| Table 1. Summary of articles included | ||
| Author | Methodology | Principal findings |
| Kristiansson et al., 2007 | Prospective cohort analysis performed in Sweden between 1981-2001 | No increase in the risk of developing postmenopausal cancer in women with a delivery after IVF compared with controls |
| Sanner et al., 2009 | Retrospective cohort analysis of 2,768 women with infertility treatment between 19761-1975. The main comparison was the use of gonadotropins and clomiphene citrate. | Five-fold increase in the risk of cancer in women who took gonadotropins |
| Källén et al., 2011 | Retrospective cohort analysis of women with delivery after IVF between 1982-2006. Cases of gynecologic cancer were found by cross-referencing the patients in the cohort against the Cancer Database. | Low risk of breast and cervical cancer.No change in the risk of other types of cancer. |
| van Leeuwen et al., 2011 | Retrospective cohort analysis | Data suggest an increase of cancer after controlled ovarian hyperstimulation |
| Yil-Kuha et al., 2012 | Retrospective cohort analysis of 18,350 Finnish women treated between 1996-1998. Cancer cases were identified from a cancer database | Three-fold increase in the risk of ovarian cancer in women offered IVF. |
| Stewart et al., 2012 | Retrospective cohort analysis performed in Australia between 1982-2002 | Increased risk of breast cancer in women offered ART at younger ages |
| Stewart et al., 2013 | Retrospective cohort analysis of 21,639 Australian patients diagnosed with infertility or offered infertility treatment; the individuals were cross-referenced to a cancer database | Women with a history of ART are at higher risk of having borderline ovarian tumors. |
| Stewart et al., 2013 | Retrospective cohort analysis in Australia, between 1982-2002 | No evidence of increased risk of ovarian cancer after post-IVF delivery. |
| Reigstad et al., 2015 | Retrospective cohort analysis of 808,834 Norwegian women after delivery, linked to the national cancer database. (1984-2010) | Increased risk of breast cancer in women with post-ART deliveries versus women with spontaneous conception delivery. |
| Reigstad et al., 2015 | Retrospective cohort analysis of 806, 248 women registered in the Norway Birth Register between 1984 and 2010. Gynecologic tumors were identified by cross-referencing the enrolled individuals to the Cancer Database | Increased risk of cancer after ART; however, after correction for confounding factors, the difference was not significant. |
| Kessous et al., 2016 | Retrospective cohort study of 106,031 Israeli women with a history of either IVF or ovulation induction. | Increased risk of gynecologic cancer in women with history of IVF |