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This study aimed to identify the quality consumers expect from functional food. This study investigated the quality dimensions and indicators female consumers expect in functional food.

This study used a quantitative approach. Data were collected through a survey using a self-administered questionnaire from 149 women aged 17 years and over in the Greater Jakarta area. Data analysis consists of three stages: exploratory factor analysis (EFA), confirmatory factor analysis-structural equation modeling (CFA-SEM) and consumer expectation value analysis. Statistical Package for the Social Sciences (SPSS) and Lisrel software were used to assist the analysis.

The analysis results showed that women expect functional food products to fulfill the aspects of product presentation, product assurance, convenience, health benefits and safety and sensory characteristics. These five aspects are referred to as the expected quality dimensions. Twenty-one indicators can be used to measure the quality of functional food expected by women.

Other researchers can use this study to understand functional food female consumers' behavior. Furthermore, functional food companies can utilize it to measure consumers' expectations of their products' quality and performance.

This research is believed to be the first study to identify the dimensions of functional food quality expected by female consumers. Most existing research on the perceived quality of functional food measures functional food quality based on performance and ignored the differences in expectations between men and women.

This research aims to develop an index for measuring Indonesian quality label awareness among motorcycle helmet users. The index measures quality label awareness and its antecedent variables, which are the variables that represent marketing effort on promoting the quality label.

The indicators of the index were derived from a literature review. A survey was performed. The respondents are 487 motorcycle drivers and passengers helmet users in Jakarta. The authors conducted some statistical analyses, namely, exploratory factor analysis, Cronbach’s α analysis, and multiple regression analysis.

A quality label awareness index was developed and tested. The index consists of quality label awareness and its determinants. The determinants are label marketing clarity and label marketing credibility. The research result showed that the index is valid and reliable.

The authors performed the survey only at Jakarta using convenience sampling technique. Thus, the findings may not be generalized to other contexts. Given this, replication research is important to be performed in the future in order to test the stability of the findings in other contexts.

The index can be used to evaluate the effectiveness of quality label and quality label marketing programs.

This study is believed to be the first to develop and test consumers' quality label awareness index.

This research aims to investigate the simultaneous effect of trust, subjective norm, image and perceived risk on patient loyalty.

This research used quantitative research methodology. The authors surveyed the patient of a healthcare service institution in Depok, Indonesia, and 163 of the institution patients participated in the survey. Multiple regressions analysis was performed to analyze the empirical data.

The findings showed that subjective norm and image have positive influence on patient loyalty. However, this research also found that trust and perceived risk do not have significant impact on patient loyalty.

The author(s) used convenience sampling method, and the sample only involved respondents from a healthcare service institution in Depok, Indonesia. Hence, the findings of this research may not be generalized to the other contexts. Therefore, we recommend further research to replicate this research to examine the stability of this research’s findings.

The research results show that subjective norm and image affect the patient loyalty. Thus, the management of healthcare service institution should consider and manage all of these factors proactively.

This study is believed to be the first to develop and test patient loyalty model that includes trust, subjective norm, image, perceived risk and trust.

During Covid-19 pandemic, Millennials, which are familiar with the Internet, may contribute in facing the pandemic by consistently sharing healthy food information. Thus, it is important to improve Millennials online healthy food information-sharing behaviour during the Covid-19 pandemic. This research aims to examine the simultaneous effects of e-health literacy, knowledge of the digital health communication media (DHCM) use, facilitating conditions, information quality and source credibility on Millennials' online healthy food information-sharing behaviour during the Covid-19 pandemic.

A survey was performed to collect the data. The respondents of the survey are 205 DHCM millennial users who lived in Tangerang Regency and Tangerang City, Indonesia. This research performed a multiple regression analysis to test the conceptual model and proposed hypotheses.

Millennials' online healthy food information-sharing behaviour during the Covid-19 pandemic was significantly affected by perceived threat of Covid-19, knowledge of the DHCM use and the facilitating conditions. However, it was not significantly affected by e-health literacy, information quality and source credibility.

