Prostate Cancer Knowledge, Beliefs, and Screening Uptake among Black Survivors: A Qualitative Exploration at a Tertiary Hospital, Limpopo Province, South Africa

Shai Elliot Nkoana; Tholene Sodi; Mahlapahlapana Themane

doi:10.20944/preprints202408.1019.v1

Submitted:

12 August 2024

Posted:

14 August 2024

You are already at the latest version

Abstract

Men of African ancestry suffer disproportionately from prostate cancer (PCa) than other racial groups in South Africa. Equally concerning is that black South African men generally present later with higher stage and grade of the disease than their non-black counterparts. Despite this, South African black men continue to have little uptake in PCa screening behaviors. The objective of the study was to explore knowledge and beliefs of PCa among black South African survivors. A sample of 20 prostate cancer survivors, with ages ranging from 67 to 85 years (meanage = 76yrs; SD = 5.3) were selected through purposive sampling and requested to participate in the study. Data were collected through in-depth, semi-structured individual interviews, and analysed using interpretative phenomenological analysis (IPA). The findings demonstrated that black South African men had poor knowledge of PCa and that this may create an unfortunate system that preclude this population group from taking part in life-saving PCa screening services. The results highlight a need to elevate knowledge and awareness of PCa among black South African men and ultimately enhance screening practices.

Keywords:

prostate cancer

;

knowledge

;

attitudes

;

beliefs

;

screening

;

South Africa

;

black men

Subject:

Public Health and Healthcare - Public Health and Health Services

Introduction

Prostate cancer (PCa) is a disease of increasing concern for the population of man, with a rising global incidence. The disease is rated the second most frequently diagnosed malignancy - after lung cancer - and is the sixth leading cause of death among men worldwide [2,3]. According to the Lancet Commission on PCa, the number of new disease cases annually will rise from 1.4 million in 2020 to 2.9 million by 2040, globally (10). It has been reported that in 2020, PCa was responsible for 375 304 deaths globally, translating to 6.8% of all deaths among men globally [15]. The true number of cases are likely to be higher than the recorded figures because of underdiagnosis and poor reporting, especially in low-income and middle-income countries (LMICs).

The incidence and mortality rate of PCa in Sub-Saharan Africa region is 40.5 per 100 000 and expected to rise exponentially [17]. In South Africa, black men were reported to have higher overall incidence and mortality as a result of PCa than any other racial groups [6,15,21]. Previous Studies [3,11,30] have demonstrated that black men in South Africa frequently have late PCa diagnosis and with advanced stage than other racial groups [3,17]. Some of the explanations for advanced stage at diagnosis among black South African men are attributed to socio-economic and healthcare access factors [3], illiteracy and a lack of knowledge about the disease [3,11,17], use of traditional and complementary medicine [19].

Earlier diagnosis is key to providing effective cancer control [11]. Screening of asymptomatic men for PCa in its early stages can be an effective measure to reduce the alarming rate of morbidity and mortality from the disease [23,30]. It is, however, important to make a distinction between screening and diagnostic testing. Screening refers to testing an asymptomatic (showing no or disguised symptoms) person with an increased risk of developing PCa [11] whereas diagnostic testing is intended for those showing symptoms in need of a diagnosis (5). Diagnostic testing is beyond the scope of this study.

PCa Screening may offer opportunities for earlier diagnosis of the disease while still localized [11,23]. Screening, however, is still a controversial subject. For instance, there remains concerns of testing too frequently, at a young age, at an advanced age, or when short life expectancy precludes any survival benefits from screening [3]. Overall, screening benefits far outweigh the disadvantages and may result in early detection of PCa, enabling more effective treatment and a better chance of recovery [3]. The most commonly used methods for screening men for PCa are prostate antigen serum (PSA) and digital rectal examination (DRE) [15]. According to (15), PSA and DRE screening of asymptomatic men reduces PCa morbidity and mortality from the disease. The American Urological Association guidelines recommend PCa screening in men <55 years of age, based on high risk (e.g., family history or African America race) [4]. In South Africa screening for PCa is done in an opportunistic manner rather than on an organized population-based systematic policy. The limitation of opportunistic screening is that not all potential men are covered [3].

The World Health Organization (WHO) emphasizes early detection and diagnosis of PCa as a priority [33]. Accordingly, timely detection and diagnosis of PCa remain a major arsenal against advanced stage presentation and mortality from the disease. Low screening rates (leading to underdiagnosis and undertreatment) cause unimaginable harm in LIMCs. Most research studies on PCa screening, including prevalence and benefits, have largely been done in majority White populations in North America and European regions [8]. There is lack of studies on PCa screening in black communities, largely in LIMCs, where there is disproportionate burden of the disease. Despite the importance of early detection in reducing morbidity and mortality rates from PCa, results from most studies indicate low participation of black men, particularly LIMC, in screening programs [3,16]. Globally, low socioeconomic status [13], lack of awareness and knowledge about PCa and screening [1,16], discrepancies and inequalities in access to health [1,14], and cultural beliefs, stigma, and fear [13] have been implicated as contributing factors to black men’s poor uptake of PCa screening.

