1. Pregnancy-related complications and perinatal outcomes resulting from transfer of cryopreserved versus fresh embryos in vitro fertilization: a meta-analysis 
Tingting Sha, M.D., Xunqiang Yin, M.D., Wenwei Cheng, M.D., Isaac Yaw Massey, M.D. 
Fertility and Sterility 
Volume 109, Issue 2, Pages e9 (February 2018)
DOI: /j.fertnstert
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Flow diagram showing the detailed selection of studies included in the meta-analysis.
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3. Figure 2
Pregnancy-related complications in women after frozen-thawed embryo transfer (FET) versus fresh embryo transfer (ET). CI = confidence interval; RR = risk ratio.
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4. Supplemental Figure 1
Low birth weight in live births generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
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Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

5. Supplemental Figure 2
Very low birth weight in live births generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

6. Supplemental Figure 3
Premature birth in live births generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

7. Supplemental Figure 4
Very preterm birth in live births generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

8. Supplemental Figure 5
Small for gestational age in live births generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

9. Supplemental Figure 6
Large for gestational age in live births generated with frozen-thawed embryo transfer versus fresh embryo transfer.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

10. Supplemental Figure 7
Perinatal mortality in pregnancies generated with the use of frozen-thawed versus fresh embryo transfer. Some of the studies provided both singleton (a) and twins (b) data. CI = confidence interval; RR = risk ratio.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

11. Supplemental Figure 8
Funnel plots of pregnancy-related complications. This figure tested the publication bias at three different statistics levels 90%, 95% and 99%: dark gray 0.1> P>.05, medium gray 0.05> P >.01, and light gray P< .01. GDM = gestational diabetes mellitus; PIH = pregnancy-induced hypertension.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions

12. Supplemental Figure 9
Funnel plots of perinatal outcomes. This figure tested the the publication bias at three different statistics levels 90%, 95% and 99%: dark gray 0.1> P>.05, medium gray 0.05> P>.01, and light gray P<.01. LGA = large for gestational age; SGA = small for gestational age.
Fertility and Sterility  , e9DOI: ( /j.fertnstert )
Copyright © 2017 American Society for Reproductive Medicine Terms and Conditions