Table 1 Maternal Characteristics among ART and Spontaneously Pregnant Groups.

From: Maternal and Live-birth Outcomes of Pregnancies following Assisted Reproductive Technology: A Retrospective Cohort Study

 

ART (n = 2641)

Controls (n = 5282)

IVF (n = 2327)

ICSI (n = 314)

Maternal age (years)

31.87 ± 3.96

31.62 ± 3.98

31.73 ± 3.21

Gravidity

 1

948 (40.7)ab

197 (62.7)a

2477 (46.9)

 ≥2

1379 (59.3)

117 (37.3)

2805 (53.1)

Parity

 1

2100 (90.2)a

292 (93.0)a

4328 (81.9)

 ≥2

227 (9.8)

22 (7.0)

954 (18.1)

Maternal education

 <Secondary school

71 (3.1)a

6 (1.9)

103 (1.9)

 Secondary school

943 (40.5)ab

98 (31.2)a

1293 (24.5)

 College graduate

1235 (53.1)a

187 (59.6)a

3560 (67.4)

 Post-graduate

78 (3.4)ab

23 (7.3)

326 (6.2)

Caesarean Section

2117 (91.0)ab

209 (66.6)

3210 (60.8)

Previous cesarean delivery

 Yes

64 (2.8)a

10 (3.2)a

431 (8.2)

 No

2263 (97.2)

304 (96.8)

4851 (91.8)

Pre-pregnant BMI

21.69 ± 2.82a

21.58 ± 2.73a

20.71 ± 2.74

Birth plurality

 Singletons

1450 (62.3)a

209 (66.6)a

5193 (98.3)

 Twins

877 (37.7)

105 (33.4)

89 (1.7)

  1. Note: Values are n (%) or mean (±standard deviation). ART, assisted reproductive technology; IVF, in vitro fertilization; ICSI, intracytoplasmic sperm injection; BMI, body mass index. Bonferroni corrected p-value = 0.016. aSignificantly different from control group (P < 0.016). bSignificantly different from ICSI group (P < 0.016).
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