Table 1 The clinical characteristics of patients with bilateral and unilateral ovarian endometrioas and the healthy women

Median age [yers] (IQR^b)

35,50 (17,00)

32,00 (15,00)

32,00 (18,00)

NS^c

Mean BMI [kg/m²] (±SD^a)

22,72 (±1,61)

23,19 (±2,13)

23,41 (±2,51)

NS^c

Endometrial cyst localization

 Right ovary

78 (100,00 %)

93 (59,23 %)

NA^e

NA^e

 Left ovary

78 (100,00 %)

64 (40,77 %)

Mean volume of ovarian endometriomas [cm³]

6,23 (±1,12)

6,41 (±1,18)

NA^e

NS^c

Mean age of first menstrual period [years] (±SD^a)

11,52 (±1,52)

11,38 (±1,64)

11,45 (±1,81)

NS^c

Mean duration of menstrual cycle [days] (±SD^a)

28,50 (±2,5)

29,50 (±3,0)

28,00 (±2,0)

NS^c

Menstrual cycles

42 (53,85 %) /

116 (73,89 %) /

124 (83,22) /

<0,001^d

 Regular/Irregular

36 (46,15 %)

41 (26,11 %)

25 (16,78 %)

Menstrual cycles

38 (48,72) /

42 (26,75 %) /

32 (21,48) /

<0,001^d

 Painful/painless

40 (51,28 %)

115 (73,25 %)

117 (78,52 %)

Mean duration of menstruation [days]

4,25 (±1,52)

4,12 (±1,31)

4,32 (±0,97)

NS^c

Type of menstrual bleeding

NS^c

 Scant

7 (11,54 %)

12 (7,64 %)

8 (10,69 %)

 Normal

52 (66,67 %)

115 (73,25 %)

117 (75,52 %)

 Heavy

17 (21,79 %)

30 (19,11 %)

24 (13,79 %)

Median number of gestations (IQR^b)

1,0 (1,0)

2 (2)

3 (2)

0,028^d

Median number of deliveries (IQR^b)

0,5 (1)

2 (1)

3 (1)

0,016^d