Last partial update: July 2016 - Please read disclaimer before proceeding
Depression in Australia
Depression is the most common mental illness in Australia, with 3.4 per cent of males and 6.8 per cent of females reporting the condition in 1997. About 20 per cent of the population will suffer a significant bout of depression at least once in their lives. It is also the fourth most common reason for GP consultations.
About two per cent of children and four to eight per cent of adolescents will develop depression. In children the rate is equal in males and females but in adolescents the rate is twice as high in females; the adult pattern. Only about 30% of adolescents with depression are appropriately diagnosed and treated for the condition.
Depression is a disease that usually starts in young adults and adolescents and for this reason it is important that prevention strategies target this group and younger children. About 50% of adult mental illness starts before the age of 14 years.
The boundary between depression and anxiety is often unclear and it is very common for people to have symptoms of both conditions at the same time. (Their causes and treatments are similar.)
Episodes of depression in children and adolescents tend to last about nine months. Recurrence rates are high, with about 70 per cent experiencing a further bout of depression with the next three to eight years. The younger the person is when they have their first bout of depression, the more likely they are to have recurrent episodes.
As with adult depression, adolescent depression is often accompanied by other mental illnesses that exacerbate the problem, with about 66% of depressed adolescents having at least one additional mental illness and about 50% having two or more. Common accompanying conditions include anxiety disorders (40 per cent), attention-deficit hyperactive disorder (24 per cent), substance abuse (mainly alcohol) (25 per cent), anti-social behaviour, oppositional defiant disorder and personality disorders. These illnesses often precede the depression. An important part of assessing a depressed adolescent is looking for such associated illnesses, especially substance abuse.
Source – Adapted from Australian Institute of Health and Welfare: Mathers 1999. |
What causes depression?
Psychological, biological and environmental factors can all cause depression and any combination of these can be present in one person. Psychological causes relate primarily to early life experiences, inappropriate parenting and learned negative thoughts. Some personality traits that are more common in depressed people include shyness, perfectionism, chronic worrying, unassertiveness, self criticism, anxiety in social situations and low self-esteem.
Contributing environmental factors are usually causes of significant stress, including friendship / relationship problems, school stress, emotional / physical abuse (including sexual abuse, which is more common in females), bereavement and traumatic events. In general, long standing problems such tend to be more important than recent stressful events.
The prime biological factor is genetic predisposition and this is a major cause in around 40 per cent of depressed people. Depression often runs in families. Other biological causes include chronic illness, hormonal changes and some medications. Biological factors (and quite probably many psychological and environmental factors) cause depression by altering chemicals in the brain as follows;
- reducing the levels of chemicals that assist in nerve cell transmissions in the brain. These substances are called neurotransmitters, the principal ones being serotonin and noradrenalin. Drugs used in treating depression act to alter the levels of these chemicals in the brain.
- increasing levels of a brain hormone called corticotrophin-releasing factor (CRF), which is released in response to the increased stress levels that occur as part of the body’s reaction environmental factors such as emotional abuse (see below) or just because the depressed person feels more stressed because of their feelings. This elevated CRF level is directly responsible for many of the physical symptoms associated with depression, such as the weight loss and sleep disturbances. It is also thought that raised CRF causes damage in the hippocampal part of the brain and that recurrent bouts of depression may leave permanent scars in the brain that mean brain receptors do not respond as well to neurotransmitters such as serotonin. (This has the same effect as reducing serotonin levels, the chemical mediator of depression that was mentioned previously.) It is likely that such brain scarring is responsible for the increase in the recurrence rate of depression as chronic sufferers of depression age and why treating depression in the elderly is more difficult. The effects of such changes can be reduced by the use of antidepressant medications that act to increase serotonin (and noradrenalin) levels; the so-called SSRIs.
Risk factors for adolescent / childhood depression
- A family history of depression. Depression in a parent is a particular risk, especially if it occurred early in life / is a chronic condition. (This is a very important factor and may account for up to 50% of overall incidence in the population.)
