Table 3.
Prevalence of Uncontrolled Blood Pressure Among Adults (≥18 Years) With Hypertension Who Have a Usual Source of Health Care, Are Aware of Their Hypertension, and Are Currently Treated, by Select Characteristics––NHANES 2007–2012
| Characteristics | Treated | Uncontrolled | χ 2 a/t Testb | |||||
|---|---|---|---|---|---|---|---|---|
| Sample. No. | % | (95% CI) | No | % | (95% CI) | No | P Value | |
| Total | 4413 | 93.0 | (91.8–94.1) | 50.9 | 31.1 | (29.3–32.9) | 15.8 | |
| Sex | .265a | |||||||
| Male | 2050 | 90.9 | (89.2–92.4) | 22.8 | 30.1 | (28.0–32.4) | 6.9 | |
| Female | 2363 | 94.8 | (93.5–95.8) | 28.2 | 31.8 | (29.5–34.3) | 9.0 | 1.00b |
| Age group, y | <.001a | |||||||
| 18–44 | 367 | 82.9 | (77.7–87.1) | 5.5 | 22.0 | (17.6–27.3) | 1.2 | [Reference] |
| 45–64 | 1783 | 92.7 | (90.8–94.3) | 23.6 | 27.3 | (24.9–29.8) | 6.4 | .545b |
| 65+ | 2263 | 96.3 | (95.1–97.2) | 21.9 | 37.4 | (34.9–40.1) | 8.2 | <.001b |
| Race/ethnicity | <.001a | |||||||
| Non‐Hispanic white | 2086 | 93.6 | (92.1–94.9) | 37.1 | 29.1 | (27.1–31.2) | 10.8 | [Reference] |
| Non‐Hispanic black | 1249 | 90.6 | (88.4–92.4) | 7.5 | 37.6 | (34.8–40.4) | 2.8 | <.001b |
| Hispanic | 841 | 93.6 | (90.4–95.8) | 4.0 | 36.4 | (33.0–39.9) | 1.5 | .008b |
| Insurance coverage type | <.001a | |||||||
| Medicare | 2383 | 96.1 | (94.8–97.1) | 23.2 | 36.4 | (33.8–39.1) | 8.5 | <.001b |
| Private | 1170 | 91.5 | (89.0–93.4) | 19.5 | 25.9 | (23.3–28.8) | 5.1 | [Reference] |
| Public | 470 | 92.5 | (88.7–95.1) | 4.7 | 24.0 | (19.4–29.3) | 1.1 | 1.000b |
| Uninsured | 384 | 83.8 | (79.2–87.6) | 3.5 | 33.9 | (27.5–41.0) | 1.2 | .460b |
| Times received health care in past year | .579a | |||||||
| 0 | 58 | 59.4 | (47.9–70.0) | 0.8 | 40.9 | (26.3–57.4) | 0.3 | 1.000b |
| 1 | 324 | 85.3 | (79.7–89.5) | 4.2 | 30.6 | (24.0–38.0) | 1.3 | [Reference] |
| 2–3 | 1217 | 93.0 | (90.5–94.9) | 14.5 | 31.8 | (28.5–35.3) | 4.6 | 1.000b |
| ≥4 | 2808 | 95.6 | (94.4–96.6) | 31.4 | 30.5 | (28.6–32.5) | 9.6 | 1.000b |
Abbreviations: CI, confidence interval; NHANES, National Health and Nutrition Examination Survey. a P values for univariate chi‐square test of independence between characteristics and hypertension awareness status. b P values for univariate t test for difference in hypertension awareness status against the reference category, Bonferroni adjusted (univariate P value times the number of comparisons).