Abstract
The cost of one suicide is estimated to be £1.67 million (2 million euros) to the UK economy. Most people who die by suicide have seen a primary care practitioner (PCP) in the year prior to death. PCPs could aim to intervene before suicidal behaviours arise by addressing suicide-risk factors noted in primary care consultations, thereby preventing suicide and promoting health and wellbeing. This study aimed to conduct a rapid, systematic scoping review to explore how PCPs can effectively recognise and respond to suicide-risk factors. MedLine, CINAHL, PsycINFO, Web of Science and Cochrane Library databases were searched for three key concepts: suicide prevention, mental health and primary care. Two reviewers screened titles, abstracts and full papers independently against the eligibility criteria. Data synthesis was achieved by extracting and analysing study characteristics and findings. Forty-two studies met the eligibility criteria and were cited in this scoping review. Studies were published between 1990 and 2020 and were of good methodological quality. Six themes regarding suicide risk assessment in primary care were identified: Primary care consultations prior to suicide; Reasons for non-disclosure of suicidal behaviour; Screening for suicide risk; Training for primary care staff; Use of language by primary care staff; and, Difference in referral pathways from general practitioners or primary care practitioners. This review focused on better recognition and response to specific suicide-risk factors more widely such as poor mental health, substance misuse and long-term physical health conditions. Primary care is well placed to address the range of suicide-risk factors including biological, physical-health, psychological and socio-economic factors and therefore these findings could inform the development of person-centred approaches to be used in primary care.
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Introduction
Suicide is a major public health problem, both internationally and in the UK (World Health Organisation [WHO], 2023). Approximately 700,000 individuals die by suicide each year (WHO, 2023). “The majority of suicides have been preceded by warning signs…it is important to understand what these warning signs are and to look out for them” (WHO, 2014). The cost of one suicide is estimated to be £1.67 million (2 million euros) to the UK economy (Knapp et al., 2011). This includes indirect costs associated with the impact on those affected or bereaved by suicide.
Suicide prevention is recognised as a multisector public health obligation., and there is the importance of recognising where high-risk groups such as middle-aged males aged 45–49 years can be seen (John et al., 2020; HM Government, 2021). Suicide prevention should be addressed using collaborative methods with a shared objective in resolving a specific issue that can involve many ministries, government agencies, non governmental organisations, pertinent stakeholders, and other groups (WHO, 2023). The updated suicide prevention strategy for England (DH, 2023) highlights the important role of primary care for suicide prevention and three priority population groups for interventions: mental health patients, those who self-harm, and middle-aged men. These priority populations could potentially access support at different entry points within health, social care and community sectors e.g. mental health patients via mental health trusts; those who self-harm via ambulance services, emergency departments and educational settings; middle-aged men via workplace and community-based projects. All three groups could access their primary care practitioner (PCP) or practice nurse (PN) either through annual check-ups or ad-hoc appointments.
Public health is defined as the “art and science of preventing disease, prolonging life and promoting health through the organised efforts of society” (Acheson, 1988). Whilst traditionally, a Primary Care Practitioner’s (PCP; also known as general practitioners (GP) in the UK context) role was just to treat those who are sick, the National Health Service [NHS] now has a new focus on prevention. It is recognised that the NHS is unsustainable unless it has more of a prevention focus.
Suicide prevention in primary care is seen as a preventative opportunity (Michail et al., 2020; Mughal et al., 2021a) and this has become more important during the COVID-19 pandemic, which has been said to exacerbate mental health conditions (Mughal et al., 2021b). Since over 90% of people who die by suicide have seen a PCP the year prior (Haste et al., 1998; Luoma et al., 2002; Pearson et al., 2009; Rodi et al., 2010; John et al., 2020), PCPs could play a pivotal role in intervening before suicidal behaviours arise by addressing suicide-risk factors noted in primary care consultations, thereby preventing suicide and promoting health and wellbeing.
Common suicide risk factors include distal and proximal risk factors. Distal risk factors are background events and issues including a mental health diagnosis, previous suicide attempts and a family history of suicide or suicide attempts (Richardson et al., 2023). Proximal risk factors are more imminent warning signs including feelings of hopelessness, suicidal ideation, access to means, a major loss or stressful event and imprisonment (Sarkhel et al., 2023). Recognising imminent warning signs are important for primary care services as they are better positioned to treat proximal factors. Lower socioeconomic position is associated with an increased risk of suicidal behaviour (Knipe et al., 2017) and socio-economic factors such as deprivation, educational disadvantage, poor housing, and low income are prevalent across both distal and proximal risk factors. Usually, people who die by suicide have a combination of several distal and proximal suicide-risk factors.
