1.WALKING 10,000 STEPS PER DAY IS EFFECTIVE TO IMPROVE CORONARY RISK FACTORS AMONG JAPANESES MIDDLE-AGED MEN
YOSHIHARU FUJIEDA ; KATSUYUKI MIURA ; HIDEAKI NAKAGAWA
Japanese Journal of Physical Fitness and Sports Medicine 2006;55(Supplement):S37-S42
The purpose of this study is to investigate the effects of walking 10,000 steps per day on coronary risks including insulin resistance in Japanese. Twenty-one white-collar male workers (46.1±5.3 year-old) perform preventive lifestyle prescription. After 6 month, they showed improvements in BMI (p<0.05), VLDL (p<0.05), HDL cholesterol (p<0.001), and plasma insulin at 2 hr. post 75 g OGTT (p〈0.05). The participants increased their walk steps from 8,239±4,302 to 10,083±4,115 steps/day (p=0.09), and the increments of steps correlated with those of body mass index (r=−0.58, p<0.05), VLDL (r=−0.57, p<0.05), tryglycerides (r=−0.54, p<0.05), and blood glucose at 1 hr. post OGTT (r=−0.50, p<0.05) respectively. Especially 8 subjects with improved HOMA-R demonstrated more favorable modifications, and their gained 3,900 steps/day can meet the ACSM recommendation of physical activity. These outcomes could support a scientific aspect of anecdotal belief that walking 10,000 steps per day is effective to maintain one's optimum health.
2.Increase in Knowledge of Ignorance During Problem-Based Learning Sessions: Possible Improvement of Metacognition
Noriko AINODA ; Hirotaka ONISHI ; Yoshimichi UEDA ; Ariyuki HORI ; Katsuyuki MIURA ; Katsuhito MIYAZAWA ; Koji SUZUKI
Medical Education 2007;38(1):11-17
To seek longitudinal changes in metacognitive processes through problem-based learning (PBL), we analysed the contents of all comments written reflectively by the third-year students after they finished discussions in each PBL session. After dividing their comments into meaningful units, we focused on two major thematic categories and five sub-categories to be analysed.
1) The number of units decreased significantly (chi-square: p=0.02).
2) Only the proportion of units categorised as “comprehension” in “individual learning” showed significant increase (Bonferroni: p<0.001).
3) Comments in this category stated that “I don't understand so-and-so.”
4) The increase of “comprehension” as they experienced more PBL suggested that students' knowledge of ignorance as metacognition was fostered through sessions in medical PBL.
3.Introducing Problem-Based Learning Tutorials into a Traditional Curriculum.
Ariyuki HORI ; Yoshimichi UEDA ; Noriko AINODA ; Shinobu MATSUI ; Katsuyuki MIURA ; Katsuhito MIYAZAWA ; Toru NAGANO ; Mikihiro TSUTSUMI ; Susumu SUGAI ; Koji SUZUKI ; Noboru TAKEKOSHI
Medical Education 2003;34(6):403-412
Problem-based learning (PBL) tutorials were introduced at our university in April 2001. Because a complete PBLbased curriculum could not be adopted, a transitional curriculum incorporating 3-hour PBL tutorial sessions into the traditional curriculum was introduced. More than 80% of students agreed that PBL is an effective way of learning problem solving at the bedside. Twenty percent to 40% of teachers felt that students who took PBL were more motivated for bedside learning and self-directed learning and had better at presentation than were students who did not take PBL. Because of 80% of the curriculum comprised didactic lectures, most students considered PBL tutorials a type of lecture. For this reason, motivating students to learn additional material originating from PBL tutorials was difficult. Although the combination of a traditional curriculum and PBL tutorials may appear to be a new curriculum, this type of PBL has limited value as a method for studying problem solving.
4.Salt reduction in a population for the prevention of hypertension.
