TABLE 3.
Clinical characteristics of the study population in insulin resistance and non-insulin resistance group.
| Characteristics | Insulin resistance group | Non-insulin resistance group | P-value |
| Number of subjects | 1287 | 3861 | |
| Age (year)b | 43 (26) | 43 (27) | 0.855 |
| Race (%)a | < 0.01 | ||
| Mexican American | 231 (17.9) | 451 (11.7) | |
| Other Hispanic | 152 (11.8) | 415 (10.7) | |
| Non-Hispanic White | 466 (36.2) | 1534 (39.7) | |
| Non-Hispanic Black | 279 (21.7) | 741 (19.2) | |
| Other race | 159 (12.4) | 720 (18.6) | |
| Education level (%)a | < 0.01 | ||
| Less than 9th grade | 119 (9.2) | 305 (7.9) | |
| 9–11th grade | 188 (14.6) | 480 (12.4) | |
| High school graduate | 275 (21.4) | 810 (21.0) | |
| College or AA degree | 418 (32.5) | 1127 (29.2) | |
| College graduate or above | 287 (22.3) | 1139 (29.5) | |
| Waist circumference (cm)b | 108 (19.7) | 91.7 (18.1) | < 0.01 |
| Body mass index (kg/m2)b | 32.5 (8.8) | 25.9 (6.5) | < 0.01 |
| Cholesterol (mmol/L)b | 4.91 (1.35) | 4.86 (1.31) | 0.029 |
| Triglyceride (mmol/L)b | 1.502 (1.14) | 0.982 (0.711) | < 0.01 |
| Creatinine (μmol/L)b | 73.37 (23.87) | 73.37 (25.63) | 0.578 |
| eGFR (mL/min per 1⋅73m2) b | 92.42 (31.37) | 92.50 (28.65) | 0.793 |
| Poverty income ratio <1 (%)a | 292 (25.1) | 804 (22.5) | 0.072 |
| Serum uric acid (μmol/L)b | 345.0 (113.0) | 303.3 (101.1) | < 0.01 |
| Glycohemoglobin (%)b | 5.6 (0.5) | 5.4 (0.5) | < 0.01 |
| Hypertension (%)a | 491 (38.2) | 969 (25.1) | < 0.01 |
| Had at least 12 alcohol drinks/year (%)a | 810 (70.6) | 2606 (74.8) | < 0.01 |
| Smoked at least 100 cigarettes in life (%)a | 537 (41.7) | 1613 (41.8) | 0.974 |
NHANES 2011–2016 (n = 5,148).
Data are number of subjects (percentage) or medians (interquartile ranges).
aChi-square test was used to compare the percentage of participants with and without insulin resistance.
bMann–Whitney U-test was used to compare the median values between participants with and without insulin resistance.