.9) |
Intervention | 157.9±50.5 | 145.6±50.5 | ||
LV mass indexed to BSA (g/m2) | Control | 72.4±21.7 | 73.5±31.7 | −8.1 (−15.5 to −0.8) |
Intervention | 80.7±17.8 | 75.0±26.5 | ||
Global peak systolic strain (%)b | Control | −16.3±3.7 | −13.0±6.9 | −3.3 (−6.5 to −0.2) |
Intervention | −15.9±4.6 | −15.9±7.6 | ||
Global peak systolic strain rate (s−1)c | Control | −0.97±0.2 | −0.87±0.21 | −0.2 (−0.3 to −0.08) |
Intervention | −1.02±0.3 | −1.03±0.25 | ||
Global peak diastolic strain rate (s−1)d | Control | 1.05±0.3 | 0.90±0.42 | 0.18 (0.02 to 0.34) |
Intervention | 1.12±0.4 | 1.00±0.41 | ||
LV end-diastolic volume (ml) | Control | 150.3±37 | 156.1±37 | −23.8 (−44.7 to −2.9) |
Intervention | 162.9±39.8 | 144.5±39.8 | ||
LV end-diastolic volume indexed to BSA (ml/m2) | Control | 78.8±21.2 | 75.6±31.2 | −12.4 (−23.2 to −1.5) |
Intervention | 83.5±27 | 73.3±29.1 | ||
Aortic distensibility (mmHg−1×10−3)e | Control | 4.4±2.6 | 2.1±2.6 | 1.8 (0.1 to 3.6) |
Intervention | 3.4±2.5 | 3.1±2.5 |
EF, left ventricular ejection fraction; LV, left ventricle; BSA, body surface area.
Mean±SD of observed values were adjusted using a linear mixed-effects model for study center, age, sex, and diabetes status.
Systolic strain values are conventionally expressed on a negative scale as a percentage change in LV length from baseline, with more negative changes denoting better systolic function.
Systolic strain rate values are expressed on a negative scale, with more negative changes denoting better systolic function.
Diastolic strain rate values are a measure of diastolic function, with greater values denoting better function.
Aortic distensibility data were skewed and therefore logarithmically transformed values were used, with coefficients back-transformed for presentation.
Treatment effects are expressed as mean (95% CI) and were determined by the interaction of treatment group with time.