The likelihood of dying by suicide varies across a range of populations based on sex, age, sexuality, socio-economic status and occupation (Knipe et al., 2017). For example, in most countries suicide rates are highest among men but in some Asian countries there is a variation or rates across sex (Jordans et al., 2014). Many of these factors are also linked to poor physical health (e.g. chronic conditions) and poor mental health. There is a common misconception that suicide is only an issue for those experiencing poor mental health. However, only 28% of general population suicides were in contact with mental health services in the year prior to death (Appleby et al., 2018); and not everyone who dies by suicide has experienced poor mental health. Addressing health inequalities and premature deaths are key policy drivers and preventing suicides in populations with an increased likelihood of dying by suicide is vital.
Primary care is a key setting in any suicide prevention programme as 31% of those who died by suicide saw their GP in the preceding month before their death (John et al., 2020) and as previously mentioned those in touch with mental health services in the year prior to death were even more likely to have seen a GP (90%; Pearson et al., 2009). The WHO (2014; 2023) describes three levels of suicide prevention programmes and suggests possible interventions,
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1.
“Universal” programmes aimed at reaching the whole population
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2.
“Selective” programmes that target populations at increased risk i.e. those who have experienced one or several suicide-risk factors
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3.
“Indicated” programmes that target specific populations at increased risk e.g. those who self-harm, middle-aged men and mental health patients
Interventions highlighted by the WHO (2014; 2023) that are relevant for PCPs include improved access to health care, promotion of good mental health, addressing substance misuse, limiting access to the means of suicide, “gatekeeper” training; and better recognition and response to specific suicide-risk factors such as poor mental health, substance misuse and long-term physical health conditions (WHO, 2014; 2023). Previous reviews have been conducted that focus on suicide prevention for high-risk groups, assessment of suicide prevention in primary care and evidenced-based suicide prevention interventions (O'Connor et al. 2013; Milner et al., 2017; Dueweke et al., 2018; Mann et al., 2021; Spottswood et al., 2022), however they have not focused on better recognition and response to specific suicide-risk factors more widely such as poor mental health, substance misuse and long-term physical health conditions. The aim of this scoping review is to understand how PCPs can effectively recognise and respond to suicide-risk factors in a way that keeps patients attending in primary care safe and reduces the outcome of suicide.
Methods
Design
A scoping review design (Arksey & O’Malley, 2005; Levec et al., 2010) was used to identify and explore literature examining suicide prevention and recognition of risk factors in primary care. Although a systematic review was considered, due to the emergent nature of the research topic and diverse study designs in the area, a scoping review was thought to be optimal at this stage to explore a broad range of studies.
Two authors (AH, PB) independently reviewed titles, abstracts and full texts against the eligibility criteria. Discrepancies regarding the inclusion or exclusion of studies was resolved though discussion with a third reviewer (PS). There was high agreement between the two authors (AH, PB; 85%) on which studies were to be included or excluded for this scoping review.
Data was extracted from studies into a custom-made table capturing author, year, title and key themes (Table 2).
The research question was ‘How can primary care practitioners effectively recognise and respond to suicide-risk factors?’.
Search Strategy
Five electronic databases (MedLine, CINAHL, PsycINFO, Web of Science and Cochrane Library databases) were searched through the dates 1990 to 2020. A combination of search terms were identified to produce the most relevant results. Identification of relevant studies were conducted independently by two researchers (see Table 1).
Whilst there is overlap between the bibliographic databases Medline and Embase, both were searched to ensure the research evidence and theories of suicide included European as well as United States of America (USA) research. Medline tends to have a greater focus on USA publications whilst Embase is more euro-centric (which in this case may be more relevant as the USA does not offer free health care to all). Eligible full texts were subjected to data extraction by the two of the suthors (XX, XX). Data were extracted on the study aims, design, location, sample size and demographic information. Studies considered were limited to those written in English. Studies were excluded if they were a review, a report based on secondary data, were on assisted suicide and when they did not have a focus on primary care and suicide.
