Factors that prolong the 'postmortem interval until finding' (PMI-f) among community-dwelling elderly individuals in Japan

Analysis of registration data

Tomoko Ito, Nanako Tamiya, Hideto Takahashi, Kentaro Yamazaki, Hideki Yamamoto, Shoji Sakano, Masayo Kashiwagi, Satoru Miyaishi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objectives: To clarify the factors affecting 'postmortem interval until finding' (PMI-f ) among elderly unexpected death cases. Design: Cross-sectional study. Setting: All area of Yamagata prefecture in Japan. Participants: Entering subjects were 5675 elderly cases with age of ≥65 years selected from all 9002 cases of unexpected death from 2002 to 2007 in Yamagata prefecture between 2002 and 2007. Our final study subjects consisted of 3387 cases sampled with several criteria to assess the factors to prolong PMI-f. Primary outcome measures: The outcome was the postmortem interval until finding (PMI-f) as the time from death until finding the body which we defined in this study. Results: 'Living alone' showed the highest adjusted HR (3.73, 95% CI 3.37 to 4.13), also 'unnatural death' (1.50, 1.28 to 1.75), 'found at own home' (1.37, 1.22 to 1.55) and 'younger subjects' (0.99, 0.98 to 0.99). In the model including interactions with the household situation, we found 'male subjects living alone' and 'female subjects living with family' tended to be found later. Conclusions: PMI-f is an effective outcome for quantitative analyses of risk of bodies left. To prevent the elderly dead bodies left for long time, it is necessary to keep regular home-based contact with elderly individuals living alone.

Original languageEnglish
Article numbere001280
JournalBMJ Open
Volume2
Issue number5
DOIs
Publication statusPublished - 2012

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Independent Living
Japan
Cross-Sectional Studies
Outcome Assessment (Health Care)

ASJC Scopus subject areas

  • Medicine(all)

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Factors that prolong the 'postmortem interval until finding' (PMI-f) among community-dwelling elderly individuals in Japan : Analysis of registration data. / Ito, Tomoko; Tamiya, Nanako; Takahashi, Hideto; Yamazaki, Kentaro; Yamamoto, Hideki; Sakano, Shoji; Kashiwagi, Masayo; Miyaishi, Satoru.

In: BMJ Open, Vol. 2, No. 5, e001280, 2012.

Research output: Contribution to journalArticle

Ito, Tomoko ; Tamiya, Nanako ; Takahashi, Hideto ; Yamazaki, Kentaro ; Yamamoto, Hideki ; Sakano, Shoji ; Kashiwagi, Masayo ; Miyaishi, Satoru. / Factors that prolong the 'postmortem interval until finding' (PMI-f) among community-dwelling elderly individuals in Japan : Analysis of registration data. In: BMJ Open. 2012 ; Vol. 2, No. 5.
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abstract = "Objectives: To clarify the factors affecting 'postmortem interval until finding' (PMI-f ) among elderly unexpected death cases. Design: Cross-sectional study. Setting: All area of Yamagata prefecture in Japan. Participants: Entering subjects were 5675 elderly cases with age of ≥65 years selected from all 9002 cases of unexpected death from 2002 to 2007 in Yamagata prefecture between 2002 and 2007. Our final study subjects consisted of 3387 cases sampled with several criteria to assess the factors to prolong PMI-f. Primary outcome measures: The outcome was the postmortem interval until finding (PMI-f) as the time from death until finding the body which we defined in this study. Results: 'Living alone' showed the highest adjusted HR (3.73, 95{\%} CI 3.37 to 4.13), also 'unnatural death' (1.50, 1.28 to 1.75), 'found at own home' (1.37, 1.22 to 1.55) and 'younger subjects' (0.99, 0.98 to 0.99). In the model including interactions with the household situation, we found 'male subjects living alone' and 'female subjects living with family' tended to be found later. Conclusions: PMI-f is an effective outcome for quantitative analyses of risk of bodies left. To prevent the elderly dead bodies left for long time, it is necessary to keep regular home-based contact with elderly individuals living alone.",
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AU - Sakano, Shoji

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