• Abdominal symptoms in general practice: Frequency, cancer suspicions raised, and actions taken by GPs in six European countries. Cohort study with prospective registration of cancer 

      Holtedahl, Knut A.; Borgquist, Lars; Donker, Gé A.; Buntinx, Frank; Weller, David; Braaten, Tonje; Hjertholm, Peter; Månsson, Jörgen; Strandberg, Eva Lena; Campbell, Christine; Ellegaard, Lisbeth; Parajuli, Ranjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-06)
      Background<br> Abdominal symptoms are diagnostically challenging to general practitioners (GPs): although common, they may indicate cancer. In a prospective cohort of patients, we examined abdominal symptom frequency, initial diagnostic suspicion, and actions of GPs in response to abdominal symptoms.<p> Methods<br> Over a 10-day period, 493 GPs in Norway, Denmark, Sweden, Belgium, the Netherlands, ...
    • International pooled study on diet and bladder cancer: The bladder cancer, epidemiology and nutritional determinants (BLEND) study: Design and baseline characteristics 

      Goossens, Maria E.; Isa, Fatima; Brinkman, Maree; Mak, David; Reulen, Raoul; Wesselius, Anke; Benhamou, Simone; Bosetti, Cristina; Bueno-de-Mesquita, H. Bas; Carta, Angela; Allam, Md Farouk; Golka, Klaus; Grant, Eric J.; Jiang, Xuejuan; Johnson, Kenneth C.; Karagas, Margaret R.; Kellen, Eliane; La Vecchia, Carlo; Lu, Chih-Ming; Marshall, James; Moysich, Kirsten; Pohlabeln, Hermann; Porru, Stefano; Steineck, Gunnar; Stern, Marianne C.; Tang, Li; Taylor, Jack A.; van den Brandt, Piet; Villeneuve, Paul J.; Wakai, Kenji; Weiderpass, Elisabete; White, Emily; Wolk, Alicja; Zhang, Zuo-Feng; Buntinx, Frank; Zeegers, Maurice P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-06)
      Background: In 2012, more than 400,000 urinary bladder cancer cases occurred worldwide, making it the 7th most common type of cancer. Although many previous studies focused on the relationship between diet and bladder cancer, the evidence related to specific food items or nutrients that could be involved in the development of bladder cancer remains inconclusive. Dietary components can either be, ...
    • Symptoms and signs of colorectal cancer, with differences between proximal and distal colon cancer: a prospective cohort study of diagnostic accuracy in primary care 

      Holtedahl, Knut; Borgquist, Lars; Donker, Gé A.; Buntinx, Frank; Weller, David; Campbell, Christine; Månsson, Jörgen; Hammersley, Victoria; Braaten, Tonje; Parajuli, Ranjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-08)
      <i>Background</i> - In an abdominal symptom study in primary care in six European countries, 511 cases of cancer were recorded prospectively among 61,802 patients 16 years and older in Norway, Denmark, Sweden, Netherlands, Belgium and Scotland. Colorectal cancer is one of the main types of cancer associated with abdominal symptoms; hence, an in-depth subgroup analysis of the 94 colorectal cancers ...
    • Symptoms and signs of urogenital cancer in primary care 

      Holtedahl, Knut Arne; Borgquist, Lars; Donker, Gé A.; Buntinx, Frank; Weller, David; Campbell, Christine; Månsson, Jörgen; Hammersley, Victoria; Braaten, Tonje Bjørndal; Parajuli, Ranjan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-26)
      Background - Urogenital cancers are common, accounting for approximately 20% of cancer incidence globally. Cancers belonging to the same organ system often present with similar symptoms, making initial management challenging. In this study, 511 cases of cancer were recorded after the date of consultation among 61,802 randomly selected patients presenting in primary care in six European countries: a ...