[abstract] THE INCIDENCE OF DECOMPRESSION ILLNESS IN RECREATIONAL DIVING IS NOT HOMOGENEOUS

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[abstract] THE INCIDENCE OF DECOMPRESSION ILLNESS IN RECREATIONAL DIVING IS NOT HOMOGENEOUS

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Title: [abstract] THE INCIDENCE OF DECOMPRESSION ILLNESS IN RECREATIONAL DIVING IS NOT HOMOGENEOUS
Author: DeNoble, PJ; Uguccioni, DM; Forbes, R; Vann, RD
Abstract: BACKGROUND: DCI incidence in recreational diving is estimated at 1-8 DCI/10,000 dives. We tested the hypothesis that the incidence differs among subpopulations in Project Dive Exploration (PDE) data from 2001. METHODS: PDE used computers to record dive profiles of volunteers who provided demographic, health, and diving information including symptoms within 48 hours after diving. Reports were crosschecked with recompression chamber records. Data were compared for dive guides from Caribbean resorts and for recreational divers on liveaboards, day boats, and at Scapa Flow, UK (cold-water wreck dives). RESULTS: DCI incidence was computed per 100 divers and per 10,000 dives (Table). Caribbean dive guides had the highest incidence per diver while Scapa Flow divers had the highest incidence per dive. There was no DCI in dive tourists or guides on liveaboard dive boats. Diving intensity (Dives/Diver) was lowest for day boat divers and highest for dive guides. Mean maximum depth was greatest for Scapa Flow divers and least for Caribbean guides. Liveaboard Day Boat Scapa Flow Carib Guides DCI 0 3 8 5 Divers 290 705 233 48 Dives 3,928 3,796 2,413 5,248 Dives/Diver 13.5 5.4 10.4 109.3 Series/Diver 1.4 2.1 1.0 12.0 DCI/100 Divers 0 0.3 3.9 10.4 DCI/10,000 Dives 0 5.3 37.3 9.5 Mean Max Depth 70.1 fsw 66.1 88.5 64.6 different from Liveaboard at p less than 0.0015. CONCLUSION: This diver sample was not homogenous. Depth appeared important for Scapa Flow divers while diving intensity appeared important for Caribbean guides. The high incidence per diver for guides was concerning as this group is the backbone of the recreational diving industry. Accordingly, we will conduct a two-year cohort study of 60 dive guides from both liveaboards and Caribbean shore-based operations using PDE methodology.
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: http://archive.rubicon-foundation.org/1283
Date: 2003

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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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