The COVID-19 pandemic, affected all aspects of life worldwide, and continues its effects as a global health crisis [1–3]. Studies since the beginning of the pandemic show that this viral infection is associated with more severe disease and a higher risk of mortality in the elderly, those with comorbid diseases, and immunosuppressive individuals [4, 5]. Caring for oncology patients has become more difficult because of serious complications (drug-drug interactions, thrombosis) and high risk of mortality, although the treatment of COVID-19 is not different from the others [6]. The need for mechanical ventilation due to COVID-19 infection or the length of stay in the intensive care unit is higher in this group due to the immunosuppressive effect of the disease itself or the treatments used [7].
Therefore, it is within expectations that oncology patients, who belong to a special risk group, experience a significant health threat during the COVID-19 pandemic, which has become a vital threat, and that their overall quality of life is at lower levels compared to the normal course of life. Indeed, the results of various scientific studies involving examples from different countries support this situation.
The intertwining of the diagnosis and treatment process of oncological diseases with the life-threatening COVID-19 pandemic also brings the general health status to the forefront. General health is of even greater importance in oncology patients than in individuals in the normal population. During the pandemic, the general health status deteriorated due to the disruption of routine check-ups, delays in treatment, and the health system's focus on COVID-19 patients. For instance, a study conducted in Italy revealed that cancer treatments were delayed by 20% during the pandemic, negatively affecting patients' general health status [8]. Similarly, a study conducted in the UK found that 40% of cancer patients faced difficulties accessing treatment during the pandemic [9].
In addition to general health, physical health has also been significantly impacted. A study conducted in Germany showed a marked decrease in the physical activity levels of cancer patients during the pandemic, negatively affecting their physical health [10].
Psychological health is also crucial in both the treatment process and the quality of life of oncology patients. Increased anxiety, stress, and feelings of isolation during the pandemic have had negative impacts on psychological health. A study conducted in the United States revealed that cancer patients struggled with increased levels of depression and anxiety during the pandemic [11]. Another study conducted in China indicated that 60% of patients felt the need for psychological support during the pandemic [12].
Social relationships, a social component of health, also play a significant role in the treatment process and quality of life of oncology patients. In other words, social relationships are an important factor supporting the quality of life of oncology patients. Social distancing measures and quarantine during the pandemic severely restricted patients' social relationships and increased feelings of loneliness. A study conducted in Brazil showed that 70% of cancer patients experienced a significant decrease in social relationships during the pandemic, negatively affecting their quality of life [13].
Furthermore, the environmental dimension, another component of quality of life, has become much more visible and important during the pandemic period. Environmental factors are another significant dimension affecting the quality of life of oncology patients. The obligation to stay at home during the pandemic restricted patients' interactions with environmental factors and reduced their quality of life. A study conducted in India indicated that patients' environmental conditions worsened during the pandemic, negatively affecting their overall quality of life [14].
However, in our study on the effects of COVID-19 on the quality of life of oncology patients, 75 of the oncology patients scored 50 points, 25 scored 62.5 points, 24 scored 75 points, 8 scored 87.5 points, and 5 scored 100 points on the general health subscale, one of the subscales of the quality of life scale during the COVID-19 pandemic. According to this distribution, the general health status of oncology patients was found to be at a moderate + level.
Physical Health: During the COVID-19 pandemic, 17 oncology patients scored 50 points, 15 scored 53.6 points, 9 scored 57.1 points, 11 scored 60.7 points, 11 scored 64.3 points, 10 scored 67.9 points, 9 scored 71.4 points, 10 scored 75 points, 7 scored 78.6 points, 10 scored 82.1 points, 2 scored 85.7 points, 1 scored 89.3 points, and 5 scored 92.9 points on the physical health subscale. According to this distribution, the physical health status of oncology patients was found to be at a moderate + level.
Psychological Health: During the COVID-19 pandemic, 24 oncology patients scored 50 points, 22 scored 54.2 points, 25 scored 58.3 points, 20 scored 62.5 points, 18 scored 66.7 points, 19 scored 70.8 points, 15 scored 75 points, 11 scored 79.2 points, 5 scored 83.3 points, 7 scored 87.5 points, 5 scored 91.7 points, 3 scored 95.8 points, and 1 scored 100 points on the psychological health subscale. According to this distribution, the psychological health status of oncology patients was found to be at a moderate < high level.
Social Relationships: During the COVID-19 pandemic, 39 oncology patients scored 50 points, 37 scored 58.3 points, 30 scored 66.7 points, 20 scored 75 points, 10 scored 83.3 points, 3 scored 91.7 points, and 3 scored 100 points on the social relationships subscale. According to this distribution, the quality of life of oncology patients in the social relationships subscale was found to be at a moderate + level.
Environment: During the COVID-19 pandemic, 23 oncology patients scored 51.4 points, 18 scored 54.1 points, 23 scored 56.8 points, 20 scored 59.5 points, 18 scored 62.2 points, 15 scored 64.9 points, 14 scored 67.6 points, 14 scored 70.3 points, 6 scored 73 points, 1 scored 75.7 points, 10 scored 78.4 points, 2 scored 81.1 points, 2 scored 83.8 points, and 1 scored 86.5 points on the environmental subscale. According to this distribution, the quality of life of oncology patients in the environmental subscale was found to be at a moderate + level.
The findings obtained from this research, conducted with a random sampling technique and a patient group of 220 individuals specific to Turkey, diverge from the literature information provided above with examples from different countries. In other words, while the quality of life of oncology patients in many parts of the world significantly decreased during the COVID-19 pandemic, the quality of life level of the 220-patient group in our study was found to be high in the psychological health dimension and moderate or above in the other subscales. This demonstrates the unique and noteworthy aspect of the research.
Another important issue in the treatment of cancer patients is that they cannot receive cancer treatments due to prolonged viral positivity after COVID-19 infection. As a result, delay in cancer treatment can lead to disease progression and serious life-threatening consequences [15, 16]. It is extremely important to manage the diagnosis, chemotherapy, or hospitalization needs of oncology patients correctly and effectively during the pandemic to not jeopardize their primary treatment and to prevent mortality due to emergencies [17–18].
During the pandemic, oncology patients have to go to the hospital more frequently due to their treatment or controls and are at higher risk in terms of healthcare-associated infections [19]. To prevent the transmission of the virus to oncology patients from patients with a diagnosis of COVID-19 confirmed by SARS-CoV-2 PCR positivity and healthcare providers who carry the virus asymptomatically, measures should be taken under the guideline recommendations in healthcare institutions [20].
The effects of pandemic conditions on oncology patients are not limited to the effects of COVID-19 infection on survival, there are serious psychological and social effects, either [21, 22]. With this study, in addition to the effects on the diagnosis, treatment, and follow-up processes, we also aimed to evaluate its psychological and social effects, patients' compliance with infection control measures, their satisfaction with the health care service they received from their institutions, and the effects of the pandemic process on the quality of life (QOL) of oncology patients through an original questionnaire and the World Health Organization (WHO) QOL Scale, which was validated in Turkish [23].