Table 3 Alteration of BH of 4 groups during 2-year observation
Type 1 | Type 2 | Type 3 | Type 4 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Median | Min | Max | Median | Min | Max | Median | Min | Max | Median | Min | Max | |
T1 (mm) | 2.8 | 1.2 | 3.8 | 2.3 | 0.9 | 4.3 | 1.0 | − 0.1 | 2.5 | 1.2 | 0 | 2.6 |
T2 (mm) | 2.8 | 1.1 | 3.7 | 2.2 | 0.7 | 4.0 | 0.9 | − 0.1 | 2.4 | 0.8 | − 0.6 | 2.2 |
T3 (mm) | 2.7 | 1.1 | 3.3 | 2.1 | 0.3 | 4.0 | 0.9 | − 0.1 | 2.4 | 0.5 | − 1.1 | 1.7 |