Table 3.
The mean, standard deviations and ranges of OEAC measurements in different age groups
| Site | Age Group | Annulus | Outer | Mid | |||
|---|---|---|---|---|---|---|---|
| Mean (SD) | Range | Mean (SD) | Range | Mean (SD) | Range | ||
| Max SI | <5 years | 8.03 (1.6) | 5.4–10.1 | 8.23 (1.53) | 5.5–10.3 | 8.23 (1.3) | 6.3–10.5 |
| 5–8 years | 9.01 (1.27) | 7.1–11.8 | 9.87 (1.82) | 7.5–14.5 | 9.28 (1.47) | 7.1–12.5 | |
| 9–12 years | 9.73 (1.09) | 6.9–11.9 | 10.91 (1.52) | 8.8–13.7 | 10.2 (1.13) | 8.0–12.5 | |
| 13–18 years | 10.21 (1.66) | 7.6–14.3 | 11.21 (2.51) | 7.4–17.1 | 10.53 (1.8) | 7.4–13.9 | |
| >18 years | 9.85 (1.47) | 7.1–16.2 | 12.05 (1.82) | 7.4–16.0 | 10.84 (1.48) | 8.0–15.6 | |
| All Ages | 9.71 (1.49) | 5.4–16.2 | 11.40 (2.11) | 5.5–17.1 | 10.44 (1.62) | 6.3–15.6 | |
| MidA | <5 years | 6.98 (1.56) | 4.2–9.1 | 6.93 (1.38) | 4.3–8.3 | 7.16 (1.11) | 5.1–8.3 |
| 5–8 years | 7.61 (1.05) | 6.2–10.6 | 8.38 (1.83) | 5.6–13.2 | 7.92 (1.44) | 6.0–11.5 | |
| 9–12 years | 8.2 (1.06) | 5.2–9.5 | 8.80 (1.23) | 6.6–11.5 | 8.41 (1.18) | 5.4–10.4 | |
| 13–18 years | 8.99 (1.63) | 6.1–12.4 | 9.84 (2.21) | 6.3–15.2 | 9.27 (1.61) | 6.2–12.2 | |
| >18 years | 8.22 (1.35) | 5.9–13.9 | 9.78 (1.76) | 6.2–14.2 | 8.72 (1.5) | 1.2–12.9 | |
| All Ages | 8.20 (1.39) | 4.2–13.9 | 9.40 (1.90) | 4.3–15.2 | 8.61 (1.54) | 1.2–12.9 | |
| MidP | <5 years | 6.65 (1.38) | 4.1–8.5 | 6.88 (1.32) | 4.4–8.4 | 6.91 (1.24) | 4.8–8.9 |
| 5–8 years | 7.60 (1.06) | 5.6–10.3 | 8.27 (1.84) | 5.7–14.1 | 7.82 (1.48) | 5.6–11.8 | |
| 9–12 years | 7.57 (1.07) | 5.0–9.6 | 8.78 (1.29) | 6.2–11.4 | 8.34 (1.09) | 5.8–9.8 | |
| 13–18 years | 8.68 (1.39) | 5.9–11.8 | 9.56 (2.26) | 5.8–14.6 | 9.03 (1.58) | 6.3–12.5 | |
| >18 years | 7.99 (1.33) | 5.2–13.1 | 9.89 (1.74) | 6.2–13.8 | 8.76 (1.5) | 1.8–13.5 | |
| All Ages | 7.94 (1.33) | 4.1–13.1 | 9.41 (1.92) | 4.4–14.6 | 8.57 (1.55) | 1.8–13.5 | |
| MaxAP | <5 years | 5.40 (0.94) | 3.9–6.5 | 5.50 (1.09) | 3.5–6.6 | 5.42 (1.32) | 3.7–7.0 |
| 5–8 years | 5.42 (1.03) | 3.8–7.8 | 5.91 (1.12) | 3.8–8.0 | 5.64 (1.08) | 3.5–7.8 | |
| 9–12 years | 6.40 (0.95) | 5.1–8.8 | 6.83 (0.83) | 5.0–8.8 | 6.54 (0.75) | 5.0–8.1 | |
| 13–18 years | 6.37 (1.04) | 4.1–8.2 | 6.88 (1.23) | 4.6–9.6 | 6.55 (1.04) | 4.4–8.3 | |
| >18 years | 6.42 (1.01) | 3.6–9.1 | 7.61 (1.06) | 4.5–10.5 | 6.99 (1.07) | 4.0–10.6 | |
| All Ages | 6.24 (1.07) | 3.6–9.1 | 7.13 (1.20) | 3.5–10.5 | 6.65 (1.15) | 3.5–10.6 | |
| Mid S | <5 years | 4.66 (0.92) | 3.2–5.6 | 4.84 (0.87) | 3.1–5.6 | 4.37 (1.01) | 3.2–6.0 |
| 5–8 years | 4.69 (1.08) | 2.8–7.1 | 5.24 (1.09) | 3.3–7.4 | 4.97 (1.04) | 3.4–7.3 | |
| 9–12 years | 5.5 (0.89) | 3.8–8.3 | 6.0 (0.84) | 4.3–7.8 | 5.82 (0.81) | 3.9–7.6 | |
| 13–18 years | 5.70 (1.06) | 3.3–7.4 | 6.23 (1.19) | 4.1–8.8 | 5.84 (0.97) | 3.9–7.5 | |
| >18 years | 5.43 (0.96) | 3.1–7.7 | 6.79 (0.95) | 4.1–9.1 | 6.15 (0.96) | 3.7–8.9 | |
| All Ages | 5.35 (1.03) | 2.8–8.3 | 6.36 (1.16) | 3.1–9.1 | 5.86 (1.06) | 3.2–8.9 | |
| Mid I | <5 years | 4.48 (0.94) | 3.1–5.8 | 4.72 (1.0) | 2.8–5.7 | 4.42 (1.21) | 3.0–6.6 |
| 5–8 years | 4.63 (0.92) | 3.1–7.0 | 5.05 (1.07) | 3.3–7.1 | 4.69 (1.05) | 3.1–7.5 | |
| 9–12 years | 5.34 (0.96) | 4.1–7.4 | 5.7 (0.81) | 3.6–7.5 | 5.41 (0.84) | 3.5–7.3 | |
| 13–18 years | 5.57 (0.99) | 3.7–7.2 | 6.10 (1.18) | 3.9–8.8 | 5.75 (0.98) | 3.8–7.5 | |
| >18 years | 5.52 (0.91) | 3.2–8.1 | 6.39 (1.01) | 3.8–9.4 | 5.89 (0.96) | 3.6–9.1 | |
| All Ages | 5.35 (0.98) | 3.1–8.1 | 6.06 (1.14) | 2.8–9.4 | 5.81 (1.07) | 3.0–9.1 | |