**Study Notes on PTSD

Post-Traumatic Stress Disorder (PTSD)

Clinical Description of PTSD

  • PTSD can have a delayed onset where some individuals may show mild or no symptoms immediately after experiencing a trauma.

    • Symptoms may develop 6 months or even years later.

  • In children, symptoms may manifest as:

    • Traumatic play

    • Bedwetting

    • Thumb sucking

    • Fear of the dark

    • Separation anxiety

  • The likelihood of developing PTSD is influenced by:

    • The intensity and duration of exposure to the traumatic event:

    • Greater intensity and duration increase the risk of developing the disorder.

    • Proximity to the traumatic event:

    • Closer proximity increases the likelihood of developing PTSD.

Acute Stress Disorder (ASD)

  • Defined as a severe reaction to a traumatic event that is similar to PTSD.

  • Prevalence of PTSD following ASD:

    • 50% of individuals diagnosed with acute stress disorder will eventually develop PTSD.

  • Not all trauma survivors with PTSD will meet the criteria for ASD:

    • 50% of trauma survivors who develop PTSD did not meet the criteria for ASD.

  • Symptoms of ASD generally last between 1 and 3 months.

    • If symptoms persist beyond 3 months, it may be classified as chronic PTSD.

Late-Onset PTSD

  • Observations show that in aging veterans exposed to stressful combat experiences:

    • Symptoms of PTSD can emerge later in life as a result of long-term exposure to adverse events.

    • The veteran's age and cumulative exposure to trauma contribute to the possibility of developing PTSD symptoms many years later.

Complex Post-Traumatic Stress Disorder (C-PTSD)

  • C-PTSD normally emerges as a response to long-term and repeated trauma.

  • It is more commonly observed in individuals with childhood experiences of trauma.

  • Symptoms tend to be more severe than those of PTSD.

  • C-PTSD is not recognized as an independent diagnostic label in the DSM.

PTSD Statistics

  • Lifetime prevalence of trauma exposure is approximately 70% among individuals.

  • The lifetime prevalence of PTSD is estimated at 6%.

Types of Trauma Leading to PTSD

  • Types of trauma that result in the highest occurrences of PTSD include:

    • 49%: Rape

    • 31%: Assault

    • 14%: Sudden deaths

    • 3%: Natural disasters

Course of PTSD

  • Prevalence of PTSD symptoms over time:

    • 1 month: 75%

    • 2 months: 64%

    • 3 months: 54%

    • 6 months: 50%

    • 9 months: 46%

    • 12 months: 41%

  • Most individuals generally recover within 1 year after the trauma.

Comorbidity in PTSD

  • A significant majority of individuals with PTSD often experience comorbid disorders:

    • Up to 92% of people with PTSD may also have co-occurring conditions such as:

    • Depression

    • Anxiety

    • Substance abuse

Causes of PTSD

  • Predisposition factors leading to PTSD include:

    • Biological Vulnerability:

    • Genetic factors account for approximately 30-72% of the variability observed in PTSD expression.

    • Personality Traits:

    • Certain traits are common to other disorders such as Generalized Anxiety Disorder (GAD), Major Depressive Disorder (MDD), and Panic Disorder (PD).

    • Psychological Vulnerability:

    • An inherent tendency to experience anxiety, high levels of anxiety sensitivity, and generalized psychological vulnerability.

  • Environmental Effects:

    • Factors contributing to PTSD risk include exposure to traumatic events, child abuse, family instability, lack of support systems after trauma, and lower educational status.