Effect of Mirena placement on reproductive hormone levels at different time intervals after artificial abortion

Table 1 Comparison of general information between the control and study groups

Group	Cases	Age (yr)	Pregnancy times (Times)	BMI (kg/m2)	Menstrual cycle (d)
Observation group	56	27.84 ± 3.03	2.60 ± 0.45	22.40 ± 3.11	30.21 ± 4.54
Control group	63	28.15 ± 2.94	2.41 ± 0.58	21.54 ± 4.03	29.62 ± 5.80
t value		-0.566	1.978	1.291	0.612
P value		0.573	0.050	0.199	0.541

BMI: Body mass index.

Table 2 Comparison of intrauterine device continuation and removal rates, reproductive tract infections, abnormal menstrual volumes, and prolonged menstrual period between the two groups, n (%)

Group	Observation group (n = 56)	Control group (n = 63)	χ2	P value
Continuation rate	53 (94.64)	59 (93.65)	0.053	0.818
Ring removal rate	1 (1.79)	2 (3.17)	0.000	1.000
Bacterial vaginitis	6 (10.71)	10 (15.87)	0.678	0.410
Trichomonal vaginitis	2(3.57)	3 (4.76)	0.000	1.000
Cervicitis	8 (14.29)	11 (17.46)	0.223	0.637
Abnormal menstrual volume	3 (5.36)	4 (6.35)	-	1.000
Prolonged menstruation	2 (3.57)	3 (4.76)	-	1.000
Sexual intercourse pain	1 (1.79)	2 (3.17)	-	1.000

-: The use of Fisher's exact test.

Table 3 Comparison of sex hormone levels, uterine volume, and sex life quality scores between the two groups

Group		Observation group (n = 56)	Control group (n = 63)	t value	P value
E2 (pg/mL)		45.50 ± 7.13	42.91 ± 8.10	1.841	0.068
FSH (mIU/mL)		13.60 ± 3.24	14.54 ± 3.11	-1.614	0.109
LH (mIU/mL)		15.11 ± 2.08	14.60 ± 3.55	0.941	0.349
Uterine volume (cm3)	Before placement	120.33 ± 6.93	119.28 ± 8.03	0.759	0.449
	1 mo after placement	122.10 ± 9.10	121.28 ± 8.28	0.515	0.608
	6 mo after placement	121.15 ± 8.82	122.02 ± 9.11	-0.528	0.599
Sexual life quality scores	Sexual desire (points)	25.68 ± 2.10	25.10 ± 2.81	1.262	0.209
	Sexual activity (points)	38.28 ± 4.48	38.10 ± 5.21	0.201	0.841
	Sexual satisfaction (points)	30.20 ± 3.10	29.82 ± 2.88	0.693	0.49

E2: Estradiol; FSH: follicle stimulating hormone; LH: luteinizing hormone.