Hideaki NAKAGAWA ; Katsuyuki MIURA
Environmental Health and Preventive Medicine 2004;9(4):123-129
Hypertension is one of the major risk factors for cardiovascular disease, the prevention of which is acknowledged to be critically important. Human beings are the only animal species which consume large quantities of salt, and their consumption has increased with the advancement of civilization. Many observational and interventional epidemiologic studies have demonstrated that a high intake of salt results in elevation of blood pressure, and that a salt-reduced diet induces blood pressure reduction in patients with hypertension as well as in individuals with normal blood pressure. Reduced salt intake, blood pressure reduction, and a remarkable decrease in mortality due to stroke in Japan are important examples of this effect. A decrease in the mean blood pressure in an entire population can contribute significantly to decreased incidence of cardiovascular diseases. A population-based strategy for preventing hypertension, including a salt-reduced diet, is therefore desirable. Proposed measures include public health education by the mass media, reduced salt content in processed foods, salt reduction in foods served by schools or organizations and at restaurants, and labeling of salt content. Further studies are needed of population-wide salt reduction methods, and the effectiveness of such methods.
5.Long-Term Survival after Stroke in 1.4 Million Japanese Population: Shiga Stroke and Heart Attack Registry
Naoyuki TAKASHIMA ; Hisatomi ARIMA ; Yoshikuni KITA ; Takako FUJII ; Sachiko TANAKA-MIZUNO ; Satoshi SHITARA ; Akihiro KITAMURA ; Yoshihisa SUGIMOTO ; Makoto URUSHITANI ; Katsuyuki MIURA ; Kazuhiko NOZAKI
Journal of Stroke 2020;22(3):336-344
Background:
and Purpose Although numerous measures for stroke exist, stroke remains one of the leading causes of death in Japan. In this study, we aimed to determine the long-term survival rate after first-ever stroke using data from a large-scale population-based stroke registry study in Japan.
Methods:
Part of the Shiga Stroke and Heart Attack Registry, the Shiga Stroke Registry is an ongoing population-based registry study of stroke, which covers approximately 1.4 million residents of Shiga Prefecture in Japan. A total 1,880 patients with non-fatal first-ever stroke (among 29-day survivors after stroke onset) registered in 2011 were followed up until December 2016. Five-year cumulative survival rates were estimated using the Kaplan-Meier method, according to subtype of the index stroke. Cox proportional hazards models were used to assess predictors of subsequent all-cause death.
Results:
During an average 4.3-year follow-up period, 677 patients died. The 5-year cumulative survival rate after non-fatal first-ever stroke was 65.9%. Heterogeneity was present in 5-year cumulative survival according to stroke subtype: lacunar infarction, 75.1%; large-artery infarction, 61.5%; cardioembolic infarction, 44.9%; intracerebral hemorrhage, 69.1%; and subarachnoid hemorrhage, 77.9%. Age, male sex, Japan Coma Scale score on admission, and modified Rankin Scale score before stroke onset were associated with increased mortality during the chronic phase of ischemic and hemorrhagic stroke.
Conclusions
In this study conducted in a real-world setting of Japan, the 5-year survival rate after non-fatal first-ever stroke remained low, particularly among patients with cardioembolic infarction and large-artery infarction in the present population-based stroke registry.
6.Population-Based Incidence Rates of Subarachnoid Hemorrhage in Japan: The Shiga Stroke and Heart Attack Registry
Satoshi SHITARA ; Sachiko TANAKA-MIZUNO ; Naoyuki TAKASHIMA ; Takako FUJII ; Hisatomi ARIMA ; Yoshikuni KITA ; Atsushi TSUJI ; Akihiro KITAMURA ; Makoto URUSHITANI ; Katsuyuki MIURA ; Kazuhiko NOZAKI ;
Journal of Stroke 2022;24(2):292-295
7.A validation study on food composition tables for the international cooperative INTERMAP study in Japan.
