Table 2.
Decade | 20s | 30s | 40s | 50s | 60s | 70s | Total | |
---|---|---|---|---|---|---|---|---|
Anterior wall | T10 | 27.4±2.2 | 27.6±2.0 | 27.4±1.9 | 27.1±2.3 | 26.3±1.8 | 26.3±2.1 | 27.0±2.1 |
T11 | 28.2±2.2 | 28.4±2.1 | 28.3±2.4 | 27.5±2.1 | 26.7±2.1 | 27.1±2.2 | 27.7±2.3 | |
T12 | 29.2±2.5 | 29.8±1.9 | 29.5±2.5 | 28.8±1.9 | 28.3±2.3 | 28.6±2.4 | 29.0±2.3 | |
L1 | 30.7±2.2 | 31.1±2.1 | 31.2±2.3 | 30.6±2.0 | 29.6±2.1 | 29.9±2.8 | 30.5±2.3 | |
L2 | 33.0±2.1 | 33.3±2.1 | 33.5±2.2 | 32.4±2.1 | 31.3±2.3 | 31.6±3.2 | 32.5±2.5 | |
L3 | 34.0±2.3 | 34.7±1.9 | 34.5±2.4 | 33.8±2.5 | 32.7±2.8 | 32.6±2.4 | 33.7±2.5 | |
L4 | 33.9±1.9 | 34.4±2.2 | 34.5±2.4 | 33.9±2.2 | 32.9±2.6 | 32.0±3.2 | 33.6±2.6 | |
L5 | 34.9±2.4 | 35.7±2.4 | 35.2±2.6 | 34.5±3.1 | 33.7±2.8 | 33.1±2.9 | 34.5±2.8 | |
Center | T10 | 26.4±1.9 | 26.3±2.0 | 26.6±1.8 | 26.2±2.0 | 25.6±1.7 | 25.9±1.7 | 26.2±1.9 |
T11 | 28.1±2.0 | 28.2±1.8 | 28.0±2.0 | 27.6±1.9 | 27.3±1.6 | 27.3±1.8 | 27.7±1.9 | |
T12 | 30.0±2.1 | 30.6±1.8 | 30.1±2.2 | 29.5±1.8 | 29.1±1.7 | 29.3±1.8 | 29.8±2.0 | |
L1 | 31.8±2.0 | 32.1±1.7 | 32.1±1.9 | 31.5±1.9 | 30.7±1.6 | 30.8±2.2 | 31.5±2.0 | |
L2 | 32.4±1.8 | 32.7±1.6 | 33.0±2.1 | 31.9±2.1 | 31.1±1.8 | 32.1±2.5 | 32.2±2.1 | |
L3 | 32.8±1.8 | 33.2±1.8 | 33.3±2.3 | 32.6±2.4 | 31.9±2.1 | 32.2±2.3 | 32.7±2.2 | |
L4 | 33.2±1.7 | 33.6±1.6 | 33.5±2.5 | 32.7±2.5 | 31.9±2.6 | 32.3±2.7 | 32.9±2.4 | |
L5 | 32.5±2.3 | 33.3±2.1 | 32.3±3.0 | 31.9±3.1 | 31.0±2.6 | 31.6±2.6 | 32.1±2.7 | |
Posterior wall | T10 | 28.4±2.1 | 29.1±2.1 | 28.6±2.3 | 28.4±2.1 | 28.1±2.1 | 27.9±2.2 | 28.4±2.2 |
T11 | 30.9±2.3 | 31.3±2.3 | 30.9±2.4 | 30.6±2.4 | 30.3±2.3 | 30.4±2.6 | 30.7±2.4 | |
T12 | 33.3±2.3 | 33.7±2.4 | 33.7±2.4 | 33.2±1.9 | 32.8±2.5 | 32.9±2.4 | 33.3±2.3 | |
L1 | 35.2±2.0 | 35.7±2.1 | 35.8±2.4 | 35.1±2.1 | 34.6±2.0 | 35.4±2.1 | 35.3±2.2 | |
L2 | 35.5±2.0 | 35.7±2.1 | 36.1±2.4 | 34.9±2.2 | 34.6±2.0 | 35.6±2.5 | 35.4±2.2 | |
L3 | 35.2±2.0 | 35.2±2.0 | 35.4±2.5 | 34.7±2.3 | 34.0±2.4 | 34.1±3.1 | 34.8±2.5 | |
L4 | 33.4±2.0 | 33.7±2.0 | 33.9±2.5 | 33.2±2.2 | 32.5±2.2 | 32.3±3.3 | 33.2±2.5 | |
L5 | 31.2±2.5 | 31.7±1.8 | 30.8±2.9 | 30.3±3.2 | 30.4±2.7 | 30.0±2.8 | 30.7±2.8 |
Values given are means±standard deviation unless otherwise specified.