In the current sample, Cronbach’s alpha was 0.85. Peritraumatic dissociation scores were non-parametrically distributed and skewed toward the minimum score (median=1.5, inter-quartile range 1.2 – 2.1). Recovery from symptoms of acute stress Duration of reactions to critical incident We measured five components of the Acute Stress www.selleckchem.com/products/Abiraterone.html reaction which commonly occurs after extremely stressful incidents by self-report. Inhibitors,research,lifescience,medical The components measured were physical reactions (“like sweating, shaking, and pounding heart ”), distressing feelings (“like fear, anger, horror, guilt,
shame, worry or sadness ”), disturbed sleep (“sleep disrupted by the incident ”), irritability (“irritable, mean or snappish ”) and social withdrawal (“if you withdrew or pulled back from other people ”) [10,15]. For each Inhibitors,research,lifescience,medical of the five components we asked, “If you had [this reaction], how long did it take before it/they were gone [or settled down, or got back to normal]? Participants chose one of seven Inhibitors,research,lifescience,medical options: (i) did not have this reaction; or returned to normal (ii) soon after the call (a few hours), (iii) by the next night, (iv) by the next week, (v) by the next month, (vi) within a few months, or (vii) still not normal. Current symptoms Current symptoms were measured separately for two time periods, first for Inhibitors,research,lifescience,medical the most recent block
of shifts on-duty, and second for the most recent block of shifts off-duty. This was because the participants in pilot testing informed us that the two time periods were experienced differently, with on-duty periods evoking more symptoms. We report here on the responses during the on-duty periods because they were the most stressful and therefore the most salient. Depressive symptoms The Center for Epidemiologic Inhibitors,research,lifescience,medical Studies Depression Scale, short form (CES-D-10) is a 10-item scale in which responses rate the frequency of depressive phenomena over the most recent block of shifts worked on a 4 point scale from 0 (rarely or none of the time,
less than one day) to 3 (all of the time, 5 Brefeldin_A – 7 days). CES-D-10 scores show concurrent validity with measures of positive affect (r=-.63) and poor health status (r=.37). The 10-item scale is highly correlated with the full 20-item scale, which has been validated these against clinical diagnoses of depression [16]. The time period “your current or most recent block of shifts on duty ” was used rather than “over the last week ” because EMT/paramedics interviewed in the earlier phase of this research reported that perceived psychological distress was worse during blocks of shifts on duty than during blocks off duty. Cronbach’s alpha was 0.77. In the current sample, scores were approximately normally distributed (mean 7.4±4.6).
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