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Table 2 Correlations of State-level BRFSS to State-level Prescription Drug Filled

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

 

1999

2000

2001

2002

2003

BRFSS Q: "Have you ever been told by a doctor that you have diabetes?" correlated with diabetes prescriptions filled

0.588 a

0.609 a

0.625 a

0.695 a

0.713 a

N (50 states plus the District of Columbia)

51

51

51

51

51

BRFSS Diabetes (State-level):

     

Meanb

5.59%

6.05%

6.45%

6.66%

7.14%

Standard Deviation

0.95%

0.87%

1.24%

1.20%

1.31%

Prescriptions-Filled (State-level):

     

Mean

3.38%

3.55%

3.76%

3.99%

4.13%

Standard Deviations

0.70%

0.73%

0.74%

0.78%

0.79%

Ratio of Rx/BRFSS rates

0.62

0.60

0.60

0.62

0.59

Prescriptions-Filled (County-level):

     

Mean

2.22%

2.33%

2.47%

2.62%

2.73%

Standard Deviation

1.34%

1.41%

1.49%

1.59%

1.64%

N (counties)

3,103

3,103

3,103

3,103

3,103

  1. a= Correlation is significant at the 0.01 level (2-tailed)
  2. b = Mean of the state-level rates, not a computed national rate.