Table 1.
Comparison of baseline characteristics between patients with and without gradable photos
| Variable | With gradable photo n=1820 (94%) |
Without gradable photo n=116 (6%) |
p-value* |
|---|---|---|---|
| n (%) | |||
| Female | 825 (45.3%) | 56 (48.3%) | 0.56 |
| Non-smoker | 839 (46.1%) | 42 (36.2%) | |
| Former smoker | 765 (42.0%) | 58 (50.0%) | 0.11 |
| Current smoker | 216 (11.9%) | 16 (13.8%) | |
| Diabetes mellitus | 845 (46.4%) | 80 (69.0%) | <0.001 |
| Hypertension | 1603 (88.1%) | 111 (95.7%) | <0.01 |
| Any Cardio-Vascular Disease | 625 (34.3%) | 66 (56.9%) | <0.001 |
| Mean (SD) | |||
| Age (years) | 60.0 (10.9) | 64.3 (9.2) | <0.001 |
| Systolic Blood Pressure (mmHg) | 126.5 (21.5) | 134.4 (23.6) | <0.001 |
| High-density Lipoprotein (mg/dL) | 48.7 (15.8) | 48.6 (14.9) | 0.97 |
| Low-density Lipoprotein (mg/dL) | 99.1 (33.5) | 91.9 (31.6) | 0.03 |
| Triglycerides (mg/dL) | 147.9 (102.3) | 144.1 (114.2) | 0.70 |
| Hemoglobin A1C (%) | 6.48 (1.43) | 7.11 (1.49) | <0.001 |
| eGFR (mL/min/1.73m2) | 41.7 (16.0) | 36.0 (15.1) | <0.001 |
| Median (25% - 75%) | |||
| Urine Protein (g/24H) | 0.16 (0.06 - 0.80) | 0.25 (0.09 - 1.42) | 0.02 |
SD = Standard deviation. eGFR= Estimated glomerular filtration rate
*
P-value for comparisons calculated by Fisher exact test for categorical variables and two sample t-test for continuous variables.