| Menstrual blood loss (alkaline haematin method) | |
|---|---|
| Study | |
| Irvine 1998 | Median menstrual blood loss (range) after 3 months of NET: 20 mls (4‐137) Median menstrual blood loss (range) after 3 months of LNG IUS: 6 mls (0‐284) p=0.033, t=315.5, Wilcoxon rank‐sum test, n=44 |
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