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Table 2 Intra-practice correlation coefficients from four recent studies

From: Intra-cluster correlation coefficients in adults with diabetes in primary care practices: the Vermont Diabetes Information System field survey

Characteristic

VDIS

BEACH

CEART

MRC

HPOP

JOGS

Age

0.077

0.153–0.159

   

0.050

Sex

0.038

0.055–0.066

    

Height

0.019

 

0.053

0.048

  

Weight

0.011

 

0.020

0.012

 

0.043

Body mass index

0.011

 

0.031

0.022

 

0.081

Systolic blood pressure

0.042

 

0.048

  

0.018

Diastolic blood pressure

0.017

 

0.129

  

0.046

Heart rate

0.015

  

0.032

  

Total cholesterol

0.037

 

<0.001

  

0.004

LDL-cholesterol

0.045

 

0.006

   

LDL-cholesterol at goal

0.038

 

0.027

   

Triglycerides

0.014

 

0.024

   

Serum creatinine

0.080

 

0.00007

   

Tobacco use

0.005

 

0.036

0.006

 

0.055

Number of medications

0.028

   

0

 

Influenza vaccination

0.058

   

0.062

 

Depressed

0.007

   

0

 
  1. VDIS = Vermont Diabetes Information System (the present study) [7].
  2. BEACH = Bettering the Evaluation and Care of Health [3].
  3. CEART = Cholesterol Education and Research Trial [5].
  4. MRC = Medical Research Council Trial of the Assessment and Management of Older People in the Community [4].
  5. HPOP = Health Promotion for Older People [6].
  6. JOGS = Justification of Green Scripts trial [6]