2:2 | Patient population
We identified all pregnant women who underwent appendectomy at South Stockholm General Hospital between December 2015 and February 2021. As a reference group to be able to compare pregnancy outcome, we identified women giving birth without appendectomy giving birth during the same time-period. Appendicitis rates were determined based on all pregnant and non-pregnant women with appendectomy in the Stockholm region. For comparisons of times and complication rates, we also identified a control group of non-pregnant fertile women, aged 18 – 45 years undergoing appendectomy.