Table 2 Variation in vaginal bleeding pattern in the two groups

Bleeding pattern at 12 months after insertion

n = 66

n = 84

0.272/0.602

1.2 (0.49–2.92)

Amenorrhea/infrequent bleeding

19/16 (53.0)

34/15 (58.4)

Frequent/prolonged bleeding

8/12 (15.1)

5/18 (27.3)

Bleeding pattern at 24 months after insertion

n = 46

n = 62

0.468/0.494

0.83 (0.32–2.13)

Amenorrhea/infrequent bleeding

6/16 (47.8)

14/18 (51.6)

Frequent/prolonged bleeding

7/8 (32.6)

4/12 (25.8)

Bleeding pattern at 36 months after insertion

n = 37

n = 54

0.620/0.431

1.01 (0.38–2.6)

Amenorrhea/infrequent bleeding

4/14 (48.6)

10/20 (55.6)

Frequent/prolonged bleeding

5/5 (27.0)

4/7 (20.4)