Publications by authors named "Akira Okayama"

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Factors Affecting Body Weight/Waist Circumference Changes after Specific Health Guidance for Obese People with CVD Risk Factors in Japan.
Nagako Okuda, Koshi Nakamura, Makoto Watanabe, Kei Kamide, Katsushi Yoshita, Akira Okayama

J Atheroscler Thromb· December 2025

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Intervention Using Low-Na/K Seasonings and Dairy at Japanese Company Cafeterias as a Practical Approach to Decrease Dietary Na/K and Prevent Hypertension.
Nagako Okuda, Aya Higashiyama, Kozo Tanno, Yuki Yonekura, Makoto Miura, Akira Okayama

Nutrients· December 2025

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Significance of Serum Cholinesterase as a Prognostic Marker in Patients with Non-dialysis-dependent Chronic Kidney Disease.
Kosei Okamoto, Fumitaka Tanaka, Seiya Noda, Motoyuki Nakamura, Kozo Tanno, Akira Okayama

Intern Med· November 2025

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Cross-Sectional Association between Sedentary Behavior and Physical Inactivity with Cardiometabolic Risk Factors among Japanese: The NIPPON DATA2010.
Mizuki Ohashi, Naoko Miyagawa, Masahiko Yanagita, Nagako Okuda, Akira Fujiyoshi, Akira Okayama

J Atheroscler Thromb· October 2025

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Incidence and Location of Osteochondral Lesions of the Talus Associated With Ankle Fractures Evaluated by Magnetic Resonance Imaging.
Futoshi Morio, Shota Morimoto, Shigeo Fukunishi, Yoshinobu Masumoto, Masahiro Komeda, Akira Okayama

Cureus· October 2025

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Comprehensive Assessment of the Impact of Blood Pressure, Body Mass Index, Smoking, and Diabetes on Healthy Life Expectancy in Japan: NIPPON DATA90.
Rumi Tsukinoki, Yoshitaka Murakami, Takehito Hayakawa, Aya Kadota, Akiko Harada, Akira Okayama

J Epidemiol· August 2025

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Sex differences in the relationship between obesity and hypertension in Japan: a large population-based cross-sectional study.
Tomomi Nagahata, Nagako Okuda, Kozo Tanno, Yuki Yonekura, Aya Higashiyama, Akira Okayama

Hypertens Res· June 2025

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Associations between mental health and lifestyle changes during the COVID-19 pandemic in a general Japanese population: NIPPON DATA2010.
Naoki Aono, Aya Higashiyama, Harumitsu Suzuki, Akira Fujiyoshi, Makiko Abe, Akira Okayama

Environ Health Prev Med· April 2025

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Association between employment status and long-term changes in psychological stress across the COVID-19 pandemic period in Japan: NIPPON DATA2010.
Makiko Abe, Hisatomi Arima, Nagako Okuda, Hirokazu Taniguchi, Atsushi Satoh, Akira Okayama

J Occup Health· January 2025

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Body Mass Index and Weight Change as Predictors of Hypertension Development: A Sex-Specific Analysis.
Koki Kosami, Masanari Kuwabara, Akira Okayama, Ryusuke Ae

Nutrients· December 2024

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Association between alcohol intake and death from cardiovascular diseases and its subtypes stratified by dyslipidemia in Japanese men: 20-years follow-up of NIPPON DATA90.
Takumi Hirata, Aya Hirata, Sayuki Torii, Naoyuki Takashima, Aya Kadota, Akira Okayama

Environ Health Prev Med· November 2024

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Risk Factors for Heart Failure and Coronary Artery Disease Mortality Based on the National Vital Statistics During a 25-Year Follow-up in Japan　- NIPPON DATA90.
Kota Kubo, Aya Hirata, Aya Kadota, Akiko Harada, Yasuyuki Nakamura, Akira Okayama

