TABLE 2.
Demographic and clinical characteristics of disabled and non-disabled subjects as classified according to the latent class model applied to National Eye Institute Visual Function (NEI VFQ-25) questionnaire data from glaucoma patients.
| Characteristic | Non-disabled (n=215) | Disabled (n=48) | P value |
|---|---|---|---|
| Age, years | 70.3 ± 11.3 | 74.9 ± 9.8 | 0.015a |
| Gender, female (%) | 105 (48.8) | 30 (62.5) | 0.087b |
| Race, AA (%) | 68 (31.6) | 13 (27.1) | 0.537b |
| VA of better eye, logMAR | −0.02 ± 0.12 | +0.05 ± 0.12 | <0.001a |
| SAP 24–2 integrated binocular MS, dB* | 28.27 [29.08 (26.88 – 30.60] | 23.61 [26.43 (20.45 – 28.14)] | <0.001a |
| SAP 24–2 MD of better eye, dB* | −2.51 [−1.59 (−3.48 – −0.05)] | −5.97 [−3.89 (−8.31 – −1.99)] | <0.001a |
| SAP 24–2 MD of worse eye, dB* | −6.05 [−4.16 (−8.45 – −1.82)] | −13.36 [−11.52 (−21.44 – −5.04)] | <0.001a |
| Health insurance, % yes | 94.3 | 93.5 | 0.827b |
| Marital status, % married | 56.7 | 40.0 | 0.042b |
| Education, % with at least high school degree | 97.7 | 97.8 | 0.950b |
| Income, % lower than $25,000 | 12.8 | 10.8 | 0.733b |
Values are presented as mean ± standard deviation, unless otherwise noted. AA: African American Descend; VA: Visual acuity; SAP: Standard Automated Perimetry; MS: mean sensitivity; dB: decibel; MD: mean deviation; NEI VFQ-25: 25-item National Eye Institute Visual Function Questionnaire.
*
Values given as mean [median (interquartile range)]
a
Wilcoxon rank-sum test;
b
Fisher’s exact test.