Two studies being presented as posters later this morning examine the negative impact of late bedtimes on teens.
One study (#1064) suggests that parental-mandated bedtimes could help protect teens from depression and suicidal thoughts by lengthening sleep duration. Results show that adolescents with parental-mandated bedtimes at midnight or later were 25 percent more likely (adjusted odds ratio 1.25) to suffer from depression and 20 percent more likely (adjusted odds ratio 1.20) to have suicidal ideation compared with adolescents who had parental-mandated bedtimes of 10 p.m. or earlier. Multivariate models show that sleep duration may have acted as a mediator of these associations; thus short sleep may be a risk factor for depression and suicidal ideation.
Another study (#0161) shows that being a “night owl” or “evening type” – preferring to go to bed late at night and wake up later in the day – is associated with lower academic performance in college and a decline in academic performance from college to high school. Results indicate that evening types had significantly lower first year college GPA (2.84) than “morning types” and “intermediate types” (3.18). They also slept on average 41 minutes less on school nights. For all students, “sleep hygiene” was related to academic performance.
You can download the SLEEP 2009 abstract supplement as an 11 MB file in PDF format.
Showing posts with label depression. Show all posts
Showing posts with label depression. Show all posts
Tuesday, June 9, 2009
Monday, June 8, 2009
The Genetics of Insomnia in Children & Teens
A study (#0808) being presented later this morning as a poster examined the genetic heritability of insomnia in a sample of twins. Results show a moderate heritability in children between 8 and 16 years of age, with significant genetic effects shared between insomnia, depression and anxiety. This suggests that overlapping genetic mechanisms may underlie these three disorders and may help explain why insomnia is so common in people who have depression and anxiety.
You can download the SLEEP 2009 abstract supplement as an 11 MB file in PDF format.
You can download the SLEEP 2009 abstract supplement as an 11 MB file in PDF format.
Studies Examine Sleep Problems in Children
Two studies being presented today focus on sleep and childhood.
A study (#0304) being presented later this morning as a poster suggests that napping may have a significant influence on young children’s daytime functioning. Results indicate that children between the ages of 4 and 5 who did not take daytime naps were reported by their parents to exhibit higher levels of hyperactivity, anxiety and depression than children who continued to nap at this age.
Another study (#0197) being presented this afternoon as an oral presentation reports that primary care pediatricians may be under-diagnosing sleep disorders in children and teens. Results show that less than four percent of children at 32 primary care pediatric practices were diagnosed with a sleep disorder, which is significantly lower than prevalence rates reported in epidemiological studies.
You can download the SLEEP 2009 abstract supplement as an 11 MB file in PDF format.
A study (#0304) being presented later this morning as a poster suggests that napping may have a significant influence on young children’s daytime functioning. Results indicate that children between the ages of 4 and 5 who did not take daytime naps were reported by their parents to exhibit higher levels of hyperactivity, anxiety and depression than children who continued to nap at this age.
Another study (#0197) being presented this afternoon as an oral presentation reports that primary care pediatricians may be under-diagnosing sleep disorders in children and teens. Results show that less than four percent of children at 32 primary care pediatric practices were diagnosed with a sleep disorder, which is significantly lower than prevalence rates reported in epidemiological studies.
You can download the SLEEP 2009 abstract supplement as an 11 MB file in PDF format.
Monday, June 9, 2008
Oral Presentations Describe Research Linking Sleep to ADHD, Suicidal Symptoms
Research abstracts being presented as oral presentations this afternoon at SLEEP 2008 link sleep problems to attention-deficit/hyperactivity disorder (ADHD) and suicidal symptoms.
In a study of 882 ninth-grade students (ID# 0321), teens reported sleeping an average of 7.6 hours per school night. According to the American Academy of Sleep Medicine, teens need a little more than nine hours of sleep each night.
Getting less sleep on school nights increased students’ risk of having emotional disturbances and ADHD. Every additional hour of sleep on school nights decreased the risk of emotional disturbance by 25 percent and decreased the risk of ADHD by 34 percent.
In another study of 322 undergraduates at a large university (ID# 0958), sleep quality and insomnia severity were significantly associated with an increased risk of depression. Severe insomnia also was a significant predictor of an increased severity of suicidal thoughts. After controlling for depression, sleep quality and insomnia severity jointly predicted an increased severity of suicidal thoughts.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
In a study of 882 ninth-grade students (ID# 0321), teens reported sleeping an average of 7.6 hours per school night. According to the American Academy of Sleep Medicine, teens need a little more than nine hours of sleep each night.
Getting less sleep on school nights increased students’ risk of having emotional disturbances and ADHD. Every additional hour of sleep on school nights decreased the risk of emotional disturbance by 25 percent and decreased the risk of ADHD by 34 percent.
In another study of 322 undergraduates at a large university (ID# 0958), sleep quality and insomnia severity were significantly associated with an increased risk of depression. Severe insomnia also was a significant predictor of an increased severity of suicidal thoughts. After controlling for depression, sleep quality and insomnia severity jointly predicted an increased severity of suicidal thoughts.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
Sleep Problems Linked to Depression and Anxiety
Research abstracts being presented as poster presentations this morning at SLEEP 2008 show a link between sleep problems and emotional disturbances.
A study (ID# 0204) compared 122 children who have major depression with 200 healthy peers. Eighty-two percent of depressed children reported a sleep problem, compared to only five percent of controls.
A study of children in grades 2 – 5 (ID# 0269) found that children at risk for sleep-disordered breathing are more likely than their peers to have anxiety (19.7 percent vs. 7.3 percent).
A study of 14 mothers of twins (ID# 0374) shows that more than 70 percent had severe postpartum sleep restriction of less than six hours of sleep in 24 hours. About half of the women also reported mild to severe depression symptoms.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
A study (ID# 0204) compared 122 children who have major depression with 200 healthy peers. Eighty-two percent of depressed children reported a sleep problem, compared to only five percent of controls.
A study of children in grades 2 – 5 (ID# 0269) found that children at risk for sleep-disordered breathing are more likely than their peers to have anxiety (19.7 percent vs. 7.3 percent).
A study of 14 mothers of twins (ID# 0374) shows that more than 70 percent had severe postpartum sleep restriction of less than six hours of sleep in 24 hours. About half of the women also reported mild to severe depression symptoms.
The SLEEP 2008 abstract book is available online at http://www.journalsleep.org/PDF/AbstractBook2008.pdf.
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