• Minjoung Monica Koo, Christian von Wagner, Gary A Abel, Sean McPhail, William Hamilton, Greg P Rubin, and Georgios Lyratzopoulos.
• University College London, 1-19 Torrington Place, London, UK.
• J Public Health (Oxf). 2018 Sep 1; 40 (3): e388-e395.

BackgroundRaising awareness of possible cancer symptoms is important for timely help-seeking; recent campaigns have focused on symptom groups (such as abdominal symptoms) rather than individual alarm symptoms associated with particular cancer sites. The evidence base supporting such initiatives is still emerging however; understanding the frequency and nature of presenting abdominal symptoms among cancer patients could inform the design and evaluation of public health awareness campaigns.MethodsWe examined eight presenting abdominal symptoms (abdominal pain, change in bowel habit, bloating/distension, dyspepsia, rectal bleeding, dysphagia, reflux and nausea/vomiting) among 15 956 patients subsequently diagnosed with cancer in England. We investigated the cancer site case-mix and variation in the patient interval (symptom-onset-to-presentation) by abdominal symptom.ResultsAlmost a quarter (23%) of cancer patients presented with abdominal symptoms before being diagnosed with one of 27 common and rarer cancers. The patient interval varied substantially by abdominal symptom: median (IQR) intervals ranged from 7 (0-28) days for abdominal pain to 30 (4-73) days for dysphagia. This variation persisted after adjusting for age, sex and ethnicity (P < 0.001).ConclusionsAbdominal symptoms are common at presentation among cancer patients, while time to presentation varies by symptom. The need for awareness campaigns may be greater for symptoms associated with longer intervals to help-seeking.

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