Topographical distribution of the tumour centroids of 113 circumscribed choroidal haemangiomas in various fundus hemispheres and the distances from the posterior tumour margin to the foveola and optic disc margin, according to binary patient and tumour characteristics
Binary variables | Eyes | Hemisphere (n) | Distance (mean±SD, mm) | ||||||||
n | T | N | P* | U | L | P value* | Foveola | P value† | Optic disc | P value† | |
Female | 41 | 31 | 10 | 0.15 | 22 | 19 | 0.32 | 1.6±2.8 | 0.33 | 2.8±2.6 | 0.33 |
Male | 72 | 44 | 28 | 46 | 26 | 1.7±2.1 | 2.2±2.1 | ||||
Age <58 years | 56 | 33 | 23 | 0.11 | 31 | 25 | 0.34 | 1.6±2.4 | 0.92 | 2.1±2.5 | 0.07 |
Age≥58 years | 57 | 42 | 15 | 37 | 20 | 1.7±2.4 | 2.7±2.0 | ||||
Right eye | 62 | 42 | 20 | 0.84 | 36 | 26 | 0.70 | 1.8±2.6 | 0.98 | 2.7±2.5 | 0.14 |
Left eye | 51 | 33 | 18 | 32 | 19 | 1.6±2.0 | 2.0±2.0 | ||||
Basal diameter/height ratio <3 | 50 | 32 | 18 | 0.69 | 27 | 23 | 0.25 | 1.7±1.7 | 0.27 | 2.4±2.4 | 0.78 |
Basal diameter/height ratio ≥3 | 63 | 43 | 20 | 41 | 22 | 1.7±2.8 | 2.4±2.1 | ||||
Presence of subretinal fluid | 76 | 44 | 32 | 0.006‡ | 47 | 29 | 0.68 | 1.8±2.0 | 0.01 | 2.0±2.2 | 0.004‡ |
Absence of subretinal fluid | 37 | 31 | 6 | 21 | 16 | 1.4±3.0 | 3.2±2.1 |
*P values calculated using the Fisher’s exact test.
†P values calculated using the Mann–Whitney U-test.
‡P values, which also remained statistically significant after Bonferroni correction for multiple comparisons.
L, lower; N, nasal; T, temporal; U, upper.