Bohnker B, Rovig G, Page J, Philippi A, Butler F, Sack D
Navy Environmental Health Center, 620 John Paul Jones Circle, Suite 1100, Portsmouth, VA 23708, USA.
Undersea Hyperb Med. 2003 Summer;30(2):155-62.
The study examined hearing threshold for Navy special operations personnel (SEALS (Sea-Air-Land): N = 212; divers: N = 165). Hearing threshold values were obtained and age adjusted using Mantel Haenzel Weighted odds ratio (MHOR) to compare with information in the Navy Hearing Conservation Database. For any threshold above 20 dB in the 500 through 3000 Hz range, the SEALS were significantly less at risk (MHOR = 0.54, p = 0.022) in the right ear, while the divers were significantly less at risk in the left ear (MHOR = 0.61, p = 0.047). For hearing thresholds at 4000 Hz above 40 dB, SEALS were significantly more at risk in both left ear (MHOR = 2.03, p = 0.0043) and right ear (MHOR = 2.58, p = 0.000089), while divers were not different. Risk assessment based on these findings must consider the multiple exposure hazards and critical mission profiles for the Navy special operations personnel. Requirements for mission accomplishment in hazardous environments may deem these risks acceptable.
该研究检测了海军特种作战人员（海豹突击队：N = 212；潜水员：N = 165）的听力阈值。获取听力阈值并使用Mantel Haenzel加权比值比（MHOR）进行年龄调整，以与海军听力保护数据库中的信息进行比较。在500至3000赫兹范围内，对于任何高于20分贝的阈值，海豹突击队右耳的风险显著较低（MHOR = 0.54，p = 0.022），而潜水员左耳的风险显著较低（MHOR = 0.61，p = 0.047）。对于4000赫兹处高于40分贝的听力阈值，海豹突击队左耳（MHOR = 2.03，p = 0.0043）和右耳（MHOR = 2.58，p = 0.000089）的风险均显著更高，而潜水员则无差异。基于这些发现进行风险评估时，必须考虑海军特种作战人员面临的多种暴露危害和关键任务概况。在危险环境中完成任务的要求可能会认为这些风险是可接受的。