Katsushi YOSHITA ; Katsuyuki MIURA ; Akira OKAYAMA ; Nagako OKUDA ; Sally F SCHAKEL ; Barbara DENNIS ; Shigeyuki SAITOH ; Kiyomi SAKATA ; Hideaki NAKAGAWA ; Jeremiah STAMLER ; Hirotsugu UESHIMA
Environmental Health and Preventive Medicine 2005;10(3):150-156
OBJECTIVEThe INTERMAP Study is an international cooperative study on the relationship between macro- and micro-nutrient intakes and blood pressure. The present study-ancillary to INTERMAP-is to evaluate validity of the INTERMAP Tables of Food Composition in Japan (ITJ) formulated by modifying the Standard Tables of Food Composition in Japan (STJ), including factoring in changes in weight and nutrient composition of individual foods due to cooking.
METHODSWith chemical analytical values of 96 meals prepared in two university hospitals in Japan as the "gold standard", validity of calculated values based on the ITJ was examined for six major components (energy, protein, lipid, carbohydrate, sodium, potassium) by comparison of mean values, correlation, and linear regression analysis.
RESULTSAlthough both the ITJ-based and STJ-based calculated values for all six components were significantly higher than the analytical values, differences from the analytical values were generally less marked for the ITJ-based values than for the STJ-based values. The STJ-based values were significantly higher than the ITJ-based values for protein and potassium. Analytical values showed slightly stronger correlations with the ITJ-based calculated values (r=0.876 for total energy, r=0.789 for lipid, r=0.832 for potassium) than with the STJ-based calculated values, except for carbohydrates.
CONCLUSIONSThe ITJ was considered to have greater validity than the STJ. To obtain more accaurate data in nutritional surveys, food composition tables in which changes in nutrient compositions due to cooking methods are taken into consideration should be used.
8.The evaluation of materials to provide health-related information as a population strategy in the worksite: The high-risk and population strategy for occupational health promotion (HIPOP-OHP) study.
Katsushi YOSHITA ; Taichiro TANAKA ; Yuriko KIKUCHI ; Toru TAKEBAYASHI ; Nagako CHIBA ; Junko TAMAKI ; Katsuyuki MIURA ; Takashi KADOWAKI ; Tomonori OKAMURA ; Hirotsugu UESHIMA ; null
Environmental Health and Preventive Medicine 2004;9(4):144-151
OBJECTIVETo examine the effectiveness of newly developed materials for providing health-related information to the worksite population, we compared the amount of attention that employees paid to the materials.
METHODSStudy subjects were 2,361 employees in six companies participating in an intervention program between 2002 and 2003. Three kinds of media were used as tools for providing health information: [1] Point Of Purchase advertising menus (POP menus) were placed on all tables in company restaurants, [2] posters were put on walls and [3] leaflets were distributed at health-related events. One year or more after the introduction of these media, we compared the amount of attention paid to each type of medium.
RESULTSAmongst the three types of media, the POP menu drew the most attention, although results were not consistent in all gender and company groups. Every piece of information provided by the POP menus was "always" or "almost always" read by 41% of the men and 51% of the women surveyed. The corresponding rate for posters was 30% in men and 32% in women. For leaflets, only 16% of men and 22% of women read almost all of the leaflets. More attention was paid to the POP menu when the sample was women, older, and ate at the company restaurant at least three times a week.
CONCLUSIONThe POP menu may provide health-related information to a broader range of people than posters and leaflets, therefore, it is an effective material for population strategy.
9.Socioeconomic and lifestyle factors associated with depressive tendencies in general Japanese men and women: NIPPON DATA2010.
Harumitsu SUZUKI ; Aya KADOTA ; Nagako OKUDA ; Takehito HAYAKAWA ; Nobuo NISHI ; Yasuyuki NAKAMURA ; Hisatomi ARIMA ; Naoko MIYAGAWA ; Atsushi SATOH ; Naomi MIYAMATSU ; Masahiko YANAGITA ; Hiroshi YATSUYA ; Zentaro YAMAGATA ; Takayoshi OHKUBO ; Tomonori OKAMURA ; Hirotsugu UESHIMA ; Akira OKAYAMA ; Katsuyuki MIURA ; NIPPON DATA2010 Research Group
Environmental Health and Preventive Medicine 2019;24(1):37-37
BACKGROUND:
The gender-specific characteristics of individuals at an increased risk of developing depression currently remain unclear despite a higher prevalence of depression in women than in men. This study clarified socioeconomic and lifestyle factors associated with an increased risk of subclinical depression in general Japanese men and women.
