Table 1.
Age category (years) | Mean (±2 SD) | Median (10–90 pc) |
---|---|---|
<30 | 6.2 (4.7–7.6) | 6.1 (5.3–7.1) |
30–39 | 6.5 (3.8–9.2) | 6.4 (5.2–8.0) |
40–49 | 7.2 (4.6–9.8) | 6.9 (5.9–8.6) |
50–59 | 8.3 (4.5–12.1) | 8.1 (6.3–10.0) |
60–69 | 10.3 (5.5–15.0) | 9.7 (7.9–13.1) |
>70 | 10.9 (5.5–16.3) | 10.6 (8.0–14.6) |
SD, standard deviation; pc, percentile.
From Mattace-Raso et al. (76), with permission.