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Table 5 Comparison of ICC clinical outcomes between single physician versus multiple physicians practices

From: Intracluster correlation coefficients for sample size calculations related to cardiovascular disease prevention and management in primary care practices

Clinical Outcome

ICC

ICC

Ratio (Single/Multiple)

(Single Physician)

(Multiple Physicians)

N = 50

N = 34

All patients

SBP

0.082

0.020

4.10

DBP

0.133

0.051

2.60

LDL

0.042

0.029

1.44

HDL

0.024

0.024

1

FBG

0.027

0.020

1.35

egfr

0.019

0.010

1.90

acr

0.000*

0.000*

---

Patients with Hypertension

sbp

0.086

0.020

4.30

dbp

0.130

0.042

3.10

Patients with Dyslipidemia

LDL

0.044

0.023

1.91

HDL

0.019

0.024

0.80

Patients with Diabetes

SBP

0.061

0.015

4.10

DBP

0.108

0.053

2.04

LDL

0.068

0.039

1.74

HDL

0.041

0.047

0.87

HbA1c

0.019

0.000

---

FBG

0.017

0.034

0.50

egfr

0.016

0.018

0.89

Patients with Chronic Kidney Disease

egfr

0.060

0.029

2.07

SBP

0.092

0.055

1.67

DBP

0.131

0.078

1.68

Patients with Coronary Artery Disease

SBP

0.083

0.020

4.15

DBP

0.155

0.084

1.85

LDL

0.048

0.054

0.89

HDL

0.000*

0.038

---

Patients who Smoke

SBP

0.008

0.000

---

DBP

0.114

0.020

5.7

  1. *Negative ICCs were considered a result of sampling error and were set to zero SBP – Systolic Blood Pressure; DBP – Diastolic Blood Pressure; LDL – Low Density Lipoprotein; HDL – High Density Lipoprotein; FBG – Fasting Blood Glucose; eGFR – Estimated Glomerular Filtration Rate; ACR – Albumin-to-Creatinine ratio; HbA1c – Hemoglobin A1c.