Circ J· August 2024

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Sex- and Age-Specific Associations Between Metabolic Syndrome and Future Functional Disability in the Japanese Older Population.
Naomi Takahashi, Megumi Tsubota-Utsugi, Shuko Takahashi, Yuki Yonekura, Masaki Ohsawa, Akira Okayama

Inquiry· August 2024

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Smoking is Associated With Impaired Long-term Quality of Life in Elderly People: A 22-year Cohort Study in NIPPON-DATA 90.
Yiwei Liu, Tomonori Okamura, Aya Hirata, Yasunori Sato, Takehito Hayakawa, Akira Okayama

J Epidemiol· June 2024

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Na and K Intake from Lunches Served in a Japanese Company Cafeteria and the Estimated Improvement in the Dietary Na/K Ratio Using Low-Na/K Seasonings and Dairy to Prevent Hypertension.
Nagako Okuda, Aya Higashiyama, Kozo Tanno, Yuki Yonekura, Makoto Miura, Akira Okayama

Nutrients· May 2024

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Relationship Between Hemoglobin Concentration and Cardiovascular Disease Mortality in a 25-Year Follow-up Study of a Japanese General Population　- NIPPON DATA90.
Megumi Kawashima, Takashi Hisamatsu, Akiko Harada, Aya Kadota, Keiko Kondo, Akira Okayama

Circ J· April 2024

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Association of Pro-Inflammatory Diet with Long-Term Risk of All-Cause and Cardiovascular Disease Mortality: NIPPON DATA80.
Gantsetseg Ganbaatar, Yukiko Okami, Aya Kadota, Namuun Ganbaatar, Yuichiro Yano, Akira Okayama

J Atheroscler Thromb· March 2024

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High blood pressure and colorectal cancer mortality in a 29-year follow-up of the Japanese general population: NIPPON DATA80.
Takashi Hisamatsu, Aya Kadota, Takehito Hayakawa, Yoshikuni Kita, Akiko Harada, Akira Okayama

Hypertens Res· January 2024

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Rapid weight change as a predictor of disability among community-dwelling Japanese older adults.
Megumi Tsubota-Utsugi, Kozo Tanno, Naomi Takahashi, Toshiyuki Onoda, Yuki Yonekura, Akira Okayama

Geriatr Gerontol Int· November 2023

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Co-existence of malnutrition and sarcopenia and its related factors in a long-term nursing care facility: A cross-sectional study.
Noriko Bando, Naomi Nakayama, Kaori Kashiwa, Rena Horike, Asaka Fujimoto, Akira Okayama

Heliyon· November 2023

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Circulating plasma phospholipid fatty acid levels as a biomarker of habitual dietary fat intake: The INTERMAP/INTERLIPID Study.
Naoko Miyagawa, Akira Sekikawa, Katsuyuki Miura, Rhobert W Evans, Nagako Okuda, Akira Okayama

J Clin Lipidol· October 2023

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Dietary Factors, Dietary Patterns, and Cardiovascular Disease Risk in Representative Japanese Cohorts: NIPPON DATA80/90.
Keiko Kondo, Katsuyuki Miura, Tomonori Okamura, Akira Okayama, Hirotsugu Ueshima

J Atheroscler Thromb· March 2023

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Marital status, household size, and lifestyle changes during the first COVID-19 pandemic: NIPPON DATA2010.
Makiko Abe, Hisatomi Arima, Atsushi Satoh, Nagako Okuda, Hirokazu Taniguchi, Akira Okayama

PLoS One· March 2023

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Investigation of the urinary sodium-to-potassium ratio target level based on the recommended dietary intake goals for the Japanese population: The INTERMAP Japan.
Ebtehal Salman, Aya Kadota, Yukiko Okami, Keiko Kondo, Katsushi Yoshita, Akira Okayama

Hypertens Res· December 2022

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Body weight and lifestyle changes under the COVID-19 pandemic in Japan: a cross-sectional study from NIPPON DATA2010.
Hirokazu Taniguchi, Nagako Okuda, Hisatomi Arima, Atsushi Satoh, Makiko Abe, Akira Okayama

BMJ Open· November 2022

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