Epidemiology Flashcards
Percent of people who will be affected by Schizophenia in their lifetime
1%
Men are affected ____ as women with Schizophrenia. What is the age of presentation for both?
Who is schizophrenia worse in? Why?
Men are affected at the same rate as women with Schizophrenia.
Men present around age 20
Women present around age 30
Schizophrenia is worse in men, because men tend to have worse negative symptoms and are less capable of living in society.
Age range of for presentation of schizophrenia
15-45 (rarely outside that range).
Likelyhood that a monozygotic twin will develop schizophrenia?
50%
Likelyhood of developing schizophrenia if both parents have schizophrenia?
40%
Likelyhood of developing schizophrenia if one first-degree relative is affected?
10-12%
Prognostic percentages for schizophrenia?
40-50% will remian significantly impaired; 20-30% function very well in society with medication.
Prognosis from best to worst:
- Schizophrenia
- Breif Psychotic Disorder
- Schizoaffective Disorder
- Mood Disorder
- Schizophreniform disorder
Mood Disorder > Brief Psychotic Disorder > Schizoaffective Disorder > Schizophreniform Disorder > Schizophrenia
Delusional Disorder Prognosis
50% full recovery
20% decreased symptoms
30% no change
Drug that can be used to decrease progression to Schizophrenia from Schizophreniform or Brief Psychotic Disorder
There are NO drugs that decrease the natural progression to schizophrenia.
Chances of committing suicide later in life after being hospitalized for Major Depression Episode
15%
Percent of manic patients that have psychotic symptoms
75%
Lifetime prevalence of Major Depression
15-20%
Average age of onset for Major Depression
40 yo
Prevalence in high in Men or Women for Major Depression?
Women are twice as likely to develop depression compared to men
Ethnic preference for major depression
None
Socioeconomical preference for major depression
None
Prevalence in elderly for major depression
25-50%
Likelyhood of depression with a first-degree relative
2-3x more likely to develop depression
likelyhood of depression with a monozygotic twin positive for depression
50%
likelihood of depression in a dizygotic twin with depression
10-25%
Risk of subsequent depression within the next 2 years after first episode
50%
Patients successfully treated with medical therapy for depression with SSRI
75%
Lifetime prevalence of Bipolar
1%
Men are affected ___ women with Bipolar
the same as
The ethinic prevelance of bipolar
none
Average age of onset for bipolar
30 yo
First degree relative to develop bipolar
8-18x more likely
Monozygotic twins to develop bipolar
75%
Dizygotic twins to develop bipolar
5-25%
recurrence of symptoms after first manic episode
93%
% of Patients treated with Lithium for bipolar see improvement of symptoms
50-60%
Bipolar II lifetime prevalence
0.5%
Bipolar II age of onset
30 yo
Gender preference for bipolar II
women
Dysthymic Disorder Lifetime prevalence
6%
Dysthymic Disorder gender preference
2-3x more common in women
Dysthymic Disorder age of onset
25 yo in 50% of pts
