Richard Nakamura
Biographic Data
| ID | 903475 |
|---|---|
| NAME | Richard Nakamura |
| GIVEN NAMES | Richard |
| FAMILY NAME | Nakamura |
| SIGNATURE | NAKAMURA R |
| AFFILIATIONS | Hitotsubashi University |
| ORCID | 0000-0002-3217-6452 |
| VERIFIED | Yes |
| TOTAL WORKS | 17 |
| TOTAL CITATIONS | 30 |
| AUTHOR COUNT | 17 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2003 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Socioeconomic and regional inequalities in health-related quality of life in Bhutan: A nationally representative cross-sectional study
Background: Bhutan lacks comprehensive data on health-related quality of life (HRQoL) despite its growing population and rising disease burden. This study provides the first national and subnational assessment of HRQoL inequalities and their determinants in Bhutan's general population. Methods: We analysed data from 11 340 adults aged ≥15 years from the 2023 Bhutan National Health Survey, a nationally representative cross-sectional survey. We ass…
Valuing health across groups: A cross-sectional population-based willingness-to-pay survey in Bhutan
INTRODUCTION: Context-specific cost-effectiveness thresholds (CETs) informed by societal willingness to pay (WTP) are crucial for healthcare resource allocation in low- and middle-income countries. This study investigated WTP for health per quality-adjusted life year (QALY) in Bhutan. METHODS: A WTP survey was conducted alongside the 2023 National Health Survey in Bhutan, sampling 1869 households. Using contingent valuation, respondents assigned …
Socio-demographic disparities in health-related quality of life in hypertensive patients in Bangladesh: A comprehensive survey analysis
Study findings indicate disparities in HRQoL based on age, gender, education, and socioeconomic status, highlighting the need for targeted policy interventions
Identifying key factors for successful formulation and implementation of healthcare policies on non-communicable diseases: A multinational analysis
Objectives: Non-communicable diseases (NCDs) are a major public health concern that accounts for 74% of global deaths each year. The increasing burden of NCDs exhausts public health resources and threatens the achievement of the 2030 agenda for sustainable development. The purpose of this study is to thematically analyze the contributory factors in the health policy process and reforms to strengthen the prevention of NCDs across borders, as well …
A systematic review and network meta-analysis of population-level interventions to tackle smoking behaviour
Trends and Determinants of Cigarette Tax Increases in Japan: The Role of Revenue Targeting
Cigarette prices in Japan are lower than those in most other high-income countries. A more striking fact is that cigarette tax revenues have been kept almost flat at just over two trillion JPY (Japanese yen; 18.2 billion US dollars) over more than three decades, despite steadily declining cigarette sales and seemingly weakening pressure from stakeholders with a vested interest in the tobacco industry. We attempted to examine trends and determinan…
Operational and structural factors influencing enrolment in community-based health insurance schemes: An observational study using 12 waves of nationwide panel data from Senegal
Community-based health insurance (CBHI) has been implemented in many low- and middle-income countries to increase financial risk protection in populations without access to formal health insurance. While the design of such social programmes is fundamental to ensuring equitable access to care, little is known about the operational and structural factors influencing enrolment in CBHI schemes. In this study, we took advantage of newly established da…
An Instrumental Variable Approach for Head Start Attendance on Low Income Children
Purpose: This study examined (1) the causal impact of Head Start on children’s comprehensive outcomes and (2) why families did not comply to the original assignment. Method: Based on the Head Start Impact Study data, children between the ages of 3 and 4 years ( N = 3780) were examined for assignment, attendance, and causal impacts on outcomes. Results: Effect of instrumental variable analysis was greater than that of assignment and attendance for…
Global, regional, and national progress in financial risk protection towards universal health coverage, 2000–2030
The physical activity at work (PAW) study protocol: A cluster randomised trial of a multicomponent short-break intervention to reduce sitting time and increase physical activity among office workers i…
The PAW study has been registered at the Thai Clinical Trials Registry (TCTR) under the study ID TCTR20200604007 . Registered 02 June 2020
