[abstract] A CASE-CONTROL STUDY OF DECOMPRESSION SICKNESS (DCS) AND ARTERIAL GAS EMBOLISM (AGE)

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[abstract] A CASE-CONTROL STUDY OF DECOMPRESSION SICKNESS (DCS) AND ARTERIAL GAS EMBOLISM (AGE)

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Title: [abstract] A CASE-CONTROL STUDY OF DECOMPRESSION SICKNESS (DCS) AND ARTERIAL GAS EMBOLISM (AGE)
Author: DeNoble, PJ; Vann, RD; Pollock, NW; Uguccioni, DM; Freiberger, JJ; Pieper, CF
Abstract: BACKGROUND: We hypothesized that DCS and AGE in recreational diving are associated with certain demographic, environmental, and dive style factors. We tested this hypothesis in a case-control study comparing injured and non-injured divers. MATERIALS AND METHODS: Injured divers were from the DAN Injury Database and Project Dive Exploration (PDE) for 1998-2002 (63 AGE; 351 DCS). Controls were 3,819 uninjured PDE participants. Potential risk factors tested by logistic regression were: age, gender, body mass index (BMI), smoking, asthma, diabetes, cardiovascular disease (CVD), previous decompression illness (DCI), years since certification, dives in last year, number of diving days, number of dives in series, last dive depth, nitrox use, and drysuit use. Odds Ratios (OR) and 95percent Confidence Intervals (CI) are shown for risk factors significantly associated with AGE or DCS (p less than 0.05). RESULTS: AGE DCS, OR 95percent CI OR 95percent CI, Last dive depth (50 fsw ) 2.79 1.98, 3.93 2.26 2.01, 2.53, Previous DCI ~ ~ 1.99 1.35, 2.94, Days diving (5 days ) ~ ~ 1.53 1.14, 2.06, Male gender 2.32 1.21, 4.43 1.19 1.01, 1.4, Dives in past year (10 dives ) 0.93 0.88, 0.98 0.95 0.94, 0.96, Age (10 years ) ~ ~ 0.92 0.86, 0.99, Years since certification (10 years ) 0.45 0.28, 0.72 0.89 0.80, 0.98, Drysuit use ~ ~ 0.72 0.59, 0.89, Number of dives in series (5 dives ) 0.30 0.20, 0.45 0.56 0.50, 0.64, Nitrox use ~ ~ 0.48 0.39, 0.61 interval increment, CONCLUSIONS: No significant associations with DCS or AGE were found for asthma, diabetes, CVD, smoking, or BMI. Increased depth, previous DCI, days diving, and being male were associated with higher AGE or DCS risks (OR greater than 1). Nitrox and drysuit use, increased diving in the past year, increasing age, and years since certification were associated with lower risks (OR less than 1), possibly as markers of more extensive training and experience.
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: http://archive.rubicon-foundation.org/1780
Date: 2005

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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