This research employed a purposive sampling technique. This research also was conducted only in Tangerang Regency and Tangerang City, Indonesia. In order to test the stability of the research findings, future research should be conducted in other contexts.

In order to improve Millennials' online healthy food information-sharing behaviour during the Covid-19 pandemic, it was essential to educate Millennials on the importance of healthy food consumption during the Covid-19 pandemic and their relationships. It is also important to enrich Millennials' knowledge of reliable and trustworthy online health information sources, such as the DHCM, and the search method. Furthermore, the facilitating conditions of online healthy food information-sharing behaviour should be improved.

It is well known that online healthy food information-sharing behaviour is important during Covid-19 pandemic. However, there is lack of study that specifically focused on Millennials' online healthy food information-sharing behaviour during the Covid-19 pandemic. This paper is the first that develops and tests a model of Millennials' online healthy food information-sharing behaviour during the Covid-19 pandemic. The model can be used to understand the behaviour and develop intervention strategy.

This research aims to test the simultaneous effects of the perceived threat of COVID-19, e-health literacy, e-health access barrier, loyalty toward healthy foods in general, loyalty toward functional foods, the affordability of healthy foods in general and the affordability of functional foods on health-related quality of life (HrQoL) during the COVID-19 pandemic.

A survey with 400 respondents in Banten, Indonesia, was performed. The data were analyzed using multiple regression analysis.

The results of the research showed that HrQoL during the COVID-19 pandemic was positively affected by e-health literacy and the affordability of healthy foods in general while negatively affected by the e-health access barrier, the perceived threat of COVID-19 and loyalty toward healthy foods in general. Furthermore, HrQoL was not influenced by loyalty toward and affordability of functional foods.

This research was conducted in Banten. Due to the operational limitations during the COVID-19 pandemic, this research used a purposive sampling technique. Therefore, the next research should retest the model in different contexts and locations.

To improve HrQoL during the COVID-19 pandemic, citizens need to be educated on finding and utilizing credible online health information during the COVID-19 pandemic. Governments and health service providers should also strive to offer ease of access to credible online health information. Furthermore, the affordability of healthy foods, in general, should be managed well.

A few studies on HrQoL during COVID-19 pandemic were performed. However, there is a lack of paper that examines the role of food customer loyalty and affordability in a model of HrQoL during the COVID-19 pandemic. To the best of the authors’ knowledge, this paper is the first that involved and tested the role of food customer loyalty and affordability in a model of HrQoL during the COVID-19 pandemic.

This research aims to test the effects of attitude, perceived behavioral control (PBC), subjective norm and perceived quality of official coronavirus disease 2019 (COVID-19) websites on intention to use official COVID-19 websites.

This study collected data using an online questionnaire. It involved 120 Indonesians who used official COVID-19 websites. The data were analyzed using the multiple regression analysis.

This research found that intention to use official COVID-19 websites is significantly and positively affected by the quality of the website, attitude and subjective norm. PBC does not influence intention to use official COVID-19 websites.

This research was only conducted in the context of Indonesians. Furthermore, a convenience sampling technique was applied. Future research should be done in a different context with larger samples to test the generalization of this research's findings.

To improve intention to use official COVID-19 websites, people must be directed to have a positive attitude toward the website. The developer must ensure the quality of the website. It is also essential to involve leaders and public figures whose opinions might be able to sway citizens to use official COVID-19 websites consistently.

This research is the first one of its kind that studied citizens' intention to use official COVID-19 websites.

The purpose of this paper is to measure the efficiency of ISO 9001-certified public healthcare center in Jakarta, Indonesia and examine the impact of “re-certification“ on the efficiency.

The sample of the research is 30 ISO 9001-certified district public healthcare centers in Jakarta. The data envelopment analysis (DEA) and the Man–Whitney U test were applied.

The research result showed that there is a variation in efficiency values of ISO 9001-certified public healthcare centers that this research studied. There are only 23 percent of the public healthcare centers that can be categorized as the technically efficient public healthcare center. Furthermore, this research also found that there are no significant efficiency value differences among the groups of public healthcare center based on the number of “re-certification” the center experienced.

This research only involved ISO 9001-certified public healthcare center from Jakarta, Indonesia.

