Diabetes

Diabetes

Based on
Wilson PW, Meigs JB, Sullivan L, Fox CS, Nathan DM, D’Agostino RB. Prediction of incident diabetes mellitus in middle-aged adults: the Framingham Offspring Study. Archives of internal medicine. 2007 May 28;167(10):1068-74. PMID:17533210.

Outcome
Type 2 Diabetes Mellitus (fasting blood glucose at or above 126 mg/dL)

Duration of follow-up
Average of 7-years, 8-year risk prediction

Population of interest
Individuals 45 to 64 years

Predictors

  • Age categories
  • Gender
  • Fasting Glucose above 100 mg/dL
  • BMI (Body Mass Index) categories
  • HDL cholesterol categories
  • Triglyceride above 150 mg/dL
  • Blood Pressure categories
  • Parental History of Diabetes

Logistic Regression Model with Coefficients

Variable Beta* OR 95% CI p-value
Intercept -5.517
Age, y
<50 Referent
50-64 -0.018 0.98 (0.64 – 1.50) 0.93
≥65 -0.081 0.92 (0.54 – 1.59) 0.77
Male -0.010 0.99 (0.70 – 1.41) 0.95
Parental history of diabetes mellitus 0.565 1.76 (1.17 – 2.64) 0.006
BMI
<25 Referent
25.0-29.9 0.301 1.35 (0.78 – 2.34) 0.28
≥30.0 0.92 2.50 (1.45 – 4.30) 0.001
Blood pressure >130/85mmHG or receiving therapy 0.498 1.65 (1.10 – 2.46) 0.02
HDL-C level <40 mg/dL in men or <50 mg/dL in women 0.944 2.57 (1.75 – 3.77) <.001
Triglyceride level ≥150 mg/dL 0.575 1.78 (1.22 – 2.59) 0.003
Fasting glucose level 100-126 mg/dL 1.980 7.25 (4.89 – 10.74) <.001

*Conversion from beta coefficient to predicted probability of diabetes in 8 years

p = 
1
1+e -z

z = ß0 + ß1x1 + ß2x2 + … + ßkxk
where z indicates regression equation with beta coefficients taken from table above (ß0 as intercept) and x’s indicating values of corresponding risk factor (0 or 1 for each category)

Point Designation based on predictors for 8-Year Risk of Type 2 Diabetes in Middle-aged Adults

Points
Fasting glucose level 100-126 mg/dL 10
BMI 25.0-29.9 2
BMI >30.0 5
HDL-C level <40 mg/dL in men or <50 mg/dL in women 5
Parental History of diabetes mellitus 3
Triglyceride level >150 mg/dL 3
Blood pressure >130/85 mmHG or receiving treatment 2

Given Total Points from Previous Table, there is an APPROXIMATE Percentage Risk for Type 2 Diabetes in Middle-aged Adults

Total Points 8 Year Risk, %
≤10 <3
11 4
12 4
13 5
14 6
15 7
16 9
17 11
18 13
19 15
20 18
21 21
22 25
23 29
24 33
≥25 >35

Diabetes Risk Calculator

Gender:
M   F
Age (years):
Systolic Blood Pressure (mmHg):
Diastolic Blood Pressure (mmHg):
Treatment for Hypertension:
Yes   No
Height (inches):
Weight (pounds):
Your BMI: 0
HDL-C Level (mg/dL):
Triglyceride Level (mg/dL):
Fasting Glucose Level (mg/dL):
Parental Diabetes:
Yes  No

8 Year Risk

0%