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Table 1 General characteristics of the study participants

From: The influence of menstrual cycle and endometriosis on endometrial methylome

Microarray study

Patients with endometriosis (n = 31)

Disease-free women (n = 24)

 

Estonian patients

Oxford patients

Estonian controls

Oxford controls

(n = 24)

(n = 7)

(n = 17)

(n = 7)

 Age (years ± SD)

31.0 ± 4.0

36.0 ± 5.0

30.1 ± 3.2

34.2 ± 6.2

 BMI (mean, kg/m2 ± SD)

21.8 ± 3.1

23.6 ± 2.0

23.6 ± 4.2

26.0 ± 4.3

 Smoking (n)

0

2

0

0

 Stage I–II (n)

16

3

NA

NA

 Stage III–IV (n)

8

4

NA

NA

 Only endometrioma (n)

0

4

NA

NA

 Only peritoneal lesions (n)

14

3

NA

NA

 Peritoneal lesions together with endometrioma (n)

10

0

NA

NA

Menstrual cycle characteristics

 Menstrual phase (days 1–5), (n)

0

4

0

1

 Proliferative phase (days 6–14), (n)

0

2

0

3

 Early-secretory phase (days 15–20),(n)

7

0

0

1

 Mid-secretory phase (days 21–23), (n)

8

1

17

0

 Late-secretory phase (days 24–28), (n)

9

0

0

2

Validation study

Patients with endometriosis (n = 15)

Disease-free women (n = 14)

 Age (years ± SD)

31.0 ± 3.39

 

32.0 ± 2.7

 

 BMI (mean, kg/m2 ± SD)

20.0 ± 3.92

 

23.1 ± 5.73

 

 Smoking (n)

1

 

2

 

 Mid-secretory phase (days 21–23), (n)

7

 

7

 

 Late-secretory phase (days 24–28), (n)

8

 

7

 

 Stage I–II (n)

13

 

NA

 

 Stage III–IV (n)

2

 

NA

 
  1. NA not applicable