Effects of a sugar-sweetened beverage tax on prices and affordability of soft drinks in Chile: A time series analysis
Chile is one of several countries that recently implemented a fiscal policy to reduce soft drink (SD) intake and obesity. In 2014 the government increased the existing ad-valorem tax on high-sugar SD by 5% and decreased by 3% the tax on low-sugar SD, based on a 6.25gr/100 ml sugar threshold. This study aims to evaluate the tax modification passed-on to consumers through prices, and to calculate changes in affordability of SDs. We analysed nationa…
The impact of taxation and framing on diet: An online field study with breakfast cereals and soft drinks
Sales impact of displaying alcoholic and non-alcoholic beverages in end-of-aisle locations: An observational study
Altering micro-environments to change population health behaviour: Towards an evidence base for choice architecture interventions
This conceptual groundwork provides a foundation for future research to investigate the effectiveness of choice architecture interventions within micro-environments for changing health behaviour. The approach we used may also serve as a template for mapping other under-explored fields of enquiry
Socioeconomic differences in purchases of more vs. less healthy foods and beverages: Analysis of over 25,000 British households in 2010
The Relationship Between Weight Loss and Time and Risk Preference Parameters: A Randomized Controlled Trial
This study aimed to assess the effectiveness of intervention (specifically, intervention by telephone and mails, known as ‘tele-care’) relative to self-help as a weight-loss method. The question of whether there is a correlation between changes in two preference parameters – time discounting (i.e. impatience) and risk aversion – and the level of commitment was examined. The study, spanning a period of 24 weeks in 2006–2007, comprised 118 particip…
Including Ethnic Minorities in Mental Health Intervention Research: A Practical Approach to a Long-Standing Problem
Socioeconomic differences in purchases of more vs. less healthy foods and beverages: Analysis of over 25,000 British households in 2010
Sales impact of displaying alcoholic and non-alcoholic beverages in end-of-aisle locations: An observational study
Effects of a sugar-sweetened beverage tax on prices and affordability of soft drinks in Chile: A time series analysis
Chile is one of several countries that recently implemented a fiscal policy to reduce soft drink (SD) intake and obesity. In 2014 the government increased the existing ad-valorem tax on high-sugar SD by 5% and decreased by 3% the tax on low-sugar SD, based on a 6.25gr/100 ml sugar threshold. This study aims to evaluate the tax modification passed-on to consumers through prices, and to calculate changes in affordability of SDs. We analysed nationa…
Global, regional, and national progress in financial risk protection towards universal health coverage, 2000–2030
Including Ethnic Minorities in Mental Health Intervention Research: A Practical Approach to a Long-Standing Problem
The Relationship Between Weight Loss and Time and Risk Preference Parameters: A Randomized Controlled Trial
This study aimed to assess the effectiveness of intervention (specifically, intervention by telephone and mails, known as ‘tele-care’) relative to self-help as a weight-loss method. The question of whether there is a correlation between changes in two preference parameters – time discounting (i.e. impatience) and risk aversion – and the level of commitment was examined. The study, spanning a period of 24 weeks in 2006–2007, comprised 118 particip…
Altering micro-environments to change population health behaviour: Towards an evidence base for choice architecture interventions
This conceptual groundwork provides a foundation for future research to investigate the effectiveness of choice architecture interventions within micro-environments for changing health behaviour. The approach we used may also serve as a template for mapping other under-explored fields of enquiry
Socioeconomic differences in purchases of more vs. less healthy foods and beverages: Analysis of over 25,000 British households in 2010
Sales impact of displaying alcoholic and non-alcoholic beverages in end-of-aisle locations: An observational study
The impact of taxation and framing on diet: An online field study with breakfast cereals and soft drinks
The physical activity at work (PAW) study protocol: A cluster randomised trial of a multicomponent short-break intervention to reduce sitting time and increase physical activity among office workers i…
The PAW study has been registered at the Thai Clinical Trials Registry (TCTR) under the study ID TCTR20200604007 . Registered 02 June 2020
