LIN28B Polymorphisms Confer a Higher Postoperative Recurrence Risk in Reproductive-Age Women with Endometrial Polyps

Table 1

Clinical and demographic characteristics of endometrial polyps patients with postoperative recurrence and nonrecurrence.

Variables	Recurrence, (%)	Nonrecurrence, (%)	^a
All subjects	44 (100.0)	307 (100.0)
Age, years
<33	23 (52.3)	184 (59.9)	0.352
≥33	21 (47.7)	123 (40.1)
Menarche age (years)
<13	2 (4.5)	27 (8.8)	0.506
≥13	42 (95.5)	280 (91.2)
Menstrual cycle (days)
23-35	40 (90.9)	264 (86.0)	0.305
>35	4 (9.1)	43 (14.0)
Menstrual duration (days)
≤7	33 (75.0)	277 (90.2)	0.934
>7	11 (25.0)	30 (9.8)
Dysmenorrhea	6 (13.6)	61 (19.9)	0.325
Abnormal uterine bleeding	4 (9.1)	10 (3.3)	0.151
Endometritis	16 (36.4)	101 (32.8)	0.648
Pelvic infection	2 (4.5)	7 (2.3)	0.705
Salpingitis	0 (0.0)	10 (3.3)	0.465
Endomotriosis	1 (2.3)	5 (1.6)	0.754
Intrauterine adhesion	1 (2.3)	7 (2.3)	0.591
Gravidities
0	16 (36.4)	126 (41.0)	0.470
1	12 (27.3)	81 (26.4)
≥2	16 (36.4)	100 (32.6)
Abortion
0	28 (63.6)	208 (67.8)	0.610
1	11 (25.0)	66 (21.5)
≥2	5 (11.4)	33 (10.8)
Deliveries
0	20 (45.5)	164 (53.4)	0.429
1	15 (34.1)	82 (26.7)
≥2	9 (20.5)	61 (19.9)
Red blood cells (×10^12/L)
<4.37	23 (52.3)	156 (50.8)	0.602
≥4.37	21 (47.7)	151 (49.2)
Hemoglobin (g/L)
<126	28 (63.64)	146 (47.56)	0.019
≥126	16 (36.36)	161 (52.44)
White blood cells (×10^9/L)
<6.09	25 (56.82)	150 (48.86)	0.206
≥6.09	19 (43.18)	157 (51.14)
Number of polyps
Single polyp	21 (47.73)	196 (63.84)	0.059
Multiple polyps	23 (52.27)	111 (36.16)
Diameter of polyps (cm)
<1.2	18 (40.9)	210 (68.4)	0.013
≥1.2	26 (59.1)	97 (31.6)
Endometrial thickness (cm)
<0.9	22 (50.0)	153 (49.2)	0.984
≥0.9	22 (50.0)	154 (50.8)
Average follow-up days

Notes: ^aChi-square tests or Fisher exact test.