Background
Symptoms of major depression are well described (see Box 1), but there is evidence that symptoms associated with depression are expressed differently across different cultures4 and genders.5 Clinicians need to be aware of local cultural and contextual issues in which symptoms that are suggestive of depression (physical and psychological, and mediated through language) might be expressed. There is a need for Aboriginal and Torres Strait Islander-led and community-owned research to be conducted within the Australian context to work towards increasing awareness around the varying expressions of depressive and suicidal behaviours. Clinicians can mitigate this with guidance from local Aboriginal and Torres Strait Islander health practitioners and health workers, and other cultural mentors, in understanding the local context, meaning and expression of symptoms of depression.
Data on what might be called the epidemiology of Aboriginal and Torres Strait Islander wellbeing are influenced by how culturally appropriate the measurement tools are and are derived from two main sources. One of these, the Mayi Kuwayu study, is led by Aboriginal and Torres Strait Islander people and is an ongoing study showing the links between wellbeing and connection to culture.1 The other source is the Australian Bureau of statistics national Aboriginal and Torres Strait Islander health survey (National Health Survey), most recently in 2018–19.6
Although the focus for this topic is on the prevention of depression, it is notable that in the National Health Survey close to 80% of Aboriginal and Torres Strait Islander people described themselves as ‘calm and peaceful’ and ‘full of life’ at least some of the time, whereas 87% described themselves as ‘happy’ at least some of the time compared with a little/none of the time.7
However, 36% of respondents in the Mayi Kuwayu study reported high or very high levels of psychological distress, and a further 29% reported moderate psychological distress.1 There is clear evidence from the Mayi Kuwayu study that experiences of discrimination and racism are linked to poorer SEWB. It is likely that many of the incidences of life stressors reported by Aboriginal and Torres Strait Islander people in previous national Aboriginal and Torres Strait Islander health surveys are underpinned by structural racism,8 resulting in higher rates of poverty, unemployment and exclusion from economic and community resources.
The proportion of Aboriginal and Torres Strait Islander people self-reporting high levels of psychological distress also differs geographically, being higher in non-remote areas (at 31%) than in remote areas (28%).6 Given these levels of psychological distress, it is not surprising that 24% of Aboriginal and Torres Strait Islander people reported having a mental and/or behavioural condition. People living in non-remote areas were threefold more likely than those living in remote areas to report a condition (28% versus 10%, respectively).6 The most common condition reported was anxiety (17%), with depression being the second most common.6 For both these conditions, the rate was higher among women than men.6
Instruments used to assess social and emotional wellbeing
Numerous instruments can be used to assess the psychological distress affecting Aboriginal and Torres Strait Islander people. Most instruments have been used to assess non-Indigenous populations and may not adequately cover Aboriginal and Torres Strait Islander concepts of SEWB.9 This lack of validation of the tools for use with Aboriginal and Torres Strait Islander Australians means their widespread use is not recommended. To quote the Australian Psychological Association, ‘Particular caution should be exercised where tests have not been extensively tried with Indigenous people and where test norms for those Indigenous populations are non-existent’.10 Moreover, Aboriginal and Torres Strait Islander communities in Australia are very diverse, and the use of any instrument requires clinical discretion to accommodate this diversity.
One of the most widely used tools in Australia for monitoring and assessing psychological distress is the Kessler Psychological Distress Scale (K10).11 This tool has not been validated as a screening tool for depression. Moreover, there are concerns from Aboriginal and Torres Strait Islander people that the K10 is not culturally appropriate for use within their communities. For this reason, the K10 was adapted in an Australian Bureau of Statistics stakeholder workshop, including representatives from the National Aboriginal Community Controlled Health Organisation, to make it more appropriate for use in Aboriginal and Torres Strait Islander communities. The resulting questionnaire has five questions and is known as the K5.12 The Mayi Kuwayu study further adapted the K5 questions for their surveys (MK-K5), to include slight modifications to the wording of questions and some clarifying statements. The K5 questions, and the modified version (ie MK-K5) questions are shown in Table 1.13,14
Table 1. Questions on the modified Kessler five-item (K5) and Mayi Kuwayu modified K5 (MK-K5) questionnaires to measure psychological distress
|
In the last four weeks, how often have you felt … |
K5 |
MK-K5 |
Nervous |
Nervous |
Without hope |
Hopeless (have no hope) |
Restless or jumpy |
Restless or jumpy |
That everything was an effort |
Everything was an effort (have no energy) |
So sad that nothing could cheer you up |
Sad |
The MK-K5 demonstrated face validity for psychological distress in Aboriginal and Torres Strait Islander people, and a cut-off score of 11/25 identified self-reported depression or anxiety.14 It is likely that the MK-K5 version of the measure is more appropriate for Aboriginal and Torres Strait Islander people, but there is still no evidence for its use as an outcome measure. Similarly, there is no evidence for its use as a screening tool for depression. Even if the MK-K5 does more accurately identify those who are more likely to have depression, its use for individuals presenting to a service will depend on clinical judgement, and it cannot, at this stage, be recommended for widespread use as a community or population screening tool.
Other non-Indigenous questionnaires have been adapted for use with Aboriginal and Torres Strait Islander peoples. One example is the Pearlin Mastery Scale,15 adapted for use in Arnhem Land with extensive involvement of the Yolgnu Community.
Brown et al adapted the PHQ-9,16 involving the expertise of focus groups of men from primary language groups in Central Australia. Given that the PHQ-9 is one of the most validated tools for screening for depression, this adaptation may prove to be very useful, and some Aboriginal Community Controlled Health Organisations have adopted it for routine use. The adapted PHQ-9 questions are provided in Table 2.
