| FACTOR | OTHER NAME | INCIDENCE | BLEEDING SEVERITY |
| Factor I | fibrinogen | 1 in 1,000,000 | Usually mild, except with complete absence of
fibrinogen |
| Factor II | prothrombin | 1 in 1,000,000 | Usually mild |
| Factor V | parahemophilia | 1 in 1,000,000 | Usually mild |
| Combined F V and F VIII |
| 1 in 1,000,000 | Usually mild |
| Factor VII | Alexander's | 1 in 1,000,000 | Severe when Factor VII levels are low |
| Factor VIII | Hemophilia | 1 in 10,000 | Severe when Factor VIII levels are below 1% |
| Factor IX | Hemophilia B | 1 in 50,000 | Severe when Factor IX levels are below 1% |
| Factor X | Stuart-Prower | 1 in 500,000 | Moderate to severe when Factor X levels are below
10% |
| Factor XI | Hemophilia C | 1 in 100,000 | Mild to moderate when Factor XI levels are below
15% |
| Factor XIII |
| 1 in 3,000,000 | Severe |
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