Variable

Trichorionic triplets N = 119

Dichorionic triplets N = 53

p-value

Age, mean (SD)

35.2 (4.5)

34.8 (5.4)

0.529

BMI, mean (SD)

25.0 (6.4)

26.1 (6.3)

0.308

Gravida, mean (SD)

1.3 (1.5)

1.2 (1.5)

0.379

Nulliparious

78 (65.5)

29 (54.7)

0.176

Prior preterm delivery, n (%)

12 (10.1)

1 (1.9)

0.067

Race, n (%)

Non-Hispanic White

89 (74.8)

46 (86.6)

African American

4 (3.4)

2 (3.8)

Hispanic

7 (5.9)

1 (1.9)

Asian/Pacific Islander

12 (10.1)

4 (7.5)

Unknown

7 (5.9)

-

0.256

Insurance, n (%)

86 (100)

50 (98.0)

0.372

Prior ART, n (%)

96 (80.7)

30 (56.6)

0.001^*

Number of prior ART, mean (SD)

2.4 (2.4)

1.7 (2.0)

0.060

Number of prior IVF, mean (SD)

0.9 (1.4)

0.8 (1.2)

0.441

Number of prior FET, mean (SD)

0.2 (0.6)

0.4 (0.9)

0.277

Number of prior IUI, mean (SD)

1.2 (1.6)

0.5 (1.1)

0.007^*