Date limits were placed on the terms “suicide”, “suicide prevention”, “suicide risk” “mental health” and “primary care”. Only those studies where the search terms were either in the abstract or the title were considered. The search terms “suicide” OR “suicide prevention” OR “suicide risk” AND “mental health” OR “primary care” in the abstract retrieved over 642 studies across databases, so only those with these search terms in the title were considered. Those dated from 1990 and from all countries were considered, however most published work was from Australia, Europe, New Zealand or USA. This ensured that all studies were included and external validity was improved. Any studies that referred to assisted suicide were excluded, as this involved joint decision making between patient and doctor; and therefore, was not relevant to the research question. All studies found in the scoping review were included in data synthesis, regardless of risk of bias/quality assessment.
Compliance with Ethical Standards
As this was a scoping review of published data, no ethical approvals were required.
Results
Through both database and manual searches, a total of 142 studies were detected. The titles and abstracts of those studies were screened for significance, resulting in 73 studies being reviewed at full-text level. A further 31 full text papers were excluded due to not focusing on the research question for this scoping review and 42 studies were deemed to meet the inclusion criteria. The process of assessing these studies is displayed in Fig. 1.
An overview of the 42 studies is presented in Tables 2, 3 and 4. The largest proportion of studies primarily used a retrospective analysis of data (n = 14) including reviews of patient case notes and coroner reports. Studies fell into three broad categories (quantitative n = 30, qualitative n = 9, mixed methods n = 3). A typical cross-sectional survey asked about how to identify barriers to effective suicide risk assessment, and a typical experimental study looked at the effectiveness of attitudes to screening for suicidal ideation.
Common limitations of the studies included a lack of active control group due to the use of retrospective data and imprecise outcome measures. However this is only a limitation in certain circumstances as it depended on the purpose of the study.
Studies originated from a range of geographical locations including Australia (n = 1), Denmark (n = 1), France (n = 2), Mexico (n = 1), Netherlands (N = 1), Slovenia (n = 2), Spain (n = 1), UK (n = 17), USA (n = 13), and multiple-Europe locations (n = 1). The studies covered a wide range of populations including adult primary care populations (n = 12), GPs and PCP (n = 12), people who had died by suicide (n = 8), a mixture of populations (n = 5), including young people aged 13–24 years (n = 2), older adults aged 60 + years (n = 2) and parents bereaved by suicide (n = 1).
Key themes
Theme 1: Attendance in Primary Care Prior to Suicide
Several studies focussed on patient attendance in primary care prior to death by suicide or suicide attempt. Retrospective data suggested that many patients consulted with their PCP prior to death by suicide or a suicide attempt (Luoma et al., 2002; Pearson et al., 2009; Mesec et al., 2010; Schou et al., 2019). It was observed that females attended for consultations with a physician more frequently, although more males (80%) died by suicide (Haste et al., 1998; Stanistreet et al., 2004). One study found that, when compared with a control group, patients who died by suicide had more interactions with primary care across a ten-year period, but not in the month prior to their death (Power et al., 1997). Young adults (18–39 years) were also less likely to consult with primary care prior to a suicide attempt when compared with older adults (40+ years) (Younes et al., 2013).
Theme 2: Reasons for Non-disclosure of Suicidal Behaviour
Four (10%) studies reported barriers and reasons for non-disclosure of suicidal behaviours. The fear of immediate hospitalisation and the impact on perceived masculinity in expressing vulnerability were barriers to men disclosing suicidal thoughts (Jerant et al., 2019). Focus group discussions with young people (aged 16–25) acknowledged loss of privacy when disclosing suicidal thoughts as a barrier to disclosure, as well as the application of labels such as “risk” (Perry et al., 2020). A further study demonstrated context and timing of questions related to self-harm and suicide was important in-patient disclosure, as well as balancing the perceived risk of disclosure (stigma, judgement, hospitalisation) with the benefit of gaining support (Richards et al., 2019). For primary care staff, the lack of time for appointments and assessments was recognised as a key barrier to risk assessment and disclosure (Muñoz-Sánchez et al., 2018).
Theme 3: Screening for Suicide Risk
Screening for suicide risk in primary care included using short evidenced-based tools to identify those who may need further evaluation. This may have included assessment of the person's physical condition, previous suicide attempts, alcohol and other drug use, current mental state, history of mental illness, psychosocial factors and determination of current risk of suicide. Evidence showed that primary care staff did not routinely screen all patients for suicidal ideation (Frankenfield et al., 2000; Hooper et al., 2012), and those who were screened were usually noted as ‘low risk’ following assessment (Vannoy et al., 2011), thus highlighting the importance of providing treatment for people of varying levels of risk (Saini et al., 2014). It was recognised that both staff and patients wanted increased routine screening for suicidal thoughts (Bajaj et al., 2008) and that the use of these questions did not have a negative impact on patient’s feelings of self-worth (Crawford et al., 2011).
