Table 1.
Survey-weighted sociodemographic and clinical covariates. Interquartile range denotes the interval covering the 25th to 75th percentile. Weighted frequencies and summary statistics were calculated using the R “survey” package which accounted for NHANES complex survey design.
| Covariate | Summary measure |
|---|---|
| Weighted frequency (%) | |
| Sex | |
| Male | 49.9 |
| Female | 50.1 |
| Race/Ethnicity | |
| Mexican American | 10.4 |
| Other Hispanic | 7.4 |
| Non-Hispanic White | 59.9 |
| Non-Hispanic Black | 12.3 |
| Non-Hispanic Asian | 6.3 |
| Other Race/Multi-Racial | 3.7 |
| Median (interquartile range) | |
| Age (years) | 40 (29, 50) |
| Family income-to-poverty ratio | 3.0 (1.5–5.0) |
| White blood cell count (1000 cells/uL) | 7.1 (5.9–8.7) |
| C-reactive protein (mg/L) | 1.7 (0.6–4.3) |
| Body mass index (kg/m2) | 28.2 (24.2–33.0) |
| Serum triglycerides (mg/dL) | 118 (77–187) |
| Serum albumin (g/dL) | 4.4 (4.2–4.6) |
| Serum creatinine (mg/dL) | 0.82 (0.69–0.95) |
| Systolic blood pressure (mmHg) | 118 (110–127) |
| Diastolic blood pressure (mmHg) | 72 (65–78) |
| Pulse rate (beats per min) | 72 (66–80) |
| High density lipoprotein (mg/dL) | 51 (41–64) |
| Total cholesterol (mg/dL) | 188 (164–216) |
| Glycohemoglobin (%) | 5.4 (5.1–5.7) |
| Urinary creatinine (mg/dL) | 113 (65–184) |
| Allostatic load sum-score | 3 (1, 4) |