Table 2. Adapted questions from the Patient Health Questionnaire (PHQ-9), developed for potential use for screening Aboriginal and Torres Strait Islander people for depression
|
Questions |
None |
A little bit |
Most of the time |
All of the time |
In the last two weeks, how often have you been feeling the following: |
1 |
Have you been feeling slack, not wanted to do anything? |
0 |
1 |
2 |
3 |
2 |
Have you been feeling unhappy, depressed, really no good, that your spirit was sad? |
0 |
1 |
2 |
3 |
3 |
Have you found it hard to sleep at night, or had other problems with sleeping? |
0 |
1 |
2 |
3 |
4 |
Have you felt tired or weak, that you have no energy? |
0 |
1 |
2 |
3 |
5aA |
Have you not felt like eating much even when there was food around? |
0 |
1 |
2 |
3 |
5bA |
Have you been eating too much food? |
0 |
1 |
2 |
3 |
6 |
Have you been feeling bad about yourself, that you are useless, no good, that you have let your family down? |
0 |
1 |
2 |
3 |
7 |
Have you felt like you can’t think straight or clearly, it’s hard to learn new things or concentrate? |
0 |
1 |
2 |
3 |
8aA |
Have you been talking slowly or moving around really slow? |
0 |
1 |
2 |
3 |
8bA |
Have you felt that you can’t sit still; you keep moving around too much? |
0 |
1 |
2 |
3 |
9 |
Have you been thinking about hurting yourself or killing yourself? |
0 |
1 |
2 |
3 |
|
|
Total score (0–27) |
|
ANote: Scores for depressive symptoms – record only the highest in each of these subquestions.
Scoring (from the non-adapted PHQ-9): <5 = minimal depression; 5–9 = mild depression; 10–14 = moderate depression; 15–19 = moderately severe depression; 20-27 = severe depression.
The adapted PHQ-9 has been tested as a screening tool for depression in a range of Aboriginal and Torres Strait Islander communities, and achieved 91% specificity and 54% sensitivity for a cut-off score of 10.17 Importantly, in developing the adapted PHQ-9, seven key features of depression in Aboriginal men were identified that were not covered by the PHQ-9 questionnaire. These were anger, weakened spirit, homesickness, irritability, excessive worry, rumination, and drug or alcohol use. An earlier study of the adapted PHQ-918 also tested a subset of two questions:
- ‘Over the past two weeks, have you felt down, depressed or hopeless?’
- ‘Over the past two weeks have you felt little interest or pleasure in doing things?’
In that study of Aboriginal and Torres Strait Islander men with ischaemic heart disease attending an Aboriginal Medical Service in Darwin, an answer of ‘Yes’ to either question was 100% sensitive and 12.5% specific for depression.18 This means that a negative result rules out depression, but there are many false positives. It is not known how applicable this result is to other Aboriginal and Torres Strait Islander people without ischaemic heart disease. The cultural appropriateness of these questions has not been assessed more broadly in Aboriginal and Torres Strait Islander communities. However, the use of these tools to screen for depression in Aboriginal and Torres Strait Islander peoples is promising, and may guide clinician assessments, but cannot be currently recommended for widespread implementation.
Numerous tools have been developed specifically by and for Aboriginal and Torres Strait Islander peoples that take a more strengths-based approach to assessing wellbeing, as detailed below.
- The Strong Souls assessment tool (see Useful resources) was developed by the Menzies School of Health Research as a measure of sSEWB in the Aboriginal Birth Cohort Study. Although the tool is freely available, it has not been validated and there are no guidelines on its scoring. It may be useful to guide conversations in a clinical setting, but it cannot be recommended for use as a screening tool.
- The Westerman Aboriginal Symptom Checklist (see Useful resources), developed by Nyamal psychologist Dr Tracy Westerman AM, comes in versions for youth (WASC-Y) and adults (WASC-A). These checklists are designed to identify Aboriginal people at risk of depression, suicidal behaviours, drug and alcohol use, impulsivity, anxiety and cultural resilience as a moderator of risk. They show promise as potentially valuable screening tools in the future. The tools are only accessible through accredited training.
- The Here and Now Aboriginal Assessment (HANAA)19 takes the form of a yarning circle, promoting a conversation in a range of areas relating to SEWB , rather than a series of rated questions. It takes a broad approach to SEWB but is still oriented towards mental health diagnosis and treatment in mental health settings. The HANAA tool has been designed for use by those working in health and mental health services and community-based services. It is a screening tool exploring a range of SEWB domains and is intended to determine whether a formal mental health assessment is needed. It is not intended to be diagnostic for depression. HANAA has been used in various Aboriginal medical services and appears to be useful and culturally appropriate by those using the tool.20 It still requires validation in a broad range of settings.
- The Kimberley Mum’s Mood Scale (KMMS) is an adaptation of the Edinburgh Postnatal Depression Scale for use in Aboriginal and Torres Strait Islander communities in the Kimberley in north-western Australia, together with a second section to promote a conversation about psychosocial protective and risk factors. Validation studies showed that the KMMS can detect women most at risk of anxiety and depression in the postnatal period.21 It has not been validated in communities outside the Kimberley.
Although further evidence is needed before these tools can be recommended for routine use, healthcare providers may still find them useful in promoting discussions with patients about their social and SEWB. They may be especially useful for clinicians who do not have established relationships within an Aboriginal and Torres Strait Islander community and may lack expertise in assessing SEWB . There are courses that are associated with or are a requirement of using some of the tools, which may further enhance a clinician’s skills. Further, non-Indigenous Australian clinicians must be reminded of the importance of cultural competency and the continual and developmental nature of such awareness when ensuring the safety of their Aboriginal and Torres Strait Islander patients*.
*Note that while acknowledging that some services may prefer the term ‘client’, this chapter uses the term ‘patient’. This is consistent with the rest of the National Guide and does not change any of the recommendations.