$3.5 Million in Funding to Analyze Cancer Patients' Social Relationships

How Much Do Social Networks Influence Cancer Treatment?

A cancer diagnosis affects people's lives not only physically, but also psychologically and socially. During this time, patients shape their decisions based not just on medical advice, but also on conversations with those around them. Social networks may have an even greater influence on treatment among older people. A person's social circle can shape the cancer journey as a source of support or as a barrier filled with misinformation. Against this background, $3.5 million in funding from the US National Cancer Institute (NCI) is enabling an important study designed to explore these dynamics in depth.

The Foundations of the Study: Social Networks and Decision-Making

Social networks exert a powerful influence on people's lives. They consist of people with shared interests and values and connect individuals to one another. When faced with a serious disease such as cancer, these relationships play a decisive role in patients' treatment decisions.

• The importance of social networks for older patients: Approximately 60% of cancer patients are older people. They often face more serious forms of disease and have complex social relationships.
• Physicians' observations: Dr. Supriya G. Mohile, one of the study's co-leaders, explains: "Patients usually do not simply do what their doctor says. They first consult people such as their spouses, siblings, or neighbors . Whether accurate or not, that information becomes part of the decision-making process."

Research Methods and Initial Findings

The study will examine 300 patients aged 65 and older who have been diagnosed with advanced cancer. It aims to understand how social networks influence these patients' treatment and to evaluate how the networks change throughout the cancer journey.

1. Mapping Social Networks

Patients will be asked to identify the important people in their lives who influence their decisions. This information will be used to create a graphical map of each patient's social network.

• Previous findings: A pilot study showed that patients' social network maps differed, but certain meaningful patterns emerged. For example, some patients believe their cancer is curable, and that belief influences their treatment decisions even when it is not consistent with the medical facts.
• The role of family pressure: 40% of patients said they continued additional treatments because of their families' insistence or guidance rather than their own wishes. Dr. Mohile says, "This is something I hear frequently in the clinic," emphasizing families' influence on decisions. That influence can sometimes mean patients place their own medical wishes and needs second. It can have both positive and negative consequences:
  • Positive Effect: Family support can improve treatment adherence and provide motivation.
  • Negative Effect: Patients may feel pressured into treatments they do not want or that are medically unnecessary.

This shows that the strength of social networks and families' influence on decision-making cannot be overlooked during treatment.

2. Changes in Social Dynamics

The researchers will analyze how social circles change after a cancer diagnosis. Older people may adopt a selective communication style when, for example, their condition deteriorates.

• Example: Instead of immediately telling their children that the disease has progressed, patients may share the news with people to whom they feel less emotionally attached, such as their hairdresser or friends.

3. Tracking Medical Records

In addition to social networks, the researchers will follow patients' medical decisions and their outcomes. Although social networks can spread misinformation, they are generally described as providing support and positive influences.

Conclusions and Future Perspectives

Although social networks have been studied in other medical fields, such as mental health and stroke care, research among cancer patients is limited. The new project aims to address this gap and understand the unique social dynamics of older cancer patients in particular.

• The goal of improving communication: Previous studies examined physician-patient communication about cancer and found that the analyses could be used in training healthcare professionals. Building on this foundation, the new study will explore the effects of social networks in greater depth.

This research provides a strong foundation for understanding the role of social networks in cancer treatment among older people. It has the potential to develop better communication strategies for both healthcare professionals and patients.