Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4760357 | Forensic Science International | 2016 | 7 Pages |
â¢There is a huge literature on the postmortem rise of vitreous potassium.â¢Clear data on the precision of death time estimation are missing.â¢We compare 5 formulas for estimating the time since death by vitreous potassium.â¢The best results were obtained using equations with “mean” slopes.â¢In other climate zones equations with a steeper or flatter slope may be better.
The precision of death time estimation by vitreous potassium using 5 different formulas is compared on a random sample of 600 cases. Mean differences, standard deviations and 95% limits of confidence between real and extrapolated time since death were calculated. The best results were obtained using equations with “mean” slopes of about 0,17 or 0,19Â mmol/l per hour. Equations with a steeper or flatter slope reveal already great mean deviations between real and extrapolated time since death and do not allow a reliable death time estimation.
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