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Low active vitamin D increases chance of adult death by 50 percent in Japan – April 2017

Association Between Serum Vitamin D and All-Cause and Cause-Specific Death in a General Japanese Population - The Hisayama Study.

Circ J. 2017 Apr 20. doi: 10.1253/circj.CJ-16-0954. [Epub ahead of print]


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Umehara K1,2, Mukai N1, Hata J1, Hirakawa Y1, Ohara T3, Yoshida D1, Kishimoto H1, Kitazono T4, Hoka S2, Kiyohara Y5, Ninomiya T1.

  • 1 Department of Epidemiology and Public Health, Graduate School of Medical Sciences, Kyushu University.
  • 2 Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University.
  • 3 Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University.
  • 4 Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University.
  • 5 Hisayama Research Institute For Lifestyle Diseases.

BACKGROUND:
Few studies have investigated the association between serum vitamin D levels and mortality in general Asian populations.

Methods and Results:
We examined the association of serum 1,25-dihydroxyvitamin D (1,25(OH)2D) levels with the risk of all-cause and cause-specific death in an average 9.5-year follow-up study of 3,292 community-dwelling Japanese subjects aged ≥40 years (2002-2012). The multivariable-adjusted hazard ratio (HR) for all-cause death increased significantly with lower serum 1,25(OH)2D levels (HR 1.54 [95% confidence interval, 1.18-2.01] for the lowest quartile, 1.31 [0.99-1.73] for the 2nd quartile, 0.94 [0.70-1.25] for the 3rd quartile, 1.00 [Ref.] for highest quartile; P for trend <0.001). A similar association was observed for cardiovascular and respiratory infection death (both P for trend <0.01), but not for cancer death or death from other causes. In the stratified analysis, the association between lower serum 1,25(OH)2D levels and the risk of respiratory infection death was stronger in subjects with an estimated glomerular filtration rate (eGFR) <60 mL/min/1.73 m2 than in those with eGFR ≥60 mL/min/1.73 m2; there was a significant heterogeneity in the association between eGFR levels (P for heterogeneity =0.04).

CONCLUSIONS:
The findings suggested that a lower serum 1,25(OH)2D level is a potential risk factor for all-cause death, especially cardiovascular and respiratory infection death, in the general Japanese population, and that lower serum 1,25(OH)2D levels greatly increase the risk of respiratory infection death in subjects with kidney dysfunction.

PMID: 28428487 DOI: 10.1253/circj.CJ-16-0954

Attached files

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7931 All cause Japan T1.jpg admin 22 Apr, 2017 14:56 162.86 Kb 200
7930 All cause Japan.jpg admin 22 Apr, 2017 14:55 24.99 Kb 230
7929 All-cause death in Japan.pdf PDF 2017 admin 22 Apr, 2017 14:55 573.31 Kb 243
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