Theme 4: Training for Primary Care Staff
Several studies indicated the need for more training for primary care staff on the utility of suicide risk screening tools alongside interventions and signposting when assessing suicide risk in patients (Frankenfield et al., 2000; Hooper et al., 2012; Saini et al., 2014; Michail et al., 2016; Finnegan et al., 2018). The validity and usefulness of screening tools for suicide risk is continuously debated (Velupillai et al., 2019). To our knowledge, there have been no studies focusing on the impact of suicide prevention practices on long-term patient outcomes in healthcare settings (Gordon et al., 2020). One study on risk assessments in the UK found that there was more emphasis on using suicide risk screening to identify those at risk of suicide than to initiate evidence-based mental health interventions to prevent this outcome (Graney et al., 2020). Suicide risk screening does not therefore reduce suicide attempts when clinical interventions are not implemented (Miller et al., 2017). Although the use of tools such as the Brief Inventory of Thriving (BITS; Binder et al., 2020), Patient Health Questionnaire-2 (PHQ2; Dveweke et al., 2018) and Geriatric Depression Scale (GDS; Heisel et al., 2010), as well as training interventions such as Men and Providers Preventing Suicide (MAPS; Jerant et al., 2020) and Suicide Prevention Action Networks (SUPRANET; Elzinga et al., 2020) can be of benefit to supporting primary care staff when identifying suicidal risk, they need to be used alongside additional approaches (e.g. training for primary care staff, database use to highlight risk factors) and not as the sole approach. Roškar et al. (2010) found an educational programme aimed at primary care physicians on the recognition and treatment of depression and suicide prevention led to an increase of antidepressant prescriptions, but not a reduction in suicides.
Theme 5: Use of Language by Primary Care Staff
Several studies recognised the importance of the language used by primary care staff when interacting with patients. It was found that the use of negative closed gateway questions (e.g. “You don’t have thoughts of harming yourself?”) elicited patients to respond that they were not suicidal (McCabe et al., 2017). Similarly, a further study found that in some instances primary care staff unintentionally reinforced the idea of patients not revealing suicidal behaviours through no-problems-expected phrasing (e.g. “You don’t feel suicidal do you?”) (Vannoy et al., 2010). Clear communication was deemed as a key factor in making both patients (Jerant et al., 2020; Vannoy et al., 2010) and parents bereaved by suicide comfortable (Wainwright et al., 2020). Asking evidenced-based questions such as ‘Thoughts that you would be better off dead or of hurting yourself in some way’ from the Patient Health Questionnaire-9 (PHQ-9; Kroenke et al., 2001) have been shown to be reliably accurate in screening individuals with suicidal ideation (Kim et al., 2021).
Theme 6: Variation in Suicide Risk Assessment Across Health Services
The approach to the assessment of risk was shown as varying greatly between primary care staff (Chandler et al., 2015) and across different specialities such as mental health leads (Kaplan et al., 1999). Better communication between specialities was identified as a key area for improvement (Elzinga et al., 2020) and that patients had improved outcomes when professionals worked together collaboratively as a team (Wittink et al., 2020). For example, disseminating using clear language and to emphasise media (e.g. multimedia) over text was highlighted (Jerant et al., 2019) as important for communication with patients.
Discussion
This scoping review included 42 peer-reviewed studies that aimed to explore how PCPs/GPs can effectively recognise and respond to suicide-risk factors in patients consulting in primary care. The important role of primary care in suicide prevention, continues to be highlighted in a range of English national strategies, policies and programmes (DH, ). The research evidence also supported the idea that primary care has a key role in suicide prevention (John et al., 2020; Luoma et al., 2002; Mughal et al., 2021a, 2021b; Pearson et al., 2009) as many people visited their PCP in the months prior to death by suicide and disclosed both distal and proximal risk factors that could help with recognition of those people at risk and provide an opportunity for intervention. Within the review, we identified six key themes regarding suicide risk assessment in primary care. The findings from this research indicated that assessing the probability of dying by suicide has a low positive predictive value and should, therefore, not be the purpose of suicide-screening in primary care. The focus of suicide prevention in primary care should be recognising and responding to suicide-risk factors, such as comorbid physical health diagnosis and substance misuse. Evidence suggested that talking about suicide and responding to suicide-risk factors in primary care did not increase suicidal behaviours but could have prevented them. More training is needed for staff in primary care on assessing risk and communication about suicide behaviours. There are many collaborative efforts to standardise research processes around the world. However, specific components and strategies to include in person-centred suicide risk screening to mitigate suicide and risk in primary care is lacking.
