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Table 3 Pregnancy-related outcomes stratified by study mean maternal age

From: Pregnancy outcomes in women with kidney transplant: Metaanalysis and systematic review

Study mean maternal age (years)
  < 25 25–29 30–34 ≥35
Number of papers 3 22 35 1
Number of pregnancies 103 723 3474 11
Mean maternal age (year) 23.3 27.4 30.2 36.0
Pregnancy Outcomes
 Live birth 75.8% 75.8% 73.9% na
 Induced abortion 14.0% 11.3% 11.0% na
 Spontaneous abortion 19.8% 16.0% 13.3% 18.2%
 Still birth 2.9% 5.3% 3.6% 9.1%
 Neonatal deaths na 5.4% 3.0% na
 Cesarean section 48.0% 68.3% 63.6% na
Maternal Outcomes
 Preeclampsia 17.1% 13.7% 26.5% 27.3%
 Pregnancy induced hypertension 16.5% 25.2% 23.4% na
 Gestational diabetes na 5.8% 7.0% na
Fetal Outcomes
 Pre-term delivery na 46.4% 47.4% na
 Mean gestation time (weeks) 35.5 35.5 34.6 na
 Birth weight (grams) 2460.0 2607.7 2456.9 na
Graft Outcomes
 Acute rejection 3.8% 3.3% 5.8% na
 Graft loss na 12.1% 10.4% 27.3%
  1. *na not available