Table 2 Comparison of perinatal outcomes between adolescent mothers 12–19 and mothers 20–34 years of age

Gestational age^a

 < 37 weeks

8564 (9.0)

1068 (10.2)

7496 (8.8)

1.18 (1.10–1.26)

1.14 (1.06–1.23)

\(\ge\) 37 weeks

86,839 (91.0)

9358 (89.8)

77,481 (91.2)

1

1

Birth outcome

Live birth

95,403 (95.2)

10,426 (94.5)

84,977 (95.3)

1

1

Stillbirth

3102 (3.1)

359 (3.3)

2743 (3.1)

1.07 (0.95–1.19)

1.08 (0.95–1.22)

Spontaneous Abortion

1684 (1.7)

243 (2.2)

1441 (1.6)

1.37 (1.19–1.58)

0.94 (0.83–1.11)

Infant birth weight (\(\ge\) 37 weeks)^a

 < 2500 g

6572 (7.6)

986 (10.5)

5586 (7.2)

1.51 (1.41–1.63)

1.46 (1.34–1.59)

\(\ge\) 2500 g

80,267 (92.4)

8372 (89.5)

71,895 (92.8)

1

1

ENND (\(\ge\) 37 weeks)^a,b

Yes

441 (0.5)

82 (1.0)

359 (0.5)

1.96 (1.57–2.45)

1.58 (1.23–2.02)

No

82,159 (99.5)

8511 (99.0)

73,648 (99.5)

1

1

Birth defect

No

99,674 (99.5)

10,954 (99.3)

88,720 (99.5)

1

1

Yes^¥

515 (0.5)

74 (0.7)

441 (0.5)

1.36 (1.06–1.74)

1.36 (1.02–1.80)