Clinical and laboratory features associated with heavy menstrual bleeding and/or increased menstrual blood loss (MBL)
| Clinical and laboratory features . | Odds ratio (95% CI) or P value . |
|---|---|
| Features associated with MBL >80 mL3 | |
| Finding | |
| Changing protection more often than hourly | 3.08 (1.4-68) |
| Clots >1.1 inch in diameter | 4.80 (1.9-12.2) |
| Low ferritin | 5.71 (1.9-17.4) |
| Features associated with increased mean MBL3 | |
| Finding | |
| Subjective report of “very heavy” periods | <.001 |
| Hemoglobin <12.0 g/dL | .002 |
| Need to change protection during thenight | <.001 |
| Leaking through protection | <.001 |
| Need to wear double protection | <.001 |
| Clinical and laboratory features . | Odds ratio (95% CI) or P value . |
|---|---|
| Features associated with MBL >80 mL3 | |
| Finding | |
| Changing protection more often than hourly | 3.08 (1.4-68) |
| Clots >1.1 inch in diameter | 4.80 (1.9-12.2) |
| Low ferritin | 5.71 (1.9-17.4) |
| Features associated with increased mean MBL3 | |
| Finding | |
| Subjective report of “very heavy” periods | <.001 |
| Hemoglobin <12.0 g/dL | .002 |
| Need to change protection during thenight | <.001 |
| Leaking through protection | <.001 |
| Need to wear double protection | <.001 |
CI, confidence interval.