K
Katsuya Iijima
Researcher at University of Tokyo
Publications - 179
Citations - 8504
Katsuya Iijima is an academic researcher from University of Tokyo. The author has contributed to research in topics: Medicine & Sarcopenia. The author has an hindex of 38, co-authored 149 publications receiving 6003 citations.
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Journal ArticleDOI
Household Income Relationship With Health Services Utilization and Healthcare Expenditures in People Aged 75 Years or Older in Japan: A Population-Based Study Using Medical and Long-term Care Insurance Claims Data
Shota Hamada,Hideto Takahashi,Nobuo Sakata,Boyoung Jeon,Takahiro Mori,Katsuya Iijima,Satoru Yoshie,Satoru Yoshie,Satoru Yoshie,Tatsuro Ishizaki,Nanako Tamiya +10 more
TL;DR: Older people with lower income had fewer consultations with physicians but an increased use of inpatient services, suggesting that the income categorization used in this study may be an appropriate proxy of socioeconomic status.
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Lower physical activity is a strong predictor of cardiovascular events in elderly patients with type 2 diabetes mellitus beyond traditional risk factors: The Japanese elderly diabetes intervention trial
Katsuya Iijima,Satoshi Iimuro,Tomohiro Shinozaki,Yasuo Ohashi,Takashi Sakurai,Hiroyuki Umegaki,Atsushi Araki,Yasuyoshi Ouchi,Hideki Ito +8 more
TL;DR: This study investigated the correlation between physical activity and CV events in Japanese elderly patients with type’2 diabetes mellitus (T2DM) and found a decline in physical activity is associated with lifestyle‐related diseases including cardiovascular (CV) events.
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Changes in Cognitive Functions in the Elderly Living in Temporary Housing after the Great East Japan Earthquake.
Aiko Ishiki,Shoji Okinaga,Naoki Tomita,Reiko Kawahara,Ichiro Tsuji,Ryoichi Nagatomi,Yasuyuki Taki,Takashi Takahashi,Masafumi Kuzuya,Shigeto Morimoto,Katsuya Iijima,Takeyoshi Koseki,Hiroyuki Arai,Katsutoshi Furukawa +13 more
TL;DR: It is concluded that the elderly people living in temporary apartments were at a high risk of cognitive impairment and “out-of-home activities” and ”walking” could possibly maintain the stability of cognitive functions.
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Association of Plasma Dehydroepiandrosterone-Sulfate Levels with Endothelial Function in Postmenopausal Women with Coronary Risk Factors
Masahiro Akishita,Masayoshi Hashimoto,Yumiko Ohike,Sumito Ogawa,Katsuya Iijima,Masato Eto,Yasuyoshi Ouchi +6 more
TL;DR: Low plasma DHEA-S levels were weakly but significantly related to endothelial function in postmenopausal women independent of other coronary risk factors, suggesting a protective effect of DHEa on the endothelium.
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Lower physical activity, but not excessive calorie intake, is associated with metabolic syndrome in elderly with type 2 diabetes mellitus: the Japanese Elderly Diabetes Intervention Trial.
Katsuya Iijima,Satoshi Iimuro,Yasuo Ohashi,Takashi Sakurai,Hiroyuki Umegaki,Atsushi Araki,Yukio Yoshimura,Yasuyoshi Ouchi,Hideki Ito +8 more
TL;DR: The correlation between physical activity and clinical parameters in the presence and absence of MetS in Japanese elderly subjects with type 2 diabetes mellitus (T2DM) is investigated.