Priscilla White classification of Diabetes complicating pregnancy

Priscilla White was a pioneer in the treatment of Diabetes complicating pregnancy
She proposed the famous White classification
It emphasizes the importance of 3 factors
- Age of patient
- Duration of diabetes
- Presence of vasculopathy
It was modified by the American College of Obstetricians and Gynaecologists in 1986
The original version consists of 7 classes
The modified version splits class A – consisting of patients who developed diabetes during pregnancy – into 2 subcategories – A1 and A2
A1 corresponds to those who have carbohydrate intolerance detected during 100g 3 hour glucose tolerance test, but fasting and post prandial glucose levels are less than 105mg/dl and 120mg/dl respectively
In the A2 subcategory, the fasting and post prandial glucose levels are more than 105mg/dl and 120mg/dl respectively

Class	Onset	Fasting Plasma Glucose	2 hour postprandial glucose	Therapy
A1	Gestational	<105mg/dl	<120mg/dl	Diet
A2	Gestational	>105mg/dl	>120mg/dl	Insulin

Class	Age of Onset	Duration (years)	Vascular disease	Therapy
B	Over 20	<10	None	Insulin
C	10-19	10-19	None	Insulin
D	>20	>20	Benign retinopathy	Insulin
E	Any	Any	Nephropathy	Insulin
R	Any	Any	Proliferative retinopathy	Insulin
G	Any	Any	Cardiac involvement	Insulin