Table 1.
Selected Characteristics of All Adult Patients Who Had BP Measured in 3 NHANES Time Periods
| NHANES | 1999–2002 | 2003–2006 | 2007–2010 |
|---|---|---|---|
| No. | 10,006 | 9930 | 11,723 |
| Age, y | |||
| Mean | 44.1 (43.5–44.8) | 45.2 (44.2–46.2) | 46.0 (45.4–46.7) a |
| Sex | |||
| Male, % | 48.4 (47.4–49.3) | 48.6 (47.6–49.5) | 48.5 (47.7–49.3) |
| Female, % | 51.6 (50.7–52.6) | 51.4 (50.5–52.4) | 51.5 (50.7–52.3) |
| Race | |||
| White, % | 71.0 (67.2–74.6) | 72.2 (67.6–76.4) | 68.8 (63.5–73.6) |
| Black, % | 10.5 (8.4–13.2) | 11.1 (8.7–14.1) | 11.3 (9.3, 13.7) |
| Hispanic, % | 13.8 (10.2–18.4) | 11.4 (9.0–14.5) | 13.7 (10.4–17.8) |
| Other race, % | 4.6 (3.5–6.1) | 5.2 (4.3–6.2) | 6.2 (5.0–7.7) |
| SBP, mm Hg | |||
| All patients | 122.1 (121.3–123.0) | 121.9 (121.2–122.6) a | 120.4 (119.8–121.0)‡ |
| DBP, mm Hg | |||
| All patients | 72.3 (71.7–72.9) a | 70.5 (70.0–71.0) | 69.9 (69.1–70.7) a |
| ≥160/≥100, % | 5.3 (4.6–6.1) | 4.7 (4.2–5.3) a | 3.2 (2.9–3.5) a |
| 140–159/90–99, % | 12.7 (11.8–13.6) | 12.0 (10.9–13.1) | 11.2 (10.4–12.0) b |
| 120–139/80–89, % | 36.3 (35.0–37.6) | 36.1 (34.8–37.5) | 35.0 (33.5–36.5) |
| <120/<80, % | 45.7 (43.8–47.7) | 47.2 (45.4–49.0)† | 50.7 (48.9–52.4)‡ |
| SBP, mm Hg | |||
| Nonhypertensive | 114.8 (114.2–115.5) | 115.1 (114.6–115.5) | 114.5 (113.9–115.0) |
| DBP, mm Hg | |||
| Nonhypertensive | 70.4 (69.9–70.9) a | 68.6 (68.2–69.0) | 68.6 (67.9–69.4) a |
| 120–139/80–89, % | 41.4 (39.5–43.4) | 39.5 (37.4–41.6) | 36.9 (35.0–38.9) a |
| <120/<80, % | 58.6 (56.6–60.5) | 60.5 (58.4–62.6 | 63.1 (61.1–65.0) a |
| BMI, kg/m2 | |||
| Mean | 27.8 (27.6–28.1) | 28.2 (27.9–28.5) | 28.5 (28.3–28.7) a |
| <25.0 | 36.5 (34.6–38.3) | 34.3 (32.5–36.1) | 32.3 (30.7–33.9) a |
| 25.0–29.9 | 34.0 (32.4–35.7) | 33.3 (31.9–34.8) | 33.4 (32.2–34.7) |
| ≥30, % | 29.5 (27.7–31.4) | 32.4 (30.4–34.4) | 34.3 (32.9–35.8) a |
| Diabetes, % | 6.2 (5.5–6.9) b | 7.3 (6.6–8.1) b | 8.9 (8.1–9.7) a |
| CKD, % | 5.6 (5.1–6.1) | 6.0 (5.3–6.8) | 6.1 (5.5–6.8) |
Abbreviations: BMI, body mass index; CKD, chronic kidney disease (estimated GFR <60 mL/1.7 m2/min); DBP, diastolic blood pressure; NHANES, National Health and Nutrition Examination Surveys; SBP, systolic blood pressure. Symbols in column (a) 1999–2002 indicate P value vs 2003–2006, (b) 2003–2006 vs 2007–2010, and (c) 2007–2010 vs 1999–2002. a P<.001. b P<.01.