Table 4 Analytical statistics (Kruskal–Wallis test, Wilcoxon signed rank test, ANOVA-type statistics and rank statistics, interaction contrasts and pairwise Mann–Whitney-Test) for macular thickness preoperative and at the time of follow up (6 months, postop)
From: Surgical management of submacular hemorrhage due to n-AMD: a comparison of three surgical methods
Groups | Time | DF | V/Stat. | Chi2 | p | Rank means | N | RTE | Type |
|---|---|---|---|---|---|---|---|---|---|
A | – | – | 526 | – | 0.000 | – | – | – | Wilcox |
B | – | – | 894 | – | 0.000 | – | – | – | Wilcox |
C | – | – | 50 | – | 0.147 | – | – | – | Wilcox |
– | Preop | 2 | – | 9.46 | 0.009 | – | – | – | Kruskal |
– | Postop | 2 | – | 3.28 | 0.194 | – | – | – | Kruskal |
Groups | – | 1.53 | 1.30 | – | 0.267 | – | – | – | ANOVA |
– | Time | 1.00 | 103.68 | – | 0.000 | – | – | – | ANOVA |
Groups | Time | 1.40 | 4.72 | – | 0.018 | – | – | – | ANOVA |
A | – | – | – | – | – | 79 | 64 | 0.46 | Rank |
B | – | – | – | – | – | 91 | 84 | 0.53 | Rank |
C | – | – | – | – | – | 84 | 22 | 0.49 | Rank |
– | Preop | – | – | – | – | 118 | 85 | 0.69 | Rank |
– | Postop | – | – | – | – | 52 | 85 | 0.30 | Rank |
A | Preop | – | – | – | – | 117 | 32 | 0.68 | Rank |
A | Postop | – | – | – | – | 41 | 32 | 0.24 | Rank |
B | Preop | – | – | – | – | 133 | 42 | 0.78 | Rank |
B | Postop | – | – | – | – | 49 | 42 | 0.29 | Rank |
C | Preop | – | – | – | – | 103 | 11 | 0.61 | Rank |
C | Postop | – | – | – | – | 41 | 11 | 0.38 | Rank |
A:B | – | – | – | – | 0.079 | – | – | – | Pairwise |
A:C | – | – | – | – | 0.587 | – | – | – | Pairwise |
B:C | – | – | – | – | 0.028 | – | – | – | Pairwise |
B:A | Pre:Post | – | – | – | 1.000 | – | – | – | Interact |
C:B | Pre:Post | – | – | – | 0.51 | – | – | – | Interact |
C:A | Pre:Post | – | – | – | 0.081 | – | – | – | Interact |