Relative decompression risk of dry and wet chamber air dives.

摘要: The difference in risk of decompression sickness (DCS) between dry chamber subjects and wet, working divers is unknown a direct test the would be large expensive. We used probabilistic models maximum likelihood estimation to examine 797 (and generally resting comfortable) 244 wet cold) dives from Defence Civil Institute Environmental Medicine, supplemented with 483 (working, Navy Experimental Diving Unit. Several analyses considered whether data were distinguishable using several models, obtained one set exposure conditions correctly predict occurrence DCS other condition, single wet-dry parameter was different zero. Although two may not produce identical risks, immersion appears change relative by less than 30% certainly involves doubling risk. Uncontrolled differences exercise temperature stresses unavoidably complicate interpretation. methods are presented extrapolate results dry-test trials expected at-sea performance.