Table 2.

Characteristics of menstrual pattern in one-rod users.

Month	Menstrual pattern
	Amenorrhea	Shortened	Normal	Lengthened	p
1	23 (32.9%)	16 (22.9%)	21 (30%)	10 (14.2%)	0.52
3	25 (35.7%)	17 (24.3%)	20 (28.6%)	8 (11.4%)	0.29
6	31 (44.3%)	20 (28.6%)	12 (17.1%)	7 (10%)	0.77
12	29 (41.4%)	11 (15.7%)	24 (34.3%)	6 (8.6%)	0.94
18	24 (34.3%)	14 (20%)	21 (30%)	11 (15.7%)	0.54
24	21 (30%)	4 (5.7%)	32 (45.7%)	13 (18.6%)	0.40