Demographic characteristics and ultrasound features of the population at the time of intrauterine device removal
| Demographic characteristics/ultrasound features | n (%)* |
|---|---|
| Age (median, IQR) | 41 (37–49) |
| Menstrual history | |
| Postmenopausal | 9 (39) |
| Amenorrhoea | 8 (35) |
| Luteal phase of menstrual cycle | 3 (13) |
| Proliferative phase of menstrual cycle | 2 (9) |
| Irregular vaginal bleeding | 1 (4) |
| Parity | |
| Nulliparous | 6 (26) |
| Parity (median, range) | 2 (1–4) |
| Previous Caesarean section | 9 (39) |
| Uterine position | |
| Anteverted | 17 (74) |
| Retroverted | 6 (26) |
| Uterine morphology | |
| Normal | 14 (60) |
| Uterus enlarged by multiple IM/SS fibroids | 5 (22) |
| Uterus with a single IM/SS fibroid | 2 (9) |
| Single SM fibroid | 1 (4) |
| Adenomyosis | 1 (4) |
| IUD type | |
| Mirena® IUS | 17 (74) |
| Copper IUD | 5 (22) |
| Ring IUD | 1 (4) |
| IUD removal attempt before referral | 9 (39) |
| IUD position | |
| Correctly placed at the centre of the uterine cavity | 20 (87) |
| Embedded in the myometrium | 2 (9) |
| Partially expelled into the cervical canal | 1 (4) |
| Threads position | |
| Retracted into the upper half of the cervical canal | 10 (43) |
| Retracted into the lower half of the cervical canal | 6 (26) |
| Not visualised | 7 (30) |
*Values are n (%) unless stated otherwise.
IM, intramural; IQR, interquartile range; IUD, intrauterine device; IUS, intrauterine system; SM, submucous; SS, subserous.