Table 1b.
Study descriptions of bariatric surgery and endometrial cancer risk
| Author, year | Study type | Population | Study period | Comparison | Developed endometrial cancer | Did not develop endometrial cancer | Total N | Age (mean) |
Surgical procedure type |
|---|---|---|---|---|---|---|---|---|---|
| Mackenzie, 2018 | retrospective cohort | Hospital Episode Statistics (England) | 1997–2012 | bariatric surgery vs. propensity-matched obese individual without surgery | 18 | 7051 | 7069 | 42 | gastric bypass, gastric banding, and sleeve gastrectomy |
| 84 | 6985 | 7069 | 42 | ||||||
| Anveden, 2017 | prospective cohort | Swedish Obese Subjects Study (Sweden) | 1987–2013 | bariatric surgery vs. | 28 | 1392 | 1420 | 47.2 | gastric banding, vertical banded gastroplasty, gastric bypass |
| conventional obesity treatment | 48 | 1399 | 1447 | 48.8 | |||||
| Schauer, 2017 | retrospective cohort | Kaiser Permanente | 2004–2014 | bariatric surgery vs. | 322 | 71568 | 17998 | 45.0 | gastric bypass, sleeve gastrectomy, laproscopic adjustable band, biliopancreatic diversion vertical gastric banding |
| obese individual without bariatric surgery | 53892 | 45.1 | |||||||
| Ward, 2014 | retrospective cohort | University Health System Consortium (U.S) | 2009–2013 | bariatric surgery vs. | 424 | 10373 | 10797 | 52.6 | history of prior bariatric surgery |
| obese women with no history of bariatric surgery | 43291 | 7284770 | 7328061 | ||||||
| Ostlund, 2010 | retrospective cohort | Swedish Patient Register (Sweden) | 1980–2006 | bariatric surgery vs. standardized incidence rate in general population | 54 | 10067 | 10121 | NA | gastric banding, vertical banding gastroplasty, or gastric bypass |
| Adams, 2009 | retrospective cohort | Utah (U.S) | 1984–2007 | bariatric surgery vs. | 14 | 5640 | 5654 | 38.9 | roux-en-y gastric bypass |
| severe obese adults | 98 | 7774 | 7872 | 39.1 | |||||
| Christou, 2008 | retrospective cohort | RAMQ (Canada, McGill University) | 1986–2002 | bariatric surgery vs. | 3 | 676 | 679 | 45.1 | roux-en-y isolated gastric bypass, vertical banded gastroplasty, roux-en-y gastric bypass, laparoscopic roux-en-y isolated gastric bypass |
| morbidly obese individuals with no history of bariatric surgery | 20 | 3658 | 3678 | 46.7 |