Jehonathan H. Pinthus, Andrew Mente, Rajibul Mian, Mahshid Dehghan, Russell J. de Souza, Vincent Fradet, Nevena Savija, Bobby Shayegan, Sumathy Rangarajan, Sarah Karampatos, and Darryl P. Leong
Background There are few concise tools to evaluate dietary habits in men with prostate cancer in Canada. Objective The aim was to develop a short food-frequency questionnaire (SFFQ) in a cohort of prostate cancer patients. Methods A total of 130 men with prostate cancer completed the SFFQ and a validated comprehensive food-frequency questionnaire (CFFQ). Both questionnaires were administered at baseline and 6 mo later. Results We found good correlation between the SFFQ and the CFFQ for seafood, dairy, egg, fruits, potatoes, grains, soft drinks, and processed meat (Spearman rank correlation >0.5). Moderate correlation was found for meat, sweets, vegetables, protein, and carbohydrates (Spearman rank correlation: 0.3–0.5). We found a weaker correlation for total fat measured by SFFQ and CFFQ (Spearman rank correlation