Table 5.
Linear regression of echocardiographic parameters on the Sokolow-Lyon index within considered BMI categories, and respective interaction analyses
| BMI (kg/m2) | Adjusted betaa, b (95 % CI) | p | p (interaction)* | |
|---|---|---|---|---|
| LVMI (g/m2) | < 25 | 5.85 (1.58–10.12) | 0.0074 | |
| 25–29.9 | 7.54 (3.56–11.51) | 0.0002 | 0.0470 | |
| ≥ 30 | 11.65 (6.24–17.06) | <0.0001 | ||
| LVIDd (cm/m2) | < 25 | 0.04 (0.00–0.09) | 0.0534 | |
| 25–29.9 | 0.10 (0.06–0.13) | <0.0001 | 0.4554 | |
| ≥ 30 | 0.07 (0.03–0.11) | 0.0005 | ||
| PWTd (cm) | < 25 | 0.01 (−0.01–0.04) | 0.2290 | |
| 25–29.9 | 0.01 (−0.01–0.03) | 0.4673 | 0.4659 | |
| ≥ 30 | 0.02 (0–0.05) | 0.0725 | ||
| SWTd (cm) | < 25 | 0.01 (−0.01–0.03) | 0.4774 | |
| 25–29.9 | −0.01 (−0.03–0.01) | 0.5528 | 0.8480 | |
| ≥ 30 | 0.02 (−0.01–0.04) | 0.2478 |
LVMI left-ventricular mass index, LVIDd left-ventricular internal diameter at end-diastole index, PWTd left-ventricular posterior wall thickness at end-diastole, SWTd septal wall thickness at end-diastole, 95 % CI 95 % confidence interval
*p-value of the multiplicative interaction of the SLI with considered BMI classes
aadjusted for age and sex only
bBeta gives the increase of the respective echocardiographic parameter per mV increase of the SLI