TABLE 5.
Sensitivity of screening tools for white (n = 169) and black (n = 35) women
| Sensitivitya | ||
|---|---|---|
| Variable | White women | Black women |
| Screening tool | ||
| Hemostatic abnormalityb | 87 (72–92) | 94 (79–99) |
| Low von Willebrand factor | 70 (35–93) | 100 (3–100) |
| Platelet function defects | 87 (78–93) | 93 (78–99) |
| Screening tool combined with pictorial blood assessment score >185 | ||
| Hemostatic abnormalityb | 93 (86–97) | 100 (89–100) |
| Low von Willebrand factor | 90 (56–100) | 100 (3–100) |
| Platelet function defects | 92 (84–97) | 100 (88–100) |
| Screening tool combined with ferritin level ≤20 ng/mL | ||
| Hemostatic abnormalityb | 90 (85–96) | 100 (89–100) |
| Low von Willebrand factor | 90 (74–100) | 100 (3–100) |
| Platelet function defects | 88 (81–95) | 100 (88–100) |
A simple screening tool in combination with a ferritin or a pictorial blood assessment chart is useful for the stratification of women with menorrhagia for hemostatic evaluation.
a
Data are given as percentage (95% confidence interval);
b
Platelet function defects, von Willebrand factor antigen, or Von Willebrand factor ristocetin cofactor <50, coagulation defects, and prolonged platelet function analyzer–100 time.