The Health Belief Model (HBM), one of the most widely used models in behavioural medicine, posits that people will take action to prevent illness if they regard themselves as susceptible to a condition (perceived susceptibility) [7]. There are limited studies that focused on knowledge of and beliefs about PCa among black South African men and its potential role in explaining why this population group is less likely to attend screening. Exploring the knowledge and cultural worldview of black men in relation to PCa will assist in the determination of their perceived susceptibility. The cultural worldview of individuals is rooted in the values, beliefs and behaviours of their ethnic populations. This emerges from a mix of individual meaning-making (personal factors) and interaction with others around them (social factors) [13]. People’s culture (including belief system) may help explain the way people understand and develop attitudes about illnesses, particularly debilitating, life-threatening diseases. There is currently a paucity of qualitative research that explains PCa screening behaviours using a theoretic model. Understanding black men’s knowledge of PCa and why so many do not take part in screening behaviours is, therefore, a legitimate variable to investigate.

Methods

Study Design

A hermeneutic phenomenological design was used. Hermeneutic phenomenological design was deemed appropriate as the focus of the study was to unfold the meaning that the participants give to their experiences of living with PCa. The focus was on how the participants in the study perceive and talk about PCa in order to understand and appreciate their knowledge from their perspectives. The study was concerned with how things appear from the eyes of the participants. According to [24], people make meaning of their life experiences.

Sampling

The participants for the study were identified and recruited using purposive sampling technique. Through this technique, twenty (20) elderly black South African PCa survivors were selected for participation. All the participants were diagnosed with PCa (and receiving some form of treatment at a tertiary hospital in Limpopo Province, South Africa) for more than five years prior to commencement of the study. The sampling choice was made because of its compatibility with hermeneutic phenomenological design [12]. Therefore, both theoretical and practical considerations formed the basis for the sampling choice [24].

Data Collection

In-depth, semi-structured, individual interviews were conducted with each participant in the study. The data collection method was deemed appropriate to elicit rich, detailed, case-by-case, first-person account of each participant’s account of their experience of living with PCa. Furthermore, this choice was made because of its compatibility with hermeneutic phenomenological inquiry [28]. The method also gives enough space and flexibility for original and unexpected materials to emerge, which the researcher may inquire in more detail using probing questions [24]. The primary purpose was to capture how the participants narrate their knowledge and beliefs regarding the experiences of living with PCa.

An interview guide was used to elicit the participants’ individual narratives. This interview guide was first pre-tested for validity with two black PCa survivors who were in remission. For broader scientific community access, all the individual interviews were audio recorded (with permission from the participants. All the interviews were conducted in the participants’ mother tongue and thereafter transcribed into English for wider access. All the participants satisfied criteria for inclusion and exclusion.

Data Analysis

IPA was used to analyse the data collected in the study. This method was chosen because of its compatibility with hermeneutic phenomenological inquiry. Researchers applying IPA have two main aims: a) listen to the accounts expressed by each participant in order to obtain an insider’s perspective of the phenomenon under study and b) attempt to interpret these accounts in order to gain an understanding of what it means for each participant to have those accounts in that particular context [29]. Participants IPA explores how research participants make sense of their lived world (Smith 1996). For this reason, samples in IPA are relatively small to enable in-depth case-by-case analysis [24]. The IPA was conducted by the primary researcher who is experienced in the technique.

Ethical Considerations

The study obtained appropriate ethical approvals before commencement. The approvals were obtained from the University of University of Limpopo Turfloop Research Ethics Committee (TREC/26/2015) as well as the Limpopo Provincial Department of Health Gate Keeper permission (Ref:4/2/2). All the participants in the study signed informed consent (following a detailed description of the study) and no individual names were used (anonymity).

Trustworthiness of the Study

All the authors ensured that the criteria for credibility, transferability, dependability, and confirmability were maintained throughout the study. All researchers cross-checked and emersed themselves in a reflective engagement with the participants’ narratives and meaning-making processes.

Results

All the participants (n=20) were black South African men. Their ages ranged from 67 to 85 years (mean age =76; SD =5.3). All (n = 20) were PCa survivors diagnosed more than five years before the commencement of the study. The majority (n = 15) had primary education, and were on retirement (n = 13). The participants (n=20; mean =76.2; SD =5.3) were black men aged between 67 to 85 years. All (n =19) but one (n = 1) had not family history of cancer. All (n = 20) had no knowledge of PCa prior to their diagnosis, and all (n = 20) had no history of ever screening for PCa.

Two themes emerged from the IPA (see table 1) highlighting participants’ knowledge and beliefs about PCa. To elucidate these themes, participants’ narrative extracts are presented, followed by discussion of the overall findings.

Table 1. Quotes highlighting lack knowledge and beliefs (fatalism) about PCa among black men.