Registering ISO 9001 for the public healthcare center does not guarantee that the public healthcare center will have better efficiency. The government and the public healthcare center management should ensure that the ISO 9001 implementation method used by the public healthcare center is appropriate for improving the efficiency of the public healthcare center.

There is a lack of research that studied the efficiency of ISO 9001-certified public healthcare center. Furthermore, there is no research that investigates the effect of “re-certification“ on efficiency. This research fulfills the literature gaps.

This study aims to conduct a bibliometric assessment of existing literature in the fields of health communication and social media in the Asian context.

Using 265 Scopus-indexed papers, a comprehensive bibliometric study was performed, incorporating both performance and science mapping analyses.

The results reveal an increasing trend in the publication of this topic. This study also identified the top author, country, articles and author collaboration clusters. Four primary themes emerged from the publications: “Papillomavirus” and “the COVID-19 pandemic” were categorized as niche themes; “gender and cohort” was identified as a basic theme; and “behavioral intention” was classified as an emerging or declining theme. These can serve as the foundations for future research directions.

This research used only the Scopus database as its data source. However, future bibliometric research could investigate other databases.

This paper has practical implications for researchers, health communication managers, government and policymakers. It provides valuable information that can guide researchers in conducting new studies, fostering collaborations and conducting further bibliometric analyses. Health communication managers can use this paper to design and manage social media-based health communication programs. The government could leverage these findings to support evidence-based policy implementation in the field of health communication.

This study, to the best of the authors’ knowledge, marks the first bibliometric analysis focused on the literature in the field of health communication and social media in the Asian context.

This research aims to develop and test a model of digital health communication media (DHCM) use for healthy food information – DHCM usage – during the Covid-19 pandemic. More specifically, this research investigated the simultaneous effects of perceived threat of Covid-19, e-health literacy, attitude toward DHCM usage, knowledge toward DHCM usage, facilitating conditions and information quality on the DHCM usage.

The empirical data were collected through a survey. The respondents of the survey are 192 DHCM users who lived in Tangerang Regency. Structural equation modelling (SEM) analysis was performed.

The DHCM usage during the Covid-19 pandemic is significantly affected by the attitude towards the DHCM usage and the facilitating conditions. However, the DHCM usage during the Covid-19 pandemic is not significantly affected by the perceived threat of Covid-19, e-health literacy, information quality and knowledge of the DHCM usage.

This research was conducted only in Tangerang Regency and employed a purposive sampling technique. Future research should be conducted in other contexts to examine the stability of the research findings.

In order to improve DHCM usage for healthy food information, it is important for building a positive attitude towards DHCM usage and ensuring the availability of the facilitating conditions.

This paper is the first that develops and tests a model of DHCM usage for healthy food information during the Covid-19 pandemic.

This research seeks to simultaneously test the effect of attitude towards the behavior of following the “Stay at Home” policy, subjective norm, perceived behavioral control, perceived susceptibility and perceived severity on people's intention to follow the “Stay at Home” policy during COVID-19 pandemic.

The data were collected through an online survey with 148 respondents in the Greater Area of Jakarta, Indonesia. The data were then analyzed using multiple regressions.

The findings show that attitude towards the behavior, subjective norm and perceived behavioral control positively and significantly affect intention to follow “Stay at Home” during the COVID-19 pandemic. However, perceived susceptibility and perceived severity of COVID-19 do not significantly influence the intention to follow “Stay at Home” during the COVID-19 pandemic.

This research was limited to the Greater Area of Jakarta, Indonesia. Furthermore, sampling was done through convenience sampling. Therefore, future research should be conducted in a different context to test the generalization of this research's findings.

To encourage citizens' adherence to the stay-at-home policy during the COVID-19 pandemic, they must be directed to have positive attitudes toward the policy. Financial and non-financial supports are critical to ensure citizens' ability to sufficiently observe the policy sufficiently. Another important aspect is the influence of leaders and public figures to consistently call for obedience consistently.

This is the first research that studies citizens' behavior related to the “Stay at Home” policy requisitioned by the government to hinder the spread of COVID-19.