Table 2.
Retinal Vessel Width Gradient
| Statistic | Parkinson (n = 53 Eyes) | Controls (n = 51 Eyes) | P a |
|---|---|---|---|
| Superotemporal arteriolar | |||
| Mean (SD) | −0.00336 (0.00119) | −0.00339 (0.00089) | 0.956 |
| Minimum, median, maximum | −0.00780, −0.00309, −0.00134 | −0.00520, −0.00323, −0.00157 | |
| Superotemporal venular | |||
| Mean (SD) | −0.00416 (0.00092) | −0.00425 (0.00099) | 0.712 |
| Minimum, median, maximum | −0.00658, −0.00408, −0.00196 | −0.00655, −0.00419, −0.00256 | |
| Inferotemporal arteriolar | |||
| Mean (SD) | −0.00283 (0.00093) | −0.00298 (0.00079) | 0.902 |
| Minimum, median, maximum | −0.00554, −0.00280, −0.00023 | −0.00467, −0.00292, −0.00107 | |
| Inferotemporal venular | |||
| Mean (SD) | −0.00404 (0.00125) | −0.00381 (0.00109) | 0.878 |
| Minimum, median, maximum | −0.00696, −0.00387, −0.00152 | −0.00679, −0.00369, −0.00099 | |
| Inferonasal arteriolar | |||
| Mean (SD) | −0.00316 (0.00153) | −0.00356 (0.00158) | 0.531 |
| Minimum, median, maximum | −0.00703, −0.00310, −0.00010 | −0.00929, −0.00334, −0.00095 | |
| Inferonasal venular | |||
| Mean (SD) | −0.00406 (0.00137) | −0.00410 (0.00146) | 0.803 |
| Minimum, median, maximum | −0.00769, −0.00395, −0.00155 | −0.00770, −0.00396, −0.00126 | |
| Superonasal arteriolar | |||
| Mean (SD) | −0.00257 (0.00103) | −0.00244 (0.00115) | 0.105 |
| Minimum, median, maximum | −0.00659, −0.00242, −0.00060 | −0.00500, −0.00224, −0.00023 | |
| Superonasal venular | |||
| Mean (SD) | −0.00329 (0.00142) | −0.00304 (0.00114) | 0.102 |
| Minimum, median, maximum | −0.00707, −0.00315, −0.00022 | −0.00593, −0.00305, −0.00082 |
a
P values are based on GEEs for testing differences between group means equal to zero, adjusted for age and sex.