Table 1.
Descriptive Statistics Summarizing the Age and Sex Distributions, and Visual Performance, of the Study Cohort and Individual Subgroups at Both the Participant and Eye Levels
| Variable | HC | PwMS | |
|---|---|---|---|
| Participants | 38 | 56 | |
| Age, years mean ± SD | 50.4 ± 12.7 | 47.1 ± 10.6 | |
| Age, years range | 27–81 | 24–75 | |
| Female (%) | 20 (52.6) | 30 (53.6) | |
| HC | MS −ON | MS +ON | |
| Eyes | 73 | 67 | 35 |
| Age, years mean ± SD | 49.67 ± 12.2 | 48.8 ± 9.7 | 44.7 ± 12.0 |
| Female (%) | 38 (52.1) | 34 (50.7) | 21 (60.0) |
| HCVA mean ± SD | −0.13 ± 0.09 | −0.04 ± 0.09 | 0.08 ± 0.23 |
| HCVA median [IQR] | 0.140 [0.14] | −0.06 [0.08] | 0.0100 [0.32] |
| HCVA missing (%) | 0 (0) | 0 (0) | 1 (2.9) |
| LCVA mean ± SD | 0.34 ± 0.12 | 0.50 ± 0.19 | 0.66 ± 0.26 |
| LCVA median [IQR] | 0.32 [0.14] | 0.48 [0.23] | 0.64 [0.32] |
| LCVA missing (%) | 0 (0) | 0 (0) | 6 (17.1) |
| HCVA-LCVA mean ± SD | 0.47 ± 0.09 | 0.53 ± 0.17 | 0.62 ± 0.15 |
| HCVA-LCVA median [IQR] | 0.460 [0.12] | 0.50 [0.17] | 0.620 [0.18] |
| HCVA-LCVA missing (%) | 0 (0) | 0 (0) | 6 (17.1) |
IQR, interquartile range.
HCVA − LCVA is the arithmetic difference between HCVA and LCVA. All HCVA, LCVA, and HCVA − LCVA values are provided as the logMAR. Missing HCVA and LCVA values represent the number of eyes where it was not possible to quantify visual performance; in all cases this occurred in eyes with previous ON.