Dsm Factoids Flashcards
Male:female ratio in mental retardation
1.5 : 1
Comorbidity rate -mental retardation and mental disorders?
Most common dis?
3-4 times higher than general pop
ADHD, mood disorder, PDD, stereotypic movement
How many sd’s below mean indicates learning disorder?
2 (occasionally 1-2)
What percentage of children with autism have mental retardation?
Male : female ratio?
75%
4-5 : 1
How many months does ADHD dx require?
Sx before what age?
Impairment must be…
6 months
Age 7
Two settings with significant impairment
Tourette’s requires
Most common comorbid dx
Multiple motor, one or more vocal tic
ADHD
Delirium
Rapid onset
Fluctuating course
Dementia requires
Alzheimer’s type
Vascular type
HIV type
“Memory plus”
Insidious onset, progressively deteriorating course
Stepwise pattern of deterioration, patch distribution of deficits
Forgetfulness, impaired attention, psychomotor slowing, apathy/social withdrawal
Positive sx of schizo
Delusions, hallucinations, disorganized speech, disorganized or CATATONIC behavior
Negative sx of schizo
Restriction in range and intensity of emotions and other functions
Incidence rate for schizo
Concordance rates ID twins F twins Sibs Both parents schizo
Incidence rate for schizo 1%
Concordance rates ID twins 50% F twins 20% Sibs 10% Both parents schizo 50%
Schizophreniform duration
1 - 12mo
Mood dx time durations MDE MANIC HYPOMANIC MIXED
2 wk
1 wk
4 day
1 wk
Sleep abnormalities / depression
40-60%
Reduced stage 3-4 sleep
Early onset of REM
Increased duration of REM early in night
MDD prevalence
Childhood, 1:1
Beginning in adolescence 2 females : 1 male
Lifetime prevalence women - 10-25%
Men -5-12%
Point prevalence
5-10% women
2-3% men
Depression concordance rates
ID twins 50%
F twins 20%
1.5-3 times more common in first degree biological relatives
Lewinsons theory of depression
Behavioral - low rates of reinforcement