Table 2.
Quality assessment of the included studies according to the Newcastle-Ottawa Scale for cohort studies
| Author | Year | Selection | Comparability | Outcome |
|---|---|---|---|---|
| Bertero et al13 | 2021 | ★★ | ★ | ★★★ |
| Cribiù et al17 | 2020 | ★ | ★★ | ★★ |
| Lu-Culligan et al18 | 2021 | ★ | ★ | ★ |
| Debelenko et al19 | 2021 | ★★ | ★★ | ★★ |
| Facchetti et al20 | 2020 | ★ | ★ | ★ |
| Gao et al23 | 2021 | ★★ | ★ | ★★ |
| Gulersen et al24 | 2020 | ★★★ | ★★ | ★★ |
| He et al26 | 2020 | ★★ | ★ | ★★ |
| Hecht et al28 | 2020 | ★ | ★★ | ★★ |
| Jani et al32 | 2021 | ★ | ★ | ★★ |
| Patberg et al44 | 2021 | ★★ | ★★ | ★★★ |
| Prabhu et al47 | 2020 | ★★ | ★ | ★★ |
| Rebutini et al49 | 2021 | ★★ | ★★ | ★★★ |
| Resta et al50 | 2021 | ★★ | ★ | ★★ |
| Blasco Santana et al52 | 2021 | ★★ | ★★ | ★★★ |
| Schwartz et al53 | 2021 | ★ | ★ | ★★ |
| Shanes et al54 | 2020 | ★★ | ★★ | ★★★ |
| Singh et al55 | 2021 | ★ | ★ | ★★ |
| Smithgall et al57 | 2020 | ★★ | ★ | ★★ |
| Tasca et al59 | 2021 | ★★ | ★ | ★★ |
A study can be awarded a maximum of 1 star for each numbered item within the selection and outcome categories, and a maximum of 2 stars can be given for the comparability category.
Di Girolamo. SARS-CoV-2 infection and placenta. Am J Obstet Gynecol MFM 2021.