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The relation between laterality groups and both mean total pain score and mean pain score per stage.
| The mean pain score of group 1 | The mean pain score of group 2 | P | |
|---|---|---|---|
| Total | 2.92 | 3.17 | 0.194 |
| Stage 1 | 0.70 | 0.79 | 0.440 |
| Stage 2 | 1.29 | 1.24 | 0.084 |
| Stage 3 | 0.92 | 1.13 | 0.175 |
Test: chi-square.
Group 1: right eyes, group 2: left eyes.
