Roberts Lindsey G, Spencer Jessica R, Dabbs Gretchen R
Anthropology Department, Southern Illinois University, 1000 Faner Drive, Mail Code 4502, Carbondale, IL, 62901.
J Forensic Sci. 2017 Sep;62(5):1145-1150. doi: 10.1111/1556-4029.13398. Epub 2017 Feb 23.
Forensic taphonomy explores factors impacting human decomposition. This study investigated the effect of body mass on the rate and pattern of adult human decomposition. Nine males and three females aged 49-95 years ranging in mass from 73 to 159 kg who were donated to the Complex for Forensic Anthropology Research between December 2012 and September 2015 were included in this study. Kelvin accumulated degree days (KADD) were used to assess the thermal energy required for subjects to reach several total body score (TBS) thresholds: early decomposition (TBS ≥6.0), TBS ≥12.5, advanced decomposition (TBS ≥19.0), TBS ≥23.0, and skeletonization (TBS ≥27.0). Results indicate no significant correlation between body mass and KADD at any TBS threshold. Body mass accounted for up to 24.0% of variation in decomposition rate depending on stage, and minor differences in decomposition pattern were observed. Body mass likely has a minimal impact on postmortem interval estimation.
法医尸体变化学研究影响人体分解的因素。本研究调查了体重对成年人体分解速率和模式的影响。本研究纳入了2012年12月至2015年9月间捐赠给法医人类学研究中心的9名男性和3名女性，年龄在49至95岁之间，体重在73至159千克之间。用开尔文积温日（KADD）来评估受试者达到几个全身评分（TBS）阈值所需的热能：早期分解（TBS≥6.0）、TBS≥12.5、晚期分解（TBS≥19.0）、TBS≥23.0和白骨化（TBS≥27.0）。结果表明，在任何TBS阈值下，体重与KADD之间均无显著相关性。根据阶段不同，体重对分解速率变化的影响高达24.0%，且观察到分解模式存在微小差异。体重可能对死后间隔时间的估计影响极小。
