Featured Research

from universities, journals, and other organizations

Losing a family member in childhood associated with psychotic illness

Date:
January 22, 2014
Source:
BMJ-British Medical Journal
Summary:
Experiencing a family death in childhood is associated with a small but significant increase in risk of psychosis, suggests a paper published today.

Experiencing a family death in childhood is associated with a small but significant increase in risk of psychosis, suggests a paper published today on bmj.com.

Related Articles


The researchers say that the risks are highest for children who have experienced a suicide in the 'nuclear family' (brothers, sisters, parents).

Previous studies have concluded that the risk of adult disease can be influenced by genetics, lifestyle and environmental experience. There is also evidence that maternal psychological stress adversely affects the development of the fetus.

Population studies have so far provided weak support for an association between prenatal maternal psychological stress and later psychosis. Researchers from the UK, US and Sweden therefore set out to examine the association between deaths in the family as a form of severe stress to the individual and subsequent psychosis. Data were taken from Statistics Sweden and the Swedish National Board of Health and Welfare and children born between 1973 and 1985 in Sweden.

Definitions of psychosis were: non-affective psychosis (including schizophrenia) and affective psychosis (bipolar disorder with psychosis and unipolar depression with psychosis).

Exposure periods were divided into 'any exposure' (all pre and postnatal); 'any prenatal' (prior to birth) and 'any postnatal' (birth up to 13 years of age) and further subdivided by trimester (first, second, third) and by three year periods in childhood between birth and 13 years of age (0-2.9 years; 3-6.9 years and 7-12.9 years). If more than one exposure occurred during the study period, priority was given to the earliest exposure.

Death was categorised into suicide, fatal injury / accident and others (such as cancers and cardiac arrests).

Models were adjusted for year of birth, child sex, maternal and paternal age, maternal and paternal nationality, parental socioeconomic status and history of any psychiatric illness in the family.

The final number of children included in the study was 946,994. Altogether, 321,249 (33%) children were exposed to a family death before the age of 13. Of individuals exposed to any death during the study period, 1323 (0.4%) developed a non-affective psychosis while 556 (0.17%) developed an effective psychosis. 11,117 children were exposed to death from suicide, 15,189 from accidents and the majority, 280,172 to deaths due to natural causes.

No increased risk of psychosis was seen following exposure in any prenatal period. Postnatally, an increased risk of 'all psychosis' was associated with deaths in the nuclear family and risk increased the earlier in childhood the death occurred.

Risks associated with exposure to suicide were higher compared with exposure to deaths from accidents which in turn were higher than risks associated with other deaths from natural causes.

The largest risk was seen in children exposed ages 0-3 years and risks reduced as age of exposure increased.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. K. M. Abel, H. P. Heuvelman, L. Jorgensen, C. Magnusson, S. Wicks, E. Susser, J. Hallkvist, C. Dalman. Severe bereavement stress during the prenatal and childhood periods and risk of psychosis in later life: population based cohort study. BMJ, 2014; 348 (jan21 2): f7679 DOI: 10.1136/bmj.f7679

Cite This Page:

BMJ-British Medical Journal. "Losing a family member in childhood associated with psychotic illness." ScienceDaily. ScienceDaily, 22 January 2014. <www.sciencedaily.com/releases/2014/01/140122091852.htm>.
BMJ-British Medical Journal. (2014, January 22). Losing a family member in childhood associated with psychotic illness. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2014/01/140122091852.htm
BMJ-British Medical Journal. "Losing a family member in childhood associated with psychotic illness." ScienceDaily. www.sciencedaily.com/releases/2014/01/140122091852.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Mind & Brain News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Are Female Bosses More Likely To Be Depressed?

Are Female Bosses More Likely To Be Depressed?

Newsy (Nov. 24, 2014) — A new study links greater authority with increased depressive symptoms among women in the workplace. Video provided by Newsy
Powered by NewsLook.com
Winter Can Cause Depression — Here's How To Combat It

Winter Can Cause Depression — Here's How To Combat It

Newsy (Nov. 23, 2014) — Millions of American suffer from seasonal depression every year. It can lead to adverse health effects, but there are ways to ease symptoms. Video provided by Newsy
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) — Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Milestone Birthdays Can Bring Existential Crisis, Study Says

Milestone Birthdays Can Bring Existential Crisis, Study Says

Newsy (Nov. 21, 2014) — Researchers find that as people approach new decades in their lives they make bigger life decisions. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins