Duration (yrs) | Mean | S.D | āpā value |
<3 yrs (n = 10) | 1.5360 | 0.1670 | p = 0.0001* |
4 - 6 yrs (n = 21) | 1.2621 | 0.2846 | |
7 - 9 yrs (n = 10) | 1.044 | 0.1194 | |
>10 yrs (n = 9) | 1.015 | 0.1208 |