Table 1.
Demographic and visual data comparisons between groups. p < 0.05.
| Characteristic | Eye | RP (n = 27) | Control (n = 38) | Test value, p-value |
|---|---|---|---|---|
| Age (years) | 41.00 (21.00) | 39.00 (18.00) | U = 462.50, p = 0.501 | |
| Gender (female/male) | 12/15 | 18/20 | χ2 (1) = 0.05, p = 0.508 | |
| Handedness (right/left)* | 24/1 | 36/2 | χ2 (2) = 2.96, p = 0.228 | |
| Visual acuity (logMAR) | Right | −0.40 (0.26) | 0.00 (0.12) | U = 1026.00, p = 4.018 × 10−12 |
| Left | −0.40 (0.30) | 0.00 (0.11) | U = 1004.00, p = 1.838 × 10−11 | |
| Retinal thickness (µm)† | Right | 234.23 ± 32.12 | 287.42 ± 11.93 | t (29.76) = −8.07, p = 5.535 × 10−9 |
| Left | 233.23 ± 30.75 | 287.08 ± 12.26 | t (30.49) = −8.48, p = 1.615 × 10−9 | |
| RNFL thickness (µm)† | Right | 95.38 ± 25.17 | 95.34 ± 10.35 | t (30.84) = 0.01, p = 0.994 |
| Left | 93.65 ± 19.86 | 94.55 ± 9.37 | t (32.68) = −0.21, p = 0.831 | |
| Visual field mean deficit (dB)‡ | Right | 20.00 (7.40) | 0.30 (0.30) | U = 0.50, p = 7.274 × 10−11 |
| Left | 19.90 (6.10) | 0.30 (0.22) | U = 4.00, p = 1.746 × 10−10 |
RP = Retinitis Pigmentosa; n = number of participants; RNFL = retinal nerve fiber layer; *Two patients with missing data; †One patient with missing data; ‡Four patients could not perform the exam with both eyes and one with the left eye. Values are mean ± standard deviation or median (interquartile range). Significance level at p < 0.05.