LVEDD and IVSD indexed by BSA reference values by BSA group
| Echo index measure (mm/m2) | Overall sample | BSA reference group | General population male norms2 | ||
| Below average | Average | Above average | |||
| 1.72–2.94 m2 | 1.72–2.05 m2 | 2.06–2.57 m2 | 2.58–2.94 m2 | ||
| LVEDD/BSA | |||||
| Normal | <27.2 | <29.3 | <26.3 | <22.8 | 22.0–30.0 |
| Mildly abnormal | 27.2–28.2 | 29.3–30.2 | 26.3–27.2 | 22.8–23.4 | 31.0–33.0 |
| Moderately abnormal | 28.3–29.5 | 30.3–31.4 | 27.3–28.2 | 23.5–24.2 | 34.0–36.0 |
| Severely abnormal | >29.5 | >31.4 | >28.2 | >24.2 | >36.0 |
| IVSD/BSA | |||||
| Normal | <5.4 | <5.8 | <5.3 | <4.8 | NA |
| Mildly abnormal | 5.4–5.6 | 5.8–6.1 | 5.3–5.6 | 4.8–5.0 | NA |
| Moderately abnormal | 5.7–5.9 | 6.2–6.4 | 5.7–5.8 | 5.1–5.2 | NA |
| Severely abnormal | >5.9 | >6.4 | >5.8 | >5.2 | NA |
Normal: <95th percentile or Z<1.6.
Mildly abnormal: 95th–98th percentile or 1.6<Z<2.0.
Moderately abnormal: 98th–99th percentile or 2.0<Z<2.5.
Severely abnormal: >99th percentile or Z>2.5.
BSA, body surface area; IVSD, interventricular septum diameter; LVEDD, left ventricular end-diastole diameter; NA, not available.