Erez Pregnancy-Specific DIC Score
The Erez pregnancy-specific DIC score (Erez and colleagues, PLoS One 2014), a population-based modification of the International Society on Thrombosis and Hemostasis DIC score for PREGNANT WOMEN.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Platelet count
- 75 x10^9/L
- Prothrombin time DIFFERENCE IN SECONDS
- 2.0 seconds
- Fibrinogen
- 2.0 g/L
Result: Erez pregnancy-specific DIC score 52 of 52.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Platelets
- Below 50 = 1; 50-100 = 2; above 100-185 = 1; above 185 = 0. NON-MONOTONIC as published.
- PT difference
- SECONDS, patient minus control. Below 0.5 = 0; 0.5-1.0 = 5; above 1.0-1.5 = 12; above 1.5 = 25. NOT an INR.
- Fibrinogen
- Below 3.0 g/L = 25; 3.0-4.0 = 6; above 4.0-4.5 = 1; above 4.5 = 0.
- Cutoff
- 26 or more indicates DIC. Maximum 52. ISTH uses 5: the cutoffs are NOT interchangeable.
- Reachability
- Unreachable without a fibrinogen below 3.0 or a PT difference above 1.5. Everything else totals at most 20.
- Omitted
- D-dimer and FDPs are deliberately absent: they rise in normal pregnancy and would false-positive.
- Scope
- Below the cutoff does NOT exclude DIC. Does not identify the cause or indicate delivery or blood products.
What you enter
- Platelet count.
- Prothrombin time DIFFERENCE IN SECONDS: the patient value MINUS the laboratory control.
- Fibrinogen
Full field descriptions
- Platelet count [Below 50 x10^9/L = 1; 50 to 100 x10^9/L = 2; Above 100 to 185 x10^9/L = 1; Above 185 x10^9/L = 0]. NON-MONOTONIC as published: below 50 scores fewer points than 50 to 100.
- Prothrombin time DIFFERENCE IN SECONDS: the patient value MINUS the laboratory control. NOT a ratio and NOT an INR - passing either adds 25 unearned points [Below 0.5 seconds = 0; 0.5 to 1.0 seconds = 5; Above 1.0 to 1.5 seconds = 12; Above 1.5 seconds = 25]
- Fibrinogen [Below 3.0 g/L = 25; 3.0 to 4.0 g/L = 6; Above 4.0 to 4.5 g/L = 1; Above 4.5 g/L = 0]
How this is calculated
Erez O, Novack L, Beer-Weisel R, et al. DIC score in pregnant women: a population based modification of the International Society on Thrombosis and Hemostasis score. PLoS One. 2014;9(4):e93240. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.