Table 1 Baseline characteristics in unmatched subjects of 2005–2008 NHANES
Variables | Non-DR | DR | P |
|---|---|---|---|
n = 986 | n = 331 | ||
Age (years) | 61.90 ± 11.15 | 63.53 ± 10.72 | 0.020 |
PIR | 2.57 ± 1.59 | 2.31 ± 1.44 | 0.010 |
BMI (kg/m2) | 32.07 ± 7.08 | 31.45 ± 6.83 | 0.165 |
Sex | 0.014 | ||
Male | 506 (51.32%) | 144 (43.50%) | |
Female | 480 (48.68%) | 187 (56.50%) | |
Race/ethnicity | < 0.001 | ||
Non-Hispanic White | 472 (47.87%) | 124 (37.46%) | |
Non-Hispanic Black | 236 (23.94%) | 117 (35.35%) | |
Hispanic | 244 (24.75%) | 83 (25.08%) | |
Other Races | 34 (3.45%) | 7 (2.11%) | |
Education | 0.031 | ||
< College | 599 (60.75%) | 233 (67.37%) | |
> College | 287 (39.25%) | 108 (32.63%) | |
Smoke | 0.075 | ||
No | 433 (43.91%) | 164 (49.55%) | |
Yes | 553 (56.09%) | 167 (50.45%) | |
CVD | < 0.001 | ||
No | 815 (82.66%) | 242 (73.11%) | |
Yes | 171 (17.34%) | 89 (26.89%) | |
Refractive errors | 0.002 | ||
Emmetropia (-1.0D < SE < 1.0D) | 407 (41.28%) | 134 (40.48%) | |
Mild myopia (-5.0D < SE < -1.0D) | 383 (38.84%) | 157 (47.43%) | |
High myopia (SE < -5.0D) | 62 (6.29%) | 8 (2.42%) | |
Hyperopia (1.0D < SE) | 134 (13.59%) | 32 (9.67%) |