Inflammation has been implicated in ovarian carcinogenesis. However, studies investigating the association between pelvic inflammatory disease (PID) and ovarian cancer risk are few and inconsistent. We investigated the association between PID and the risk of epithelial ovarian cancer according to tumor behavior and histotype. We pooled data from 13 case-control studies, conducted between 1989 and 2009, from the Ovarian Cancer Association Consortium (OCAC), including 9,162 women with ovarian cancers, 2,354 women with borderline tumors, and 14,736 control participants. Study-specific odds ratios were estimated and subsequently combined into a pooled odds ratio using a random-effects model. A history of PID was associated with an increased risk of borderline tumors (pooled odds ratio (pOR) = 1.32, 95% confidence interval (CI): 1.10, 1.58). Women with at least 2 episodes of PID had a 2-fold increased risk of borderline tumors (pOR = 2.14, 95% CI: 1.08, 4.24). No association was observed between PID and ovarian cancer risk overall (pOR = 0.99, 95% CI: 0.83, 1.19); however, a statistically nonsignificantly increased risk of low-grade serous tumors (pOR = 1.48, 95% CI: 0.92, 2.38) was noted. In conclusion, PID was associated with an increased risk of borderline ovarian tumors, particularly among women who had had multiple episodes of PID. Although our results indicated a histotype-specific association with PID, the association of PID with ovarian cancer risk is still somewhat uncertain and requires further investigation.

Our results suggest that a history of PID is associated with an increased risk of ovarian borderline tumors, which may support the hypothesis that inflammation is an etiological factor. The lack of an association between previous PID and invasive ovarian cancer may indicate an etiological difference between ovarian borderline tumors and invasive ovarian cancer. However, an important limitation of the study is the use of self-reported PID.

Objective: The aim of the present study was to evaluate the effect of the glucagon-like peptide-1 analog liraglutide on weight loss in overweight and obese women with polycystic ovary syndrome (PCOS).Methods: In an observational study, 84 overweight or obese women with PCOS were treated with liraglutide. Baseline characteristics and weight changes at clinical follow-up were recorded. Main outcome measures were absolute and relative weight loss.Results: In overweight or obese women with PCOS treated with liraglutide for a minimum of 4 weeks, a mean weight loss of 9.0 kg (95% CI: 7.8–10.1, p < 0.0001) and a mean decrease in BMI of 3.2 kg/m2 (95% CI: 2.8–3.6, p < 0.0001) were found. A weight loss of more than 5 and 10% of baseline weight was seen in 81.7 and 32.9% of patients, respectively. The mean duration of treatment with liraglutide was 27.8 weeks (SD 19.2).Conclusion: Treatment with liraglutide in combination with metformin and lifestyle intervention resulted in a significant weight loss in overweight and obese women with PCOS, indicating that liraglutide may be an effective alternative for weight loss in this group of patients. However, larger placebo-controlled studies are needed to confirm this.

Our results indicate that PID is not a strong risk factor for ovarian cancer. Whether PID is slightly associated with risk of serous ovarian cancer has to be confirmed in other studies. Cancer Epidemiol Biomarkers Prev; 26(1); 104-9. ©2016 AACR.

Occurrence of cancer in the contralateral breast seems to be rather independent of time passed since the first primary. The finding of a decreasing incidence of CBC after 1997 is likely to be due to more women receiving systemic adjuvant therapy such as tamoxifen and longer duration of this treatment as well as the introduction of aromatase inhibitors.

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<div>Abstract<p><b>Background:</b> Pelvic inflammatory disease (PID) has been proposed as a risk factor for ovarian cancer. However, the existing literature on the association between PID and ovarian cancer risk is inconclusive, and only few cohort studies have been conducted.</p><p><b>Methods:</b> Using nationwide Danish registries, we conducted a population-based cohort study including all women from the birth cohorts 1940 to 1970 in Denmark during 1978–2012 (<i>n</i> = 1,318,929) to investigate the association between PID and subsequent risk of epithelial ovarian cancer. Among women in the cohort, 81,281 women were diagnosed with PID and 5,356 women developed ovarian cancer during follow-up through 2012. Cox regression models were used to estimate HRs and 95% confidence intervals (CI) for the association between PID and ovarian cancer, both overall and according to histotype.</p><p><b>Results:</b> For ovarian cancer overall, we observed no association with PID (HR, 1.05; 95% CI, 0.92–1.20). However, in histotype-specific analyses, we found a statistically significantly increased risk of serous ovarian cancer among women with PID (HR, 1.19; 1.00–1.41; <i>P</i> = 0.047). Conversely, PID was not convincingly associated with risk of any of the other histotypes of ovarian cancer.</p><p><b>Conclusions:</b> PID was associated with a modestly increased risk of serous ovarian cancer, but not other histotypes.</p><p><b>Impact:</b> Our results indicate that PID is not a strong risk factor for ovarian cancer. Whether PID is slightly associated with risk of serous ovarian cancer has to be confirmed in other studies. <i>Cancer Epidemiol Biomarkers Prev; 26(1); 104–9. ©2016 AACR</i>.</p></div>

<p>Supplementary Table 1. Codes used to identify women with ovarian cancer, PID, potential confounders and censoring</p>