METHODS:
Study participants were residents not receiving psychiatric treatments in 300 sites throughout Japan in 2010 (1152 men, 1529 women). Multivariable-adjusted odds ratios (OR) and 95% confidence intervals (95%CIs) for socioeconomic factors and lifestyle factors were calculated using a logistic regression analysis.
RESULTS:
Risk of depressive tendencies was significantly higher in men who were single and living alone (OR, 3.27; 95% CI, 1.56-6.88) than those married. The risk was significantly lower in women who were not working and aged ≥ 60 years (OR, 0.39; 95% CI, 0.22-0.68) and higher in men who were not working and aged < 60 years (OR, 3.57; 95%CI, 1.31-9.72) compared with those who were working. Current smoking was also associated with a significantly increased risk of depressive tendencies in women (OR, 2.96; 95% CI, 1.68-5.22) but not in men.
CONCLUSIONS
Socioeconomic and lifestyle factors were associated with an increased risk of depressive tendencies in general Japanese. Related factors were different by sex.
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10.Efficacy and safety of glecaprevir and pibrentasvir combination therapy in old-aged patients with chronic hepatitis C virus infection
Shunji WATANABE ; Naoki MORIMOTO ; Kouichi MIURA ; Toshimitsu MUROHISA ; Toshiyuki TAHARA ; Takashi SATO ; Shigeo TANO ; Yukimura FUKAYA ; Hidekazu KURATA ; Yukishige OKAMURA ; Norikatsu NUMAO ; Keita UEHARA ; Kozue MURAYAMA ; Katsuyuki NAKAZAWA ; Hitoshi SUGAYA ; Hiroaki YOSHIZUMI ; Makoto IIJIMA ; Mamiko TSUKUI ; Takuya HIROSAWA ; Yoshinari TAKAOKA ; Hiroaki NOMOTO ; Hiroshi MAEDA ; Rie GOKA ; Norio ISODA ; Hironori YAMAMOTO
Journal of Rural Medicine 2020;15(4):139-145
Objective: Combination therapy with glecaprevir and pibrentasvir (G/P) has been shown to provide a sustained virologic response (SVR) rate of >97% in patients with chronic hepatitis C virus (HCV) infection in the first published real-world Japanese data. However, a recently published study showed that the treatment was often discontinued in patients ≥75 years old, resulting in low SVR in intention-to-treat (ITT) analysis. Thus, our aim was to evaluate real-world data for G/P therapy in patients ≥75 years of age, the population density of which is high in “rural” regions.Patients and Methods: We conducted a multicenter study to assess the efficacy and safety of G/P therapy for chronic HCV infection, in the North Kanto area in Japan.Results: Of the 308 patients enrolled, 294 (95.5%) completed the treatment according to the protocol. In ITT and per-protocol analyses, the overall SVR12 rate was 97.1% and 99.7%, respectively. The old-aged patients group consisted of 59 participants, 56 of whom (94.9%) completed the scheduled protocol. Although old-aged patients tended to have non-SVR factors such as liver cirrhosis, history of HCC, and prior DAA therapies, the SVR12 rates in old-aged patients were 98.3% and 100% in the ITT and PP analyses, respectively. Of 308 patients enrolled, adverse events were observed in 74 patients (24.0%), with grade ≥3 events in 8 patients (2.6%). There was no significant difference in any grade and grade ≥3 adverse events between the old-aged group and the rest of the study participants. Only one patient discontinued the treatment because of adverse events.Conclusion: G/P therapy is effective and safe for old-aged patients.