The prevalence of posttraumatic stress disorder symptomatology and diagnosis in burn survivors: a systematic review and meta-analysis

Great disparity is observed among studies investigating the prevalence of PTSD after burns. This systematic review and meta-analysis aimed to explore the pooled prevalence of PTSD in adult burn survivors over the first two years post-burn. Five electronic databases were searched for observational studies assessing the prevalence of PTSD symptoms after burns. Meta-analysis was performed using an auto-correlation and hierarchical effects model to estimate the course of PTSD prevalence rates over time and to establish point-prevalences. The effect of different moderators over time was tested with meta-regression. Thirty-two studies were included in the meta-analysis. The overall pooled prevalence of PTSD was 20.5% (95% CI 16.4-24.6) and the prevalence significantly decreased by about 0.37% per month post-burn over time. Questionnaire-based studies, and studies published from 2000 onwards, were more likely to show a decrease in PTSD prevalence over time compared to diagnostic studies and studies before 2000. A qualitative comparison revealed that inter-continental differences are likely to be complex and multi-factorial. PTSD affects about one in five burn survivors, with moderately decreasing rates from six months post-burn onwards. Early screening and identification of burn survivors who require specialist psychological care are vital for burns services.

Prevalence and risk factors for acute stress disorder and posttraumatic stress disorder after burn injury

BACKGROUND

Psychological consequences of burn injury can be profound. Acute stress disorder (ASD) and posttraumatic stress disorder (PTSD) are known sequelae, but routine identification is challenging. This study aims to identify patient characteristics associated with outpatient positive screens.

METHODS

The Primary Care Posttraumatic Stress Disorder questionnaire (PC-PTSD-4) was administered at initial outpatient Burn Center visits between 5/2018-12/2018. Demographics, injury mechanism, and total body surface area (TBSA) were recorded. Those with ≥3 affirmative answers were considered positive. Patients with positive and negative screens were compared.

RESULTS

Of 307 surveys collected, 292 (median TBSA 1.5 %, IQR 0.5-4.0 %) remained for analysis after exclusions. Of those, 24.0 % screened positive. Positive screens were associated with presence of a deep component of the injury, injury mechanism, upper extremity involvement, ICU admission, and prolonged hospital length of stay.

CONCLUSIONS

Numerous factors distinguish burn injury from other traumatic mechanisms and contribute to disproportionate rates of traumatic stress disorders. Optimization of burn-oriented ASD and PTSD screening protocols can enable earlier intervention.

Posttraumatic stress disorder prevalence in medical populations: A systematic review and meta-analysis

OBJECTIVE

PTSD is increasingly recognized following medical traumas although is highly heterogeneous. It is difficult to judge which medical contexts have the most traumatic potential and where to concentrate further research and clinical attention for prevention, early detection and treatment. The objective of this study was to compare PTSD prevalence in different medical populations.

METHODS

A systematic review of the literature on PTSD following medical traumas was conducted as well as a meta-analysis with final pooled result and 95% confidence intervals presented. A meta-regression was used to investigate the impact of potential effect modifiers (PTSD severity, age, sex, timeline) on study effect size between prevalence studies.

RESULTS

From 3278 abstracts, the authors extracted 292 studies reporting prevalence. Using clinician-administered reports, the highest 24 month or longer PTSD prevalence was found for intraoperative awareness (18.5% [95% CI=5.1%-36.6%]) and the lowest was found for epilepsy (4.5% [95% CI=0.2%-12.6%]). In the overall effect of the meta-regression, only medical events or procedures emerged as significant (p = 0.006) CONCLUSION: This review provides clinicians with greater awareness of medical contexts most associated with PTSD, which may assist them in the decision to engage in more frequent, earlier screening and referral to mental health services.