Identifying the inequalities associated with immunisation coverage among children is crucial. We investigated the factors associated with complete immunisation among 12- to 23-month-old children in five South Asian countries: Afghanistan, Bangladesh, India, Nepal, and Pakistan, using nationally representative data sets from the Demographic and Health Survey (DHS). Descriptive statistics, bivariate association, and logistic regression analyses were employed to identify the prevalence and the factors in each country that affect the likelihood of full childhood immunisation coverage. The complete childhood immunisation coverage varied significantly within each country in South Asia. Afghanistan had the lowest immunisation rates (42.6%), whereas Bangladesh ranked the highest in complete childhood immunisation rates, at 88.2%. Similarly, 77.1% of Indian children, 79.2% of Nepali children, and 62.2% of Pakistani children were completely immunised. Household wealth status strongly correlated with full childhood immunisation in Afghanistan, India, and Pakistan at the bivariate level. The results from the logistic regression showed that a higher maternal educational level had a statistically significant association with complete childhood immunisation in all countries compared to mothers who did not attend any school. In conclusion, the study revealed the inequalities of complete childhood immunisation within South Asia. Governments must be proactive in their endeavours to address universal and equitable vaccine coverage in collaboration with national and international stakeholders and in line with the relevant Sustainable Development Goals.

The objective of this study was to explore the trends in the publication and production of open access (OA) and non-OA journals and articles over the last decade. Non-OA journals include subscription and hybrid journals, the articles of which cannot be freely accessed by researchers. To conduct this study, we used SCImago Journal Rank (SJR) data from 2011 to 2021. In analyzing the SJR data, we categorized publishers by the number of journals and articles published. The results showed the following: (a) although the number of OA journals has increased rapidly between 2011 and 2021, their share of total publications is still significantly lower than that of non-OA journals; (b) between 2011 and 2021, the number of publishers of non-OA journals had decreased slightly, while the number of OA journal publishers has increased rapidly; (c) publishers of all sizes increased the production of OA journal articles between 2011 and 2021, but the share of top publishers increased the most; and (d) MDPI, as a born-OA publisher, has become a global leader in OA journal article publishing in recent years.

The Scopus journal classification method, known as All Science Journal Classification (ASJC), follows a hierarchical organization of subject categories: minor, major, and supergroups. At the minor level, journals are assigned to one or more subject categories. We refer to this classification scheme as a multiple-category hierarchical scheme. The objective of this study is to investigate the dominant characteristics of subject categories within the Scopus database and quantify their dominance using various subject indices. To conduct the study, we formulated a set of subject category indices, including the Number of Journals (J), Total Instances of Subject Categories (SC), Number of Unique Subject Categories (USC), and Dominance Index (DOMI). The results showed that high DOMI values in subject categories indicate specialization and limited associations with other fields. There were minimal correlations between DOMI and other subject category indices like J, SC, and USC, demonstrating their uniqueness and independence. The study also revealed that subject categories within the Health Sciences exhibited higher DOMI values and greater specialization compared to those in the Physical Sciences, indicating a pronounced dominance in Health Sciences minor categories. Finally, minor subject categories exhibited more variation in subject category indices compared to their upper-level subject categories, highlighting the intricate variations within the hierarchical system of the Scopus classification. These findings have implications for researchers, emphasizing the need to consider a subject category’s dominance and associations when selecting journals for their research.

Purpose: The objective of this study was to compare Scopus journals published in East Asian countries—China, Japan, South Korea, and Taiwan—in terms of their open access status and metrics and to explore the implications of those findings for South Korea.Methods: To conduct this study, we selected four East Asian countries: China, Japan, South Korea, and Taiwan. We used journal information provided by SCImago Journal Rank (SJR) and Scopus. The following parameters were analyzed for journals published in East Asian countries: open access status, subject categories, quartiles, number of published documents, h-index, publishers, and citation rate.Results: In all East Asian countries, numerous commercial publishers publish journals. One exception is Science Press, a Chinese government-sponsored publisher, which published the largest number of journals in the East Asian region. Japan had the highest median number of years covered by SJR. However, the proportion of Q1 journals in Japan was the lowest of the East Asian countries. South Korea had the highest proportion of Q1 journals in the country’s total journal production. Publishers in South Korea published more open access journals than any other East Asian country. Despite publishing a high proportion of prestigious journals, South Korea lagged behind China and Japan in the number of Scopus-indexed journals.Conclusion: The findings indicate that South Korea has made significant progress in locally producing influential journals over the years. However, more efforts to publish international journals are required for South Korea to increase the number of Scopus journals.