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The characteristics of LSA in different age groups.
| Age (years) | 20–30 | 30–40 | 40–50 | 50–60 | 60–70 |
|---|---|---|---|---|---|
| Number (n) | 13 | 40 | 32 | 38 | 14 |
| stem (n) | 6.23 ± 1.42 | 5.53 ± 1.39 | 4.38 ± 1.13 | 5.34 ± 1.36 | 4.79 ± 1.53 |
| branch (n) | 10.69 ± 2.36 | 10.50 ± 2.54 | 8.59 ± 2.59 | 8.97 ± 2.44 | 7.86 ± 2.71 |
| length (cm) | 3.72 ± 0.50 | 3.53 ± 0.44 | 3.38 ± 0.44 | 3.18 ± 0.49 | 3.05 ± 0.52 |