- The death of a parent
- Parent separation / divorce
- The recent break up of an important relationship
- Peer group difficulties
- Sexual abuse
- Chronic physical illness
- Alcohol or illicit drug abuse
- Attention deficit/hyperactivity disorder
- Female gender
- School failure
- A shy, inhibited anxious personality
Preventing depression in children
This very important topic is dealt with in a separate section; Preventing anxiety and depression in children and adolescents. All parents need to adopt the preventive strategies mentioned in this section as they can help all children lead happier lives and prevent some from developing actual anxiety and depression. They also need top rwsd the separate section on parenting: Parenting
Diagnosis of depression
Symptoms of depression in children and adolescents
- Depressed mood
- Irritability / anger / conflict at home or school (especially in adolescents)
- Hopelessness / inability to experience pleasure (especially in adolescents)
- Reduced activity levels
- Sleep disturbances (especially in adolescents)
- Medical complaints. These are especially common in children, especially headaches and stomachaches
- Over eating (especially in adolescents)
- Tiredness (especially in adolescents)
Symptoms indicating more severe depression include:
- Reduced activity levels
- Guilt
- self-reproach
- weight fluctuations
- Deteriorating school performance
Criteria for diagnosing depression in teenagers
The criteria mentioned below for diagnosing depression in teenagers is a guide only. It is no substitute for assessment by a suitably qualified health professional. Anyone who is worried that a teenager they know has depression needs to seek medical advice from a practitioner qualified to make this diagnosis.
Depression is very likely in teenagers if all the three of the following occur:
- For most of the day, nearly everyday, for two weeks, the teenager is either:
- unhappy or irritable
- shows loss of interest or pleasure in most activities
- The teenager shows at least five of the following symptoms:
- depressed or irritable mood
- loss of interest in activities
- significant weight or appetite change
- insomnia or hypersomnia
- psychomotor agitation or retardation
- fatigue or loss of energy, often for school / leisure activities.
- feelings of worthlessness or guilt
- diminished ability to think or concentrate, or indecisiveness. (This can lead to impaired school performance and attendance.)
- recurrent thoughts of death or suicide
- The above symptoms are causing significant distress or impairment in school, social or family functioning.
The onset is often slow and insideous, which is an important reason for the condition being missed.
As with adult depression, adolescent and child depression is often accompanied by other mental illnesses that exacerbate the problem. Common accompanying conditions include anxiety disorders (40 per cent), attention-deficit hyperactive disorder (24 per cent), substance abuse (mainly alcohol) (25 per cent) and anti-social behaviour. These illnesses often precede the depression. An important part of assessing a depressed adolescent is looking for such associated illnesses, especially substance abuse.
Substance abuse and medical conditions, such as hypothyroidism and brain injury / disease (e.g. stroke, epilepsy or Parkinson’s disease) can cause similar symptoms and need to be excluded as causes of the depression symptoms by a doctor, as does recent bereavement.) Grief following a significant life event can sometimes appear like depression. However, grief reactions are usually short-lived with reduced functioning usually returning relatively quickly. The person also does not usually experience feelings of hopelessness or thoughts of ones own death. Of course, unresolved grief can lead to depression.
A family history of depression, especially a parent, increases the risk of depression occurring as does the death of a parent, separation / divorce, sexual abuse, physical illness and poor school performance.
Suicidal thoughts are common and suicide attempts occur in up to 30 per cent of cases. About 15% of teenagers with a depressive illness will complete suicide at some time in their lives.)
Always seek help if worried
It is important to recognise that assessing such symptoms is how doctors, psychologists and other health workers diagnose depression when seeing patients. Affected young people and relatives need not and indeed should not keep to such rigid definitions as they are not trained in making diagnostic decisions. The message is that such lists of symptoms are only a guide and anyone who is concerned about them self or a friend or relative should always seek help.
The possibility of bipolar disease
If the teenager suffers from periods of elation or elevated mood or there is a family history of bipolar disorder, then this diagnosis should also be considered. (About 40% of teenagers with depression develop a bipolar disorder.)
How can a parent help a child they suspect might suffer from depression?
Being the primary carer for a depressed person is often a difficult task and it is important to remain in good mental and physical health by having time off and doing some enjoyable activities. Everyone will be better off. Ask family members and friends to help.) |
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Mental health resources
Mental Health Branch of the Department of Health and Aged Care www.mentalhealth.gov.au
This site provides information about crisis supports and contacts, general mental health information, mental health information brochures / publications about specific topics such as depression, anxiety, information about suicide prevention etc.
Ph 1800 066 247
Beyond Blue: The National Depression Initiative https://www.youthbeyondblue.com/?&gclid=CICs69Tvgc4CFQiVvQodF-0MFA
ybblue (Beyond Blue’s youth program) www.ybblue.com.auBeyond Blue’s youth program (Self harm at ybblue (https://www.youthbeyondblue.com/understand-what's-going-on/self-harm-and-self-injury
Black dog institute www.blackdoginstitute.org.au
Provides information for clinicians and patient education.
Moodgym www.moodgym.anu.edu.au
An interactive program of CBT, more aimed at depression, developed by the Centre for Mental Health Research at the Australian National University.)
Reachout www.reachout.com.au
A resource for young people with depression.
