Persistent prevalence of polycythemia among evacuees 4 years after the Great East Japan Earthquake: A follow-up study

Preventive Medicine Reports

Hitoshi Suzuki¹  Tetsuya Ohira²  Hironori Nakano²  Kotaro Ozasa³  Atsushi Takahashi⁴  Yoshimitsu Hayashi⁵  Hiroaki Satoh⁵  Yoshihiro Sugiura⁶  Hiroaki Shishido⁷  Yukihiko Kawasaki⁸  Mitsuaki Hosoya⁸  Gen Kobashi⁹  Seiji Yasumura^1,10  Akira Ohtsuru^1,11  Akira Sakai^1,12  Hideto Takahashi^1,13  Hitoshi Ohto^1,14  Shigeatsu Hashimoto^1,14  Masafumi Abe^1,14 

[1] Dept. of Cardiology and Hematology, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan;Dept. of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Nephrology, Hypertension, Diabetology, and Endocrinology, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Neurology, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Public Health, Dokkyo Medical University School of Medicine, Shimotsuga, Japan;Dept. of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Radiation Health Management, Fukushima Medical University School of Medicine, Fukushima, Japan;Dept. of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan;Information Management and Statistics Office, Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University School of Medicine, Fukushima, Japan;Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University School of Medicine, Fukushima, Japan;

关键词: The Great East Japan Earthquake;    The Fukushima Health Management Survey;    Evacuee;    Polycythemia;    Lifestyle-related disease;   

DOI  :  10.1016/j.pmedr.2017.01.003

来源: DOAJ

【 摘 要 】

We previously reported that the lifestyle of evacuees significantly increased the prevalence of polycythemia compared with non-evacuees at an average of 1.6 years (2011–2012) from the previous annual health checkup before the Great East Japan Earthquake (GEJE). Here we analyzed how the prolonged evacuation affected the prevalence of polycythemia an average of 2.5 years (2013–2014) after the previous data. Subjects were individuals aged 40–90 years living in the vicinity of the Fukushima Daiichi Nuclear Power Plant in Fukushima Prefecture who had attended the annual health checkups since 2008. The prevalence of polycythemia and changes in its defining factors of red blood cell count (RBC), hemoglobin (Hb) level, hematocrit (Ht) level were compared between before and after the GEJE in 7713 individuals (3349 men and 4364 women) receiving follow-up examinations both 2011–2012 and 2013–2014. RBC, Hb levels and Ht levels in 2011–2012 were higher among evacuees than non-evacuees in both men and women. However, all levels in 2013–2014 were on the decline from those in 2011–2012. On the other hand, among evacuees, Hb and Ht levels continued to be higher than before the GEJE in both men and women evacuees. The prevalence of polycythemia, which was diagnosed if one of the defining factors was beyond the standard value, was significantly higher among evacuees than non-evacuees regardless of the presence or the absence of overweight/obesity, smoking, and hypertension. Therefore, prolonged evacuation is a cause of polycythemia even 3 to 4 years after the GEJE and regular health management of evacuees is important.

【 授权许可】

Unknown