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Table 1 Correlations of State-level BRFSS to State-level Rx

From: Correlating pharmaceutical data with a national health survey as a proxy for estimating rural population health

Disease Question vs. Prescription Matched 1999 2000 2001 2002 2003
BRFSS Q: "Has a doctor, nurse, or other health professional ever told you that you have angina or coronary heart disease?" vs. Heart disease prescriptions filled 0.438 a -- 0.662 a -- 0.613 a
N (states) 21 14 20 7 24
BRFSS Q: "Have you ever been told by a doctor, nurse or other health professional that you have high blood pressure?" vs. Heart disease prescriptions filled 0.537 a -- 0.635 a -- 0.733 a
N (50 states plus District of Columbia) 51 6 51 11 51
BRFSS Q: "Have you ever been told by a doctor, nurse or other health professional that you have high blood pressure?" vs. Stroke prescriptions filled 0.406 a -- 0.499 a -- 0.622 a
N (50 states plus District of Columbia) 51 6 51 11 51
BRFSS Q: "Have you ever been told by a doctor that you have diabetes?" vs. Diabetes prescriptions filled 0.588 a 0.609 a 0.625 a 0.695 a 0.713 a
N (50 states plus District of Columbia) 51 51 51 51 51
  1. a= Correlation is significant at the 0.01 level (2-tailed test)
  2. -- Data unavailable;
  3. Note: Correlations with populations of less than 30 are unstable and should be viewed with caution