Comorbidities

Question 1

What is the most common psychiatric disturbance seen in Parkinson Disease?

Answer 1

Depression

Question 2

Among pts with OCD, 90% have another psychiatric d/o

What are the most common comorbidities in OCD?

Answer 2

1) Anxiety d/o 76% (panic, SAD, GAD, phobia)
2) Mood d/o >60% (41% MDD, 10-20% bipolar)
3) Tic disorder 30% –> usually men with childhood onset
4) OCPD 25-30%

Others:
Other Obsessive-Compulsive and Related Disorders (BDD, Trichotillomania, Skin-picking)
ODD, ADHD

Question 3

In what disorders should you screen for OCD, since there is a higher incidence than in the general population?

Answer 3

Schizophrenia/schizoaffective d/o - 12%
Bipolar d/o
Eating d/o (AN + BN)
Tourette’s

Question 4

What is the most common comorbidity among children with ADHD?

Answer 4

ODD (40%) (1/2 of combined cases and 1/4 of inattentive-type)
- Conduct (1/4 of combined-type cases; 14% in MTA)

then Anxiety (34%) - based on MTA study

Question 5

What is the most common comorbidity among youth with Bipolar disorder?

Answer 5

ADHD (90%)
ODD (80%)
Anxiety (50%)

Question 6

What is the rate of comorbid anxiety disorders in adults with Bipolar Disorder?

Answer 6

80-90% - anxiety disorders are the most common comorbidity in adults with Bipolar Disorder

Question 7

What is the lifetime prevalence of SUD in adults with Bipolar Disorder?

Answer 7

50%

Question 8

What are the most common comorbidities in adults with ADHD?

Answer 8

Anxiety
Depression
Substance Use

Question 9

What is the most common comorbidity in ODD?

Answer 9

ADHD (London: 70% of kids with ODD will have ADHD!)

Question 10

What is the most common comorbidity in schizophrenia?

Answer 10

Substance use (60% lifetime - excluding nicotine for which rates are 70-90%)