Table 1.
Demographic characteristics of the analyzable (n = 819) and non-analyzable (n = 73) ITS subsets
| Category | Subgroup | Analyzable % (n/N) | Not analyzable % (n/N) |
|---|---|---|---|
| Age (years) | <65 | 69.1% (566/819) | 52.1% (38/73) |
| ≥65 | 30.9% (253/819) | 47.9% (35/73) | |
| Ethnicity | Hispanic or Latino | 16.4% (134/819) | 13.7% (10/73) |
| Not Hispanic or Latino | 83.0% (680/819) | 80.8% (59/73) | |
| Unknown | 0.6% (5/819) | 5.5% (4/73) | |
| HbA1c7 | <7 | 11.6% (95/819) | 23.3% (17/73) |
| ≥7 | 86.7% (710/819) | 76.7% (56/73) | |
| Unknown* | 1.7% (14/819) | 0% (0/73) | |
| HbA1c9 | <9 | 46.4% (380/819) | 54.8% (40/73) |
| ≥9 | 51.9% (425/819) | 45.2% (33/73) | |
| Unknown* | 1.7% (14/819) | 0% (0/73) | |
| Lens Status | Phakic with opacities or Cannot Grade | 10.4% (85/819) | 47.9% (35/73) |
| Pseudophakic or no opacities | 89.6% (734/819) | 52.1% (38/73) | |
| Race | American Indian or Alaskan Native | 0.4% (3/819) | 0.0% (0/73) |
| Asian | 1.5% (12/819) | 4.1% (3/73) | |
| Black | 28.2% (231/819) | 46.6% (34/73) | |
| Mixed Race | 1.2% (10/819) | 1.4% (1/73) | |
| Other-Mexican | 0.1% (1/819) | 0.0% (0/73) | |
| Other-Puerto rican | 0.1% (1/819) | 0.0% (0/73) | |
| Refuse to provide | 1.1% (9/819) | 0.0% (0/73) | |
| Unknown | 3.5% (29/819) | 1.4% (1/73) | |
| White | 63.9% (523/819) | 46.6% (34/73) |
* These subjects had diabetes diagnosed by means other than HbA1C – see Methods