Table 1.
Baseline characteristics according to activity of proliferative diabetic retinopathy at follow-up month 3
| Baseline characteristics | Global (median±IQR) | Focal (median±IQR) | ||||
| PDR progression | PDR non-progression | p value | PDR progression | PDR non-progression | p value | |
| Eyes, n | 12 | 30 | 7 | 17 | ||
| Sex (men/women), n | 6/6 | 22/8 | 0.15 | 3/4 | 14/3 | 0.05 |
| Age, years | 51.3±18.0 | 53.8±26.0 | 0.47 | 51.1±31.7 | 42.3±21.8 | 0.97 |
| Diabetes duration, years | 15.5±22.5 | 20±12.0 | 0.28 | 12±8.0 | 20±12.0 | 0.07 |
| HbA1c, % | 8.2±2.4 | 7.9±1.5 | 0.96 | 8.4±2.8 | 7.8±1.2 | 0.43 |
| HbA1c, mmol/mol | 66.5±26.5 | 63±16.0 | 0.96 | 68±31.0 | 62±13.0 | 0.43 |
| Systolic blood pressure, mm Hg | 159.5±29.5 | 153±39.0 | 0.99 | 146±37.0 | 140±29.0 | 0.97 |
| Diastolic blood pressure, mm Hg | 77.5±28.0 | 83.5±12.0 | 0.44 | 83±28.0 | 82±14.0 | 0.82 |
| Amount of laser energy, Joule | 13.8±5.0 | 13.2±4.6 | 0.56 | 13.6±6.7 | 11.5±4.1 | 0.68 |
| Oximetry image quality, 0–10 | 8.4±1.2 | 8.0±1.0 | 0.51 | 8.3±1.2 | 8.1±0.9 | 0.85 |
| Arteriolar oxygen saturation, % | 96.1±7.8 | 95.3±7.8 | 0.43 | 93.6±8.1 | 97.6±9.0 | 0.32 |
| Venular oxygen saturation, % | 65.2±16.3 | 67.2±13.4 | 0.96 | 62.0±18.6 | 68.2±14.2 | 0.59 |
| Arteriovenular oxygen difference saturation, % | 31.9±14.1 | 30.2±11.1 | 0.58 | 28.5±24.0 | 34.6±20.6 | 0.36 |
Baseline characteristics in global and focal measurements according to activity of proliferative diabetic retinopathy (PDR) 3 months after panretinal laser photocoagulation. Continuous data are presented as median with IQR. Differences between groups were compared with the Mann-Whitney U test for continuous data and χ2 test for categorical. Oximetry image quality ranged from 0=poor to 10=excellent.
IQR, interquartile range; PDR, proliferative diabetic retinopathy.