The mathematical framework is quantitative (based on order relations) but the analysis is also qualitative (number-free).
For each paper (107,623 papers, 96.2% in English) quantitative and qualitative parameters (number of weighted papers, impact factor, number of citations, h-index, international collaborations, number of authors, and research centers) were analyzed.
While all structures with quantitative results are extracted, where the activity data is ranged or only qualitative, the number of compounds extracted is capped at 200 or 100 examples, respectively [10].
Qualitative variables: number (percentage) Missing data: marital status (1), profession (4), professional status (1).
For qualitative variables, number and percentage were recorded, with missing data included in the calculation of percentages.
The cultivated cells were separated from the culture broth by filtration using Whatman qualitative paper (number 1).
Qualitative variables: number (percentage) Missing data: Perceived vulnerability score (4), perceived severity score (3), perceived benefits score (8), perceived barriers score (6), motivation score (6), fatalism score (4), attitude score (10), subjective norms (21), smoking status (6).
The sample for the qualitative study numbered 59 individuals.
In the qualitative studies numbers of participants were small, which includes a limitation of transferability (generalizability) of the results and this was mentioned as a limitation in many articles.
Both quantitative (number) and qualitative (quality in terms of coherency, consistency and completeness) aspects of indicators for addressing environmental, economic and social issues are considered.