Training was reported as an essential component of primary care for most included studies. Further funds should be allocated for the development of suicide risk screening learning resources and increased training within GP/PCP degree programmes. The lack of consistency in identifying specific training strategies could suggest that GPs/PCPs are at different stages of development based on the type of study being conducted, source of funding, and organisational training requirements. Inconsistencies in training may result in the variation of identifying and treating people at risk of suicide within primary care.
This review highlights the need for GPs/PCPs to be trained on how to identify suicide risk level and to respond accordingly. Strategies that could assist in achieving this would include developing person-centred care that involves the utilisation of validated risk assessment measures to aid communication about suicide. These strategies, however, depend on having knowledgeable and capable practitioners who are trained to discuss suicide more routinely when patients present with evidenced-based risk factors. Strategies tailored to patient needs could be advantageous to ensure patients receive the required treatment suitable to them.
Within the included studies, there was a lack of input from research participants and/or stakeholders described in the use of suicide risk screening tools. For example, there was limited knowledge about the experiences of clinicians utilising these tools within primary care. This is an important consideration for future studies to be participant-oriented and aligned with the patient needs. Working collaborations between patients and clinicians in service redesign has been shown to improve patient and health care outcomes (Bombard et al., 2018). With increased focus on patient engagement in clinical research (Saini et al., 2021), it is imperative to include participant perspectives in the development of suicide prevention initiatives.
Strengths and Limitations
This scoping review provdes details about the assessment of suicide risk in primary care. It has allowed us to clarify key concepts within the literature and reflect how research is conducted in the area through the inclusion of a wide range of study designs. While this review has several strengths, including the use of an iterative search strategy and a range of databases, there are limitations to note. First, the use of varying terminology to describe suicide risk assessments in the literature may have contributed to the limited number of documents identified for this review. Inconsistent terminology and descriptions can also impede the development of standardised risk assessment tools where there needs to be clarity on processes such as how and when they should be administered. Second, the language of included documents was limited to English; therefore, relevant non-English documents may have been missed. Third, this study does not include a formal quality assessment of studies and is not as rigorous as a systematic review. Finally, included studies used a deficit model not an asset model as they describe vulnerabilities or risk factors rather than protective factors.
Future Implications and Recommendations
Primary care is ideally placed to address the range of suicide-risk factors, including biological, physical-health, psychological and socio-economic factors. Physical-health, psychological and socio-economic factors are the focus of the emerging social prescribing programmes that are being utilised within suicide prevention initiatives (Centre for Mental Health, 2019). This scoping review has highlighted areas for improvement. These include the need for: (1) additional training for primary care staff in suicide prevention; (2) improved communication between partner organisations for improved referrals of patients who communicate suicidal risk; (3) clearer language use by practitioners that allow patients to feel safe to disclose suicidal ideation; and, (4) more intervention based research. Box 1 highlights the key áreas that should be considered when implementing suicide prevention programmes in primary care.
Conclusion
This scoping review, including peer-reviewed academic literature, provided knowledge for how primary care practitioners can effectively recognise and respond to suicide-risk factors. Previous studies described a range of strategies to address suicide prevention for high-risk groups, assessment of suicide prevention in primary care and evidenced-based suicide prevention interventions, however they have not focused on better recognition and response to specific suicide-risk factors more widely such as poor mental health, substance misuse and long-term physical health conditions. Ideally, these findings could inform the development of person-centred approaches to be used in primary care.
Data Availability
The data of the paper, which supports the analysis and results of this paper, are available with the corresponding author and the data can be obtained from the authors upon request.
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Saini, P., Hunt, A., Blaney, P. et al. Recognising and Responding to Suicide-Risk Factors in Primary Care: A Scoping Review. J of Prevention (2024). https://doi.org/10.1007/s10935-024-00783-1
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DOI: https://doi.org/10.1007/s10935-024-00783-1