Lifeline www.lifeline.org.au Ph 13 1114
Lifeline provides an immediate counseling service for all people)
Kids Help Line www.kidshelp.com.au
A national 24 hour counseling service for children and young people)
Ph 1800 551 800
CRUfAD, The Clinical Research Unit for Anxiety and Depression www.crufad.com
CRUfAD is a group of researchers and clinicians concerned with anxiety and depression. It is a joint facility of St Vincent's Hospital Ltd and the University of New South Wales in Sydney, Australia. The self-help section of the web site has useful information about both anxiety and depression for the general public.
Anxiety Panic Hub www.panicattacks.com.au
A consumer web site with a focus on meditation / mindfulness.
Mindmatters http://www.mindmatters.edu.au
A program that introduces mental health education to secondary schools.
A helpful Australian Government web site:
Children of Parents with a Mental Illness ('COPMI') (An Australian Government web site.)
http://www.copmi.net.au/
Further reading on mental health topics
Rowe L, Bennett D and Tong B. I just want you to be happy. Preventing and tackling teenage depression, Allen and Unwin 2009.
Rapee, R., Spence, S., Cobham, V. and Wignall, A. Helping your anxious child. A step by step guide for parents. New Harbinger, 2000.
Macquarie University Child and Adolescent Anxiety Unit
This unit runs 12 week courses for anxious children in the 6 to 12 year age group.
www.psy.mq.edu.au/muaru.
Rapee, R.M. (2001). Overcoming shyness and social phobia: A step by step guide. Sydney: Lifestyle Press.
Deals with social phobias and shyness
Wells, A. (1997) Cognitive therapy of anxiety disorders; a practice manual and conceptual guide. Chichester. John Wiley and Sons, 1997.
Beating the blues by Susan Tanner and Jillian Ball. Published by Susan Tanner and Jillian Ball. Distributed by Tower books.
A good book for issues dealing with the treatment of depression.
Don’t panic. Overcoming anxieties, phobias and tensions by Andrew Page. Published by Liberty One Media.
Deals with panic disorders, phobias and anxiety.
Aisbett, B. Living with it; a suvivor’s guide to panic attacks. Pymble, NSW. HarperCollinsPublishers, 1993.
Aisbett, B.Taming the black dog. Pymble, NSW. HarperCollinsPublishers, 2000.
Calrk, S. After suicide: help for the bereaved. Melbourne. Hill of Content Publishing Company Pty Ltd, 1995.
Further information on parenting
The Sydney Children's Hospitals Network (includes The Children’s Hospital at Westmead.)
This hospital network's web site (https://www.schn.health.nsw.gov.au) is a great source of information on children’s health topics. It provides fact sheets about many child health issues that are free and downloadable and lists books on most child health topics that have been assessed by members of the medical staff at the hospital. These books are available for purchase from the Kids Health Bookshop at The Children’s Hospital at Westmead (Phone 02 – 9845 3585) or they can be purchased via the ‘e-shop’ on the web site. Any profits go into supporting the work of the hospital.
Some suggested books on parenting children
Every parent. A positive approach to children’s behaviour by Matthew R Sanders, PhD.
More Secrets Of Happy Children by Steve Biddulph
Raising Kids- A parent’s survival guide by Charles Watson, Dr Susan Clarke and Linda Walton.
Bully Busting by Evelyn M. Field
Raising Boys by Steve Biddulph
Your Child's Self Esteem by Dorothy Corkhille Briggs
(All these books and many more appear in the ‘self esteem, behaviour and family life’ section of the books section in parents section of the Children’s Hospital at Westmead web site. https://kidshealth.schn.health.nsw.gov.au/bookshop-and-products) There is information about each book on the web site; just click over the title.) Better still, for parents able to visit the hospital, most of the books are available to view and there will be someone there to help with book selection.)
Some suggested books on parenting adolescents
What to do when your children turn into teenagers by Dr D. Bennett and Dr Leanne Rowe (This is a wonderful book that is unfortunately now out of print. Second hand copies may still be available.)
You can't make me by Dr D. Bennett and Dr Leanne Rowe
I just want you to be happy. Preventing and tackling teenage depression. by Professors Leanne Rowe, David Bennett and Bruce Tonge. Published by Allen and Uwin, 2009.
Puberty boy by Geoff Price
Puberty girl by Shushann Movsessian
The puberty book by Wendy Darvill and Kelsey Powell
Teen esteem by Dr P. Palmer and M. Froehner
Most children suffer anxieties at some time and another book (not on the above list) that is very useful for parents is - Helping your anxious child. A step by step guide for parents. by Rapee, R., Spence, S., Cobham, V. and Wignall, A.New Harbinger, 2000.