Table 1.
Characteristics of included studies.
| Author, Y (study period) | City, country | Study design | Setting | Time of diagnosis | Diagnosis COVID-19* | Severity of COVID-19 | The number of patients included | Type of transfer | Reference | |
|---|---|---|---|---|---|---|---|---|---|---|
| Infection | Control | |||||||||
| Wang M et al., 2021(2020.5-2021.1) | Wuhan, China | Retrospective cohort study | Single-center | At least 4 months between the first diagnosis and IVF treatment | RT-PCR and antibody | Asymptomatic or mild | 65 | 195 | Fresh embryo transfer | (23) |
| Albeitawi S et al., 2022(2021.9-2021.11) | Irbid, Jordan | Retrospective study | Multicenter | NA | NA | NA | 52 | 98 | Fresh embryo transfer | (24) |
| Youngster M et al., 2022 a (2021.1-2012.6) | Zerifin and Herzliya, Israel | Retrospective cohort study | Multicenter | The time interval from infection to oocyte retrieval: 8-348 days | NA | Asymptomatic or mild | 121 | 121 | Fresh embryo transfer | (25) |
| Wang M et al., 2022(2020.5-2021.1) | Wuhan, China | Retrospective cohort study | Single-center | Three diagnostic times: the first visit, before the COH procedure, and before oocyte retrieval | RT-PCR and antibody | Asymptomatic, mild, or moderate | 50 | 148 | Fresh embryo transfer | (26) |
| Youngster M et al., 2022 b (2021.1-2021.6) | Zerifin, Israel | Retrospective cohort study | Single-center | Within 1 year before embryo transfer | RT-PCR | NA | 41 | 41 | Frozen embryo transfer | (27) |
| Aizer A et al., 2022(2021.1-2021.8) | Tel Aviv, Israel | Retrospective cohort study | Single-center | NA | NA | NA | 26 | 234 | Frozen embryo transfer | (28) |
| Braga DPAF et al., 2022(2019.3-2021.6) | Sao Paulo, Brazil | Historical cohort study | Single-center | Within 6 months before IVF treatment | Antibody | NA | 22 | 66 | Fresh embryo transfer | (29) |
| Adler Lazarovits C et al., 2023(2021.10-2021.11) | Jerusalem, Israel | Prospective observational study | Single-center | NA | RT-PCR | NA | 21 | 13 | Fresh and frozen embryo transfer | (30) |
*Three methods for diagnosis of COVID-19: RT-PCR, antibody, and other.
COVID-19, coronavirus disease 19; IVF, in vitro fertilization; RT-PCR, reverse transcription-polymerase chain reaction; NA, not available.