Effects of a sugar-sweetened beverage tax on prices and affordability of soft drinks in Chile: A time series analysis
Chile is one of several countries that recently implemented a fiscal policy to reduce soft drink (SD) intake and obesity. In 2014 the government increased the existing ad-valorem tax on high-sugar SD by 5% and decreased by 3% the tax on low-sugar SD, based on a 6.25gr/100 ml sugar threshold. This study aims to evaluate the tax modification passed-on to consumers through prices, and to calculate changes in affordability of SDs. We analysed nationa…
Trends and Determinants of Cigarette Tax Increases in Japan: The Role of Revenue Targeting
Cigarette prices in Japan are lower than those in most other high-income countries. A more striking fact is that cigarette tax revenues have been kept almost flat at just over two trillion JPY (Japanese yen; 18.2 billion US dollars) over more than three decades, despite steadily declining cigarette sales and seemingly weakening pressure from stakeholders with a vested interest in the tobacco industry. We attempted to examine trends and determinan…
Operational and structural factors influencing enrolment in community-based health insurance schemes: An observational study using 12 waves of nationwide panel data from Senegal
Community-based health insurance (CBHI) has been implemented in many low- and middle-income countries to increase financial risk protection in populations without access to formal health insurance. While the design of such social programmes is fundamental to ensuring equitable access to care, little is known about the operational and structural factors influencing enrolment in CBHI schemes. In this study, we took advantage of newly established da…
An Instrumental Variable Approach for Head Start Attendance on Low Income Children
Purpose: This study examined (1) the causal impact of Head Start on children’s comprehensive outcomes and (2) why families did not comply to the original assignment. Method: Based on the Head Start Impact Study data, children between the ages of 3 and 4 years ( N = 3780) were examined for assignment, attendance, and causal impacts on outcomes. Results: Effect of instrumental variable analysis was greater than that of assignment and attendance for…
Global, regional, and national progress in financial risk protection towards universal health coverage, 2000–2030
Identifying key factors for successful formulation and implementation of healthcare policies on non-communicable diseases: A multinational analysis
Objectives: Non-communicable diseases (NCDs) are a major public health concern that accounts for 74% of global deaths each year. The increasing burden of NCDs exhausts public health resources and threatens the achievement of the 2030 agenda for sustainable development. The purpose of this study is to thematically analyze the contributory factors in the health policy process and reforms to strengthen the prevention of NCDs across borders, as well …
A systematic review and network meta-analysis of population-level interventions to tackle smoking behaviour
Valuing health across groups: A cross-sectional population-based willingness-to-pay survey in Bhutan
INTRODUCTION: Context-specific cost-effectiveness thresholds (CETs) informed by societal willingness to pay (WTP) are crucial for healthcare resource allocation in low- and middle-income countries. This study investigated WTP for health per quality-adjusted life year (QALY) in Bhutan. METHODS: A WTP survey was conducted alongside the 2023 National Health Survey in Bhutan, sampling 1869 households. Using contingent valuation, respondents assigned …
Socio-demographic disparities in health-related quality of life in hypertensive patients in Bangladesh: A comprehensive survey analysis
Study findings indicate disparities in HRQoL based on age, gender, education, and socioeconomic status, highlighting the need for targeted policy interventions
Socioeconomic and regional inequalities in health-related quality of life in Bhutan: A nationally representative cross-sectional study
Background: Bhutan lacks comprehensive data on health-related quality of life (HRQoL) despite its growing population and rising disease burden. This study provides the first national and subnational assessment of HRQoL inequalities and their determinants in Bhutan's general population. Methods: We analysed data from 11 340 adults aged ≥15 years from the 2023 Bhutan National Health Survey, a nationally representative cross-sectional survey. We ass…
Medicine (12 works) · Economics (10 works) · Environmental health (8 works) · Obesity, Physical Activity, Diet (6 works) · Population (6 works) · Public health (6 works) · Business (5 works) · Demography (5 works) · Psychology (5 works) · Gerontology (4 works)