Sensitivity and specificity of GDx variables in all glaucomatous eyes and normal subjects, average of each GDx variable in each group, and the difference between the chronic open angle glaucoma group and normal subjects
| Sensitivity | Specificity | Average value in patients with OAG | Average value in normal subjects | p* | p** | |
|---|---|---|---|---|---|---|
| S = symmetry, SR = superior ratio, IR = inferior ratio, S/N = superior/nasal, MM = max modulation, EM = ellipse modulation, AT = average thickness, EA = ellipse average, SA = superior average, IA = inferior average, SI = superior integral, OAG = normal tension glaucoma and primary open angle glaucoma. | ||||||
| Comparisons between groups were done using multivariate logistic regression analysis (p value (p*) calculated by using the OAG group and normal subjects as dependent variables, and age, refractive error, individual variable GDx p <5% or not as independent variables (11 ways), and p value (p**) calculated by using the OAG group and normal subjects as dependent variables, and age, refractive error, actual value of a GDx variable as independent variables (11 ways)). Data are reported as mean (SD). | ||||||
| S | 29.6% | 90.0% | 1.08 (0.22) | 1.07 (0.16) | 0.018 | 0.729 |
| SR | 29.6% | 92.8% | 1.69 (0.38) | 2.33 (0.68) | 0.003 | <0.001 |
| IR | 35.7% | 92.8% | 1.61 (0.38) | 2.17 (0.54) | <0.001 | <0.001 |
| S/N | 56.5% | 87.0% | 1.49 (0.26) | 1.87 (0.32) | <0.001 | <0.001 |
| MM | 45.2% | 91.3% | 0.92 (0.76) | 1.45 (0.60) | <0.001 | 0.010 |
| EM | 44.3% | 91.3% | 1.39 (0.61) | 2.14 (0.74) | 0.002 | <0.001 |
| AT | 0.9% | 98.6% | 68.6 (13.0) | 72.0 (14.4) | 0.720 | 0.711 |
| EA | 3.5% | 97.1% | 69.2 (13.7) | 74.4 (14.4) | 0.946 | 0.363 |
| SA | 9.6% | 95.7% | 76.3 (17.5) | 84.3 (19.0) | 0.246 | 0.057 |
| IA | 11.3% | 98.6% | 73.8 (16.3) | 80.9 (18.4) | 0.060 | 0.047 |
| SI | 3.5% | 100% | 0.24 (0.09) | 0.25 (0.06) | 0.768 | 0.883 |