Department of Behavioural Science and Health, University College London, London, UK.
Department of Psychology, University of Surrey, Surrey, UK.
Cancer Med. 2024 Feb;13(4):e7073. doi: 10.1002/cam4.7073.
Many people living with and beyond cancer (LWBC) do not meet dietary recommendations. To implement a healthier diet, people LWBC must perceive a need to improve their diet.
Participants included people diagnosed with breast, prostate or colorectal cancer in the UK. Two binary logistic regression models were conducted with perceived need for dietary change as the outcome (need to improve vs. no need). Predictor variables included demographic and clinical characteristics, receipt of dietary advice, and either body mass index (BMI) or adherence to seven relevant World Cancer Research Fund (WCRF) dietary recommendations.
The sample included 5835 responses. Only 31% perceived a need to improve their diet. Being younger (odds ratio [OR] 0.95, 95% confidence interval [CI] = 94-0.95), female (OR = 1.33, 95% CI = 1.15-1.53), not of white ethnicity (OR = 1.8, 95% CI = 1.48-2.27), not married/cohabiting (OR = 1.32, 95% CI = 1.16-1.52) and having received dietary advice (OR = 1.36, 95% CI = 1.43-1.86) was associated with an increased odds of perceiving a need to improve diet. This association was also seen for participants with two or more comorbidities (OR = 1.31, 95% CI = 1.09-1.57), those not meeting the recommendations for fruit and vegetables (OR = 0.47, 95% CI = 0.41-0.55), fat (OR = 0.67, 95% CI = 0.58-0.77), and sugar (OR = 0.86, 95% CI = 0.75-0.98) in the dietary components model and those who had a higher BMI (OR = 1.53, 95% CI = 1.32-1.77) in the BMI model.
Most of this sample of people LWBC did not perceive a need to improve their diet. More research is needed to understand the reasons for this and to target these reasons in dietary interventions.
许多癌症患者和康复者（LWBC）的饮食不符合建议。为了改善饮食，LWBC 人群必须认识到需要改善饮食。
参与者包括在英国被诊断患有乳腺癌、前列腺癌或结直肠癌的人群。采用二元逻辑回归模型，以饮食改变的感知需求为因变量（需要改善与不需要）。预测变量包括人口统计学和临床特征、饮食建议的接受情况，以及体重指数（BMI）或对世界癌症研究基金会（WCRF）的七项相关饮食建议的依从性。
样本包括 5835 个回复。只有 31%的人认为需要改善饮食。较年轻（比值比 [OR]0.95，95%置信区间 [CI]94-0.95）、女性（OR=1.33，95%CI=1.15-1.53）、非白种人（OR=1.8，95%CI=1.48-2.27）、未婚/同居（OR=1.32，95%CI=1.16-1.52）和接受饮食建议（OR=1.36，95%CI=1.43-1.86）与增加改善饮食的可能性相关。对于有两种或两种以上合并症的参与者（OR=1.31，95%CI=1.09-1.57）、不符合水果和蔬菜（OR=0.47，95%CI=0.41-0.55）、脂肪（OR=0.67，95%CI=0.58-0.77）和糖（OR=0.86，95%CI=0.75-0.98）推荐量的参与者，以及 BMI 较高的参与者（OR=1.53，95%CI=1.32-1.77），这种相关性也存在于饮食成分模型中。
该 LWBC 人群样本中，大多数人不认为需要改善饮食。需要进一步研究以了解原因，并在饮食干预中针对这些原因。
