Values for bony interorbital distances by age group and sex
| Age Group (No. Scans Per Group) | IO Distance, Mean ± Standard Deviation, mm | P | ||
|---|---|---|---|---|
| All | Males | Females | ||
| 0–3 months (76) | 16.4 ± 1.9 | 16.5 ± 2.1 | 16.1 ± 1.8 | .39 |
| >3–6 months (41) | 18.2 ± 2.0 | 18.4 ± 2.6 | 18.0 ± 1.3 | .57 |
| >6–9 months (40) | 17.7 ± 2.1 | 19.5 ± 2.4 | 17.2 ± 1.8 | .07 |
| >9–12 months (30) | 18.1 ± 2.0 | 18.1 ± 1.6 | 17.9 ± 2.6 | .79 |
| >12–15 months (25) | 18.8 ± 2.2 | 18.9 ± 2.0 | 18.5 ± 2.5 | .66 |
| >15–18 months (14) | 18.5 ± 2.3 | 18.2 ± 1.6 | 18.7 ± 2.7 | .67 |
| >18–21 months (21) | 19.1 ± 2.8 | 19.2 ± 2.0 | 19.0 ± 3.7 | .90 |
| >21–24 months (12) | 18.6 ± 1.4 | 19.1 ± 1.6 | 18.1 ± 1.7 | .22 |
| >2–3 years (49) | 19.3 ± 2.1 | 20.0 ± 2.0 | 18.3 ± 1.8 | <.01 |
| >3–4 years (36) | 19.8 ± 2.3 | 19.8 ± 2.4 | 19.8 ± 2.3 | .94 |
| >4–5 years (42) | 20.4 ± 2.6 | 20.1 ± 2.0 | 20.8 ± 3.3 | .37 |
| >5–6 years (41) | 20.5 ± 2.4 | 20.7 ± 2.3 | 20.3 ± 2.7 | .69 |
| >6–7 years (36) | 22.3 ± 2.4 | 22.9 ± 2.8 | 21.9 ± 2.0 | .25 |
| >7–8 years (29) | 22.5 ± 3.0 | 22.2 ± 2.8 | 21.1 ± 3.3 | .43 |
| >8–9 years (26) | 22.2 ± 2.1 | 22.8 ± 2.1 | 21.1 ± 1.7 | .04 |
| >9–10 years (30) | 23.1 ± 2.5 | 24.1 ± 2.1 | 21.7 ± 2.3 | <.01 |
| >10–11 years (31) | 23.1 ± 2.0 | 22.9 ± 2.4 | 23.3 ± 1.2 | .66 |
| >11–12 years (33) | 22.8 ± 2.3 | 23.0 ± 2.7 | 22.4 ± 1.6 | .48 |
| >12–13 years (32) | 24.3 ± 3.5 | 24.6 ± 3.6 | 23.6 ± 3.7 | .49 |
| >13–14 years (42) | 24.2 ± 3.3 | 23.9 ± 3.1 | 24.4 ± 3.5 | .64 |
| >14–15 years (43) | 24.6 ± 3.1 | 24.8 ± 3.2 | 24.1 ± 2.8 | .48 |
| >15–16 years (69) | 24.6 ± 3.0 | 25.4 ± 3.3 | 23.7 ± 2.5 | .02 |
| >16–17 years (71) | 25.3 ± 3.1 | 25.6 ± 3.0 | 24.4 ± 3.3 | .13 |
| >17–18 years (57) | 24.7 ± 2.9 | 25.3 ± 2.6 | 23.2 ± 3.2 | .01 |
| >18–19 years (57) | 24.8 ± 2.6 | 25.7 ± 2.2 | 23.4 ± 2.7 | <.01 |