Table 1.
Baseline demographics of participants with retinitis pigmentosa and healthy controls
| Analyzed parameters | RP | Age–sex matched control | P-value |
|---|---|---|---|
| Number | 45 | 45 | |
| Sex (male/female) | 15/30 | 15/30 | 1 |
| Age (years) | 45.0±16.1 | 45.1±20.7 | 0.973 |
| CRAE (μm) | 94.9±13.5 | 138.1±14.7 | <0.0001 |
| CRVE (μm) | 155.5±20.0 | 215.0±20.4 | <0.0001 |
| AVR | 0.6±0.1 | 0.6±0.1 | 0.012 |
| Diabetes, no. (%) | 0 | 3 (6.7%) | NA |
| Hypertension, no. (%) | 7 (15.6%) | 3 (6.7%) | 0.314 |
| Hyperlipidemia | 2 (4.4%) | 4 (8.9%) | 0.673 |
| Heart disease | 2 (4.4%) | 4 (8.9%) | 0.673 |
| Cardiovascular disease | 1 (2.2%) | 1 (2.2%) | 1 |
| Past or current cigarette smoking, no. (%) | 12 (26.7%) | 9 (20.0%) | 0.618 |
Notes: Data are means ± standard deviations; unpaired t-test for continuous variables or chi-square test for categorical variables, as appropriate.
Abbreviations: AVR, arteriovenous ratio; CRAE, central retinal artery equivalent-6; CRVE, central retinal vein equivalent-6; NA, not applicable; no., number; RP, retinitis pigmentosa.