Though categorised as suggestive evidence, the other strongest associations observed in this group were for interleukin-23 receptor concentrations and pancreatic cancer risk (OR 1.42, 95% CI 1.20–1.69; q-value = 0.055), prothrombin concentrations and basal cell carcinoma risk (OR 0.66, 95% CI 0.53–0.81; q-value = 0.067), serum amyloid P component concentrations and low grade serous ovarian cancer risk (OR 1.86, 95% CI 1.34–2.59; q-value = 0.084), and interleukin-1 receptor-like 1 concentrations and triple-negative breast cancer risk (OR 0.92, 95% CI 0.88–0.97, q-value = 0.15). This evidence concerns the gene IL1RL1 and triple-negative breast carcinoma.