Table 2.
Characteristics of participants included in this study (subgroup analysis by hypertension).
| With hypertension | Without hypertension | p | |
|---|---|---|---|
| N | 20,803 | 18,674 | |
| Agea | 54.08 ± 0.23 | 39.87 ± 0.19 | < 0.001 |
| Male (%)b | 51.6 (50.7–52.0) | 44.7 (43.8–45.5) | < 0.001 |
| Ethnicity (%)b | |||
| Mexican Americans | 6.1 (5.1–7.0) | 9.9 (8.6–11.0) | < 0.001 |
| Other Hispanics | 4.4 (3.6–5.0) | 6.6 (5.6–8.0) | |
| Non-Hispanic White | 71.1 (68.7–73.0) | 67.2 (64.8–69.0) | |
| Non-Hispanic Black | 12.5 (11.1–14.0) | 9.3 (8.3–10.0) | |
| Other ethnicities | 6.0 (5.3–7.0) | 7.0 (6.3–8.0) | |
| Blood lead level (µg/dL)c | 1.44 [1.41–1.47] | 1.12 [1.10–1.14] | < 0.001 |
| Waist circumference (cm)a | 102.94 ± 0.20 | 93.41 ± 0.21 | < 0.001 |
| Ever cigarette smoking (%)b | 49.4 (48.1–51.0) | 43.8 (42.5–45.0) | < 0.001 |
| Systolic blood pressure (mmHg)a | 129.7 ± 0.29 | 106.1 ± 0.36 | < 0.001 |
| Diastolic blood pressure (mmHg)a | 73.1 ± 0.25 | 63.4 ± 0.19 | < 0.001 |
aFigures are expressed as mean ± standard error (for mean age, waist circumference, systolic blood pressure and diastolic blood pressure).
bFigures are expressed as percent (95% confidence intervals) (for gender, ethnicity and ever cigarette smoking).
cFigures are expressed as mean blood lead levels (95% confidence intervals).