Theme	Participants	Representative quotes
Knowledge: The results showed that the participants had poor knowledge of PCa. In their majority, they highlighted this lack of knowledge through their quotes.	A D F K L	“It is now three years with this illness. I did not know this illness. No…nobody told me this illness”. “I don’t know this. This is totally new to me, I have never seen or heard about this illness. I did not know anybody who had this illness before”. “No. I have never heard about this illness before. I do not know it. I don’t know how it come and I have never gone to the hospital to check before”. “No, there is no one in my family who was having this illness. It is new. I did not know it. I have never heard about the illness before”. “I only started to hear when they say I have cancer. I do not even know what is prostate. The doctor just say so…but…but… I never know this. I did not go to school”.
Fatalism (beliefs): The results showed that the participants harboured fatalistic beliefs about cancer.	C Q J	I don’t about this disease. Then I go home and they tell me this illness…it ….it is dangerous. They say it kills”. “Someone say many people died….and they don’t know how to treat it”. I did not know anything about the disease. The doctor said he has seen many old men like me with this disease but it was for the first time for me to hear about it. I once went to a funeral and the people there were saying the woman died of cancer that was on her breast. This is the only thing I know. They said at the funeral of the dead woman that cancer can kill you fast”.

Discussion

The aim of this study was to explore knowledge and beliefs of PCa among black South African survivors. The exploration was based on the HBM explanatory framework or model. The HBM provided a framework for the examination of how knowledge and behavioural beliefs can impact PCa screening practices (uptake) among South African black survivors. HBM play a significant role in predicting, explaining and modifying health behaviours, including screening practices [22]. The model posits that black South African men will take action (screening) if they regard themselves as susceptible PCa.

The HBM model suggests that likelihood of a person engaging in a certain behaviour (PCa screening) is based on their perceived susceptibility to the disease, including its severity [27]. Perceived susceptibility relates to one’s belief that they are at risk for having a certain health outcome, namely, developing PCa. Perceived severity relates to a person’s belief in how severe a health condition (PCa) would be if they got it [27]. It has been noted that fundamental elements related to ethnicity and culture shape health perceptions, attitudes, and behaviours [1,18,22]. Some of the participants in the study followed the traditional African belief system which holds that certain diseases can be transmitted through unforeseen supernatural forces (e.g., witchcraft, bad luck, wrath of angry ancestors, etc.) [9,32]. Cultural influences on PCa knowledge and beliefs are multi-level and center on personal, social and wider structural factors [13].

All the participants in the study had never heard of PCa prior to their diagnosis. Meaning-making relies on language and certain medical terms such as cancer (including PCa) are heavily implicated with fatalistic beliefs and negative outcomes. According to [13], where no local translations or everyday equivalents exist, discussion of cancer (particularly prostate cancer) becomes difficult as people have no words of their own comfort to use. As has been demonstrated through the participants’ narratives, descriptors reference PCa by its effects (fatalism). Language, therefore, plays a crucial role in creating PCa beliefs in the participants. This led to PCa being made to be both invisible and mysterious. This is in line with what has been established in other studies [13,18,22]. Previous studies [1,16,34] have identified limited knowledge, including misconceptions, myth, and stigma surrounding PCa as potential barriers to the low uptake of screening practices among black men. This may be compounded by other variables such as lack of knowledge about the existence of available PCa screening methods, such as PSA and/or DRE [20,25]. Additionally, it may be possible that most at risk black men, particularly from rural communities, may not even know when and where to go for screening [14].

Beliefs also have proved to play an important role in influencing the uptake of PCa screening. There was a general belief among the participants in the study that cancer is an incurable (cancer fatalism). This is in line with what has been established in other studies [13,22]. Achieving sufficient uptake and participation in PCa screening practices among black South African men will require in-depth understanding of the culture-informed prostate cancer beliefs and attitudes among this target group. Personal and societal (ethnic and cultural) factors interplay to produce meaning-making attributes that are crucial determinants of people’s health behaviour, including health practices.

Conclusion

As demonstrated through the HBM explanatory framework, if black South African men have poor knowledge of PCa and/or don’t believe they are at risk for developing the disease, they are less likely to engage in screening practices. Our study suggests that while HBM model is important in predicting prostate cancer screening intent, normative beliefs (represented by culture) dictate a person’s acceptance of a health behaviour. Black South African men’s reasons for what they belief about PCa, including poor knowledge and lack screening uptake, emanate from a mix of personal, social as well as structural factors. Understanding how these come together to create meaning for PCa is important in enhancing screening practices in this target population. Culturally relevant interventions are needed to address the barriers to PCa screening uptake among black South African men.

Limitations of the Study

The authors would like to acknowledge that there are some limitations to this study. First, the sample for the study was relatively small. Second, participants were elderly diagnosed PCa survivors and the results may not be generalizable to other population groups among black South African men. However, the results in this study may further contribute to the body of literature on knowledge, cultural factors and screening intentions, which is currently lacking among black South African men.

Author Contributions

SE, the principal investigator of this study, contributed to the overall project design, management, and manuscript writing. TS gave insights on the qualitative analysis and manuscript writing. MT contributed to qualitative analysis and manuscript draft writing.

Funding

This research was supported by the National Institute for the Humanities and Social Sciences (NIHSS).

Declaration of conflicting Interests

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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