Comparison 1. Levonorgestrel‐releasing intrauterine device (LNG‐IUS) versus low dose combined oral contraceptive (COC).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1.1 Menstrual blood loss (MBL) reduction at 12 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
1.1.1 Percentage reduction of MBL by the alkaline hematin test	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
1.1.2 Percentage reduction in pictorial assessment chart (PBAC) score	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
1.2 Haemoglobin level (g/dL) at 12 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
1.3 Percentage reduction in fibroid size at 12 months	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected