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Table 1 Baseline characteristics of women in the two groups

From: Luteal blood flow as a predictive factor for methotrexate treatment outcomes in women with unruptured tubal pregnancy

Characteristics

Poor blood flow group (n = 56)

Abundant blood flow group (n = 59)

P-valuea

Maternal age (years)

32.4 ± 7.9

33.1 ± 9.3

0.413

BMI (kg/m2)

22.5 ± 4.9

23.2 ± 5.0

0.769

Number of pregnancies

2.2 ± 0.8

2.2 ± 0.7

0.802

Number of deliveries

1.0 ± 0.4

0.9 ± 0.5

0.613

Pregnancy method

  

0.866

 Natural conception

49 (87.5)

51 (86.4)

 

 ART

7 (12.5)

8 (13.6)

 

Risk factors of EP

 Previous EP

3 (5.4)

5 (8.5)

0.511

 Pregnant with IUD

4 (7.1)

3 (5.1)

0.645

Duration of pregnancy (days)

46.6 ± 7.1

48.3 ± 8.2

0.598

Clinical symptoms

 Abdominal pain

47 (83.9)

48 (81.4)

0.716

 Vaginal bleeding

51 (91.1)

54 (91.5)

0.931

Pretreatment β-hCG (mIU/mL)

1365.6(769.2–2824.5)

1403.2(813.1–2902.5)

0.497

Pretreatment progesterone (nmol/L)

26.7(15.8–46.9)

42.3(23.7–71.5)

0.041

Ultrasound findings

 Average diameter of ectopic mass (cm)

2.1(1.3–3.2)

2.3(1.6–3.5)

0.764

 Yolk sac

11 (19.6)

14 (23.7)

0.928

 Free fluid in Douglas cavity

44 (78.6)

46 (78.0)

0.937

  1. Values are presented as mean ± SD, median (quartile range) or number (percentage)
  2. BMI Body mass index, ART Assisted reproductive technology, EP Ectopic pregnancy, IUD Intrauterine device
  3. a Mann-Whitney U test, Chi-square test or Fisher’s exact test