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Table 3 Analytical statistics (Kruskal–Wallis test, Wilcoxon signed rank test, ANOVA-type statistics and rank statistics) for Visus 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 389.5 0.013 Wilcox
B 527.0 0.057 Wilcox
C 129.5 0.013 Wilcox
Preop 2 2.41 0.300 Kruskal
Postop 2 4.13 0.127 Kruskal
Groups 1.81 2.20 0.116 ANOVA
Time 1.00 21.54 0.000 ANOVA
Groups Time 2.00 0.84 0.432 ANOVA
A 92 68 0.44 Rank
B 107 94 0.51 Rank
C 118 46 0.56 Rank
Preop 120 104 0.58 Rank
Postop 91 104 0.44 Rank
A Preop 111 34 0.53 Rank
A Postop 73 34 0.35 Rank
B Preop 116 47 0.55 Rank
B Postop 98 47 0.47 Rank
C Preop 133 23 0.64 Rank
C Postop 102 23 0.49 Rank