Groups | Time intervals | Visual scores mean ± SD |
Significance (P value)
| Comparison between various time intervals of observation (intra-group) | |
---|---|---|---|---|---|

Comparison |
P value
| ||||

Group I |
T
_{0}
| 15.71 ± 7.94 | 0.078 NS |
T
_{0}–T
_{1}
| 1.000 NS |

T
_{1}
| 12.14 ± 8.41 |
T
_{0}–T
_{2}
| 0.582 NS | ||

T
_{2}
| 10.57 ± 8.18 |
T
_{0}–T
_{3}
| 0.067 NS | ||

T
_{3}
| 07.71 ± 7.66 |
T
_{1}–T
_{2}
| 1.000 NS | ||

T
_{1}–T
_{3}
| 0.910 NS | ||||

T
_{2}–T
_{3}
| 1.000 NS | ||||

Group II |
T
_{0}
| 12.31 ± 6.45 | 0.012* |
T
_{0}–T
_{1}
| 0.676 NS |

T
_{1}
| 08.85 ± 6.22 |
T
_{0}–T
_{2}
| 0.169 NS | ||

T
_{2}
| 07.46 ± 5.47 |
T
_{0}–T
_{3}
| 0.008** | ||

T
_{3}
| 05.00 ± 3.03 |
T
_{1}–T
_{2}
| 1.000 NS | ||

T
_{1}–T
_{3}
| 0.473 NS | ||||

T
_{2}–T
_{3}
| 1.000 NS | ||||

Group III |
T
_{0}
| 15.50 ± 12.45 | 0.008** |
T
_{0}–T
_{1}
| 1.000 NS |

T
_{1}
| 12.28 ± 6.83 |
T
_{0}–T
_{2}
| 0.035* | ||

T
_{2}
| 06.85 ± 4.91 |
T
_{0}–T
_{3}
| 0.018* | ||

T
_{3}
| 06.14 ± 5.24 |
T
_{1}–T
_{2}
| 0.462 NS | ||

T
_{1}–T
_{3}
| 0.277 NS | ||||

T
_{2}–T
_{3}
| 1.000 NS |