Sleep quality problems three decades post-disaster

Area of Science:

• Trauma and Stress-Related Disorders
• Sleep Medicine
• Military Psychology

Background:

• Sleep disturbances are a hallmark of posttraumatic stress disorder (PTSD).
• Avalanche survivors may experience unique challenges impacting sleep and mental health.
• Hyperarousal is a key symptom cluster in PTSD.

Purpose of the Study:

• To compare sleep quality and hyperarousal between avalanche-exposed and unexposed soldiers.
• To investigate the association between avalanche exposure, sleep quality, and PTSD symptoms.
• To examine the relationship between sleep quality, hyperarousal, and PTSD symptom severity.

Main Methods:

• A comparative study involving 12 avalanche survivors and 9 unexposed soldiers.
• Assessment of sleep quality using the Pittsburgh Sleep Quality Index (PSQI).
• Evaluation of PTSD symptoms and hyperarousal using the Posttraumatic Symptom Scale-10 (PTSS-10) and Impact of Event Scale-15 (IES-15).

Main Results:

• No significant differences in general sleep quality were found between exposed and unexposed groups.
• A significant association was observed between high PTSD symptom scores with hyperarousal and sleep quality problems 30 years post-avalanche.
• Sleep quality problems (PSQI > 5) were associated with a 2.5 times higher likelihood of experiencing hyperarousal symptoms throughout the follow-up period.

Conclusions:

• Sleep quality problems may be linked to hyperarousal symptoms in soldiers with elevated PTSD symptom scores.
• These findings highlight the enduring impact of trauma on sleep and arousal regulation.
• Further research is warranted to explore the long-term implications of sleep disturbances in trauma survivors.