Background Lifestyle factors, including diet and physical activity, are associated with prostate cancer progression and mortality. However, it is unclear how men would like lifestyle information to be delivered following primary treatment. This study aimed to identify men's preferences for receiving lifestyle information. Methods We conducted a cross-sectional pilot best-worst discrete choice experiment which was nested within a feasibility randomised controlled trial. Our aim was to explore men's preferences of receiving diet and physical activity advice following surgery for localised prostate cancer. Thirty-eight men with a mean age of 65 years completed best-worst scenarios based on four attributes: (1) how information is provided; (2) where information is provided; (3) who provides information; and (4) the indirect cost of receiving information. Data was analysed using conditional logistic regression. Men's willingness to pay (WTP) for aspects of the service was calculated using an out-of-pocket cost attribute. Results The combined best-worst analysis suggested that men preferred information through one-to-one discussion β = 1.07, CI = 0.88 to 1.26) and not by email (β = - 1.02, CI = - 1.23 to - 0.80). They preferred information provided by specialist nurses followed by dietitians (β = 0.76, CI = 0.63 to 0.90 and - 0.16, CI = - 0.27 to - 0.05 respectively) then general nurses (β = - 0.60, CI = - 0.73 to - 0.48). Three groups were identified based on their preferences. The largest group preferred information through individual face-to-face or group discussions (β = 1.35, CI = 1.05 to 1.63 and 0.70, CI = 0.38 to 1.03 respectively). The second group wanted information via one-to-one discussions or telephone calls (β = 1.89, CI = 1.41 to 2.37 and 1.03, CI = 0.58 to 1.48 respectively), and did not want information at community centres (β = - 0.50, CI = - 0.88 to - 0.13). The final group preferred individual face-to-face discussions (β = 0.45, CI = 0.03 to 0.88) but had a lower WTP value (£17). Conclusions Men mostly valued personalised methods of receiving diet and physical activity information over impersonal methods. The out-of-pocket value of receiving lifestyle information was important to some men. These findings could help inform future interventions using tailored dietary and physical activity advice given to men by clinicians following treatment for prostate cancer, such as mode of delivery, context, and person delivering the intervention. Future studies should consider using discrete choice experiments to examine information delivery to cancer survivor populations.

中文翻译：

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前列腺癌幸存者对提供饮食和生活方式建议的偏好：一项试点最差离散选择实验。

背景生活方式因素，包括饮食和身体活动，与前列腺癌的进展和死亡率有关。然而，尚不清楚男性希望如何在初级治疗后提供生活方式信息。本研究旨在确定男性对接收生活方式信息的偏好。方法 我们进行了一项横断面试点最佳最差离散选择实验，该实验嵌套在一项可行性随机对照试验中。我们的目的是探索男性在局部前列腺癌手术后接受饮食和身体活动建议的偏好。平均年龄为 65 岁的 38 名男性完成了基于四个属性的最坏情景：（1）如何提供信息；(2) 提供信息的地方；(3) 谁提供信息；(4) 接收信息的间接成本。使用条件逻辑回归分析数据。男性对服务方面的支付意愿（WTP）是使用自付费用属性计算的。结果 综合最佳-最差分析表明，男性更喜欢通过一对一讨论获得信息 β = 1.07，CI = 0.88 至 1.26）而不是电子邮件（β = - 1.02，CI = - 1.23 至 - 0.80）。他们更喜欢专科护士提供的信息，其次是营养师（β = 0.76，CI = 0.63 至 0.90 和 - 0.16，CI = - 0.27 至 - 0.05），然后是普通护士（β = - 0.60，CI = - 0.73 至 - 0.48） . 根据他们的喜好确定了三组。最大的群体偏好通过个人面对面或小组讨论获得的信息（β = 1.35，CI = 1.05 至 1.63 和 0.70，CI = 0.38 至 1.03）。第二组希望通过一对一讨论或电话获得信息（β = 1.89，CI = 1.41 至 2.37 和 1.03，CI = 0.58 至 1.48），并且不希望在社区中心获得信息（β = - 0.50， CI = - 0.88 至 - 0.13)。最后一组更喜欢单独的面对面讨论（β = 0.45，CI = 0.03 至 0.88），但 WTP 值较低（17 英镑）。结论 与非个人的方法相比，男性更重视接收饮食和身体活动信息的个性化方法。接收生活方式信息的自付费用对一些男性来说很重要。这些发现可能有助于为未来的干预提供信息，使用临床医生在前列腺癌治疗后向男性提供的量身定制的饮食和身体活动建议，例如分娩方式、背景和实施干预的人。