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Table 2 Prevalence of risk factors, accuracy of reporting, and rates of misreporting

From: Characterising the extent of misreporting of high blood pressure, high cholesterol, and diabetes using the Australian Health Survey

   High blood pressure High cholesterol Diabetes
Prevalence Self-reported 17.4 (16.5–18.3) 12.2 (11.5–13.0) 6.1 (5.6–6.7)
Measured to have risk factor 23.9 (22.9–24.9)* 37.3 (36.2–38.4)* 4.5 (4.0–4.9)*
Accuracy of self-report Overreported: Self-reported but no measured risk factor 9.8 (9.1–10.5) 8.1 (7.5–8.8) 2.9 (2.6–3.3)
Underreported: Measured to have risk factor but did not self-report 16.4 (15.5–17.2) 33.2 (32.1–34.3) 1.3 (1.0–1.5)
Accurate, has disease: Self-reported and measured to have risk factor 7.6 (7.0–8.2) 4.1 (3.6–4.5) 3.2 (2.8–3.6)
Accurate, does not have disease: Did not self-report and no measured risk factor 66.3 (65.2–67.3) 54.6 (53.4–55.7) 92.6 (92.0–93.2)
Misreporting rate Proportion of those measured to have risk factor that did not self-report 68.4 (66.2–70.6) 89.0 (87.9–90.2) 28.6 (23.7–33.6)
Proportion of those who self-reported that had no measured risk factor 56.5 (53.8–59.2) 66.6 (63.5–69.7) 48.0 (43.3–52.6)
  1. Notes: Proportion of people (95 % confidence intervals in brackets)
  2. *The difference between self-reported and measured prevalence was statistically significant (p < 0.001)