Table 2.
Cardiac volumes and dimensions (non-indexed)
| Cardiac morphometry | SGA (95% CI) | AGA (95% CI) | p Value |
|---|---|---|---|
| Left atrium | |||
| Left atrial area (cm2) | 15.8 (15.1 to 16.4) | 16.6 (16.1 to 17.0) | 0.01 |
| Left atrial volume (mL) | 41.1 (38.5 to 43.8) | 44.4 (42.6 to 46.2) | 0.01 |
| Left ventricle | |||
| Sphericity Index | 1.8 (1.8 to 1.8) | 1.8 (1.8 to 1.8) | 0.94 |
| End-diastolic diameter (mm) | 50.5 (49.6 to 51.4) | 50.8 (50.2 to 51.4) | 0.51 |
| End-systolic diameter (mm) | 34.6 (33.8 to 35.4) | 34.9 (34.4 to 35.5) | 0.40 |
| Base-to-apex length (mm) | 88.2 (86.9 to 89.5) | 89.4 (88.5 to 90.3) | 0.06 |
| Basal diameter (mm) | 49.3 (48.5 to 50.1) | 50.0 (49.5 to 50.6) | 0.07 |
| Interventricular septum (mm) | 6.9 (6.7 to 7.0) | 7.0 (6.9 to 7.1) | 0.07 |
| Posterior wall (mm) | 7.0 (6.8 to 7.1) | 7.2 (7.1 to 7.3) | 0.02 |
| End-diastolic volume (mL) | 115.0 (110.8 to 119.2) | 116.3 (113.5 to 119.2) | 0.52 |
| End-systolic volume (mL) | 44.6 (42.6 to 46.8) | 45.4 (44.0 to 46.9) | 0.42 |
| Mass (g) | 129.7 (124.1 to 135.2) | 134.7 (130.9 to 138.4) | 0.06 |
| Right atrium | |||
| Right atrial area (cm2) | 16.0 (15.4 to 16.6) | 17.1 (16.7 to 17.5) | <0.01 |
| Right atrial volume (mL) | 25.3 (23.5 to 27.1) | 26.5 (25.3 to 27.8) | 0.16 |
| Right ventricle | |||
| Sphericity Index | 2.2 (2.1 to 2.2) | 2.2 (2.2 to 2.2) | 0.61 |
| Base-to-apex length (mm) | 74.6 (73.2 to 76.1) | 76.1 (75.1 to 77.1) | 0.05 |
| Basal diameter (mm) | 34.5 (33.6 to 35.4) | 35.4 (34.7 to 36.0) | 0.04 |
| End-diastolic volume (mL) | 42.7 (40.0 to 45.6) | 46.0 (44.0 to 48.1) | 0.02 |
| End-systolic volume (mL) | 17.5 (16.4 to 18.8) | 18.7 (17.9 to 19.6) | 0.05 |
All data shown as means (95% CI) and adjusted for age, sex, blood pressure, physical activity levels and socioeconomic status.
AGA, appropriate birth weight for gestational age; SGA, small for gestational age. LV volumes calculated using Z-derived method; RV volumes using Simpson Single-Plane 4 chamber; LV mass using short-axis area-length method.