Bibliometric analysis of document types and publication years
Table 1 shows details about the top ten document types and publication years of papers included in the current study. Of the 2627 papers first identified and all of them were analyzed. Of these papers, the majority of included papers were research articles (2.320, 88.3%). The next two types of publications are respectively were review articles (228, 8.7%) and early access (59, 2.3%). Top ten publication years sleep papers included around 70.7% of the total number of papers. The highest number of publications was in 2022 (247, 9.4%). The papers were published in three languages (English, Spanish and Portuguese) and the most common publication language was English (2.511; 95.6%). In total, retrieved papers were published in 10 WOS Index, and the highest number of publications was in Social Sciences Citation Index (SSCI) (2.202, 83.8%) and Science Citation Index Expanded (SCI-EXPANDED) (2.136, 81.3%).
Bibliometric analysis of the Keywords
The network visualization map for author keywords with minimum occurrences of one included 117 clusters of 4128 keywords with 22766 links and a total link strength of 27339. Top ten common keywords were nursing (Occ=440, total link= 2122), sleep (Occ=388, total link= 1764, nurses (Occ=205, total link= 1004, fatigue (Occ=182, total link=922), sleep quality (Occ= 173, total link=762), depression (Occ=119, total link=606), quality of life (Occ=129, total link=605), anxiety (Occ=93, total link=462), nurse (Occ=92, total link=414), and shift work (Occ=86, total link=404). Keywords with the same color tend to have close relation and usually co-occur together. (Figure 1).
Bibliometric analysis of the citations and publications
Table 2 shows details about the ten journal on sleep in nursing research. In total, 181 journals published the included papers. Top ten journals publishing sleep research in nursing included around 30.9% of the total number of papers. The papers were published at most belong to in Journal of Clinıcal Nursing (n=177, 6.8%; Citations: 4101, Citations per paper: 23.2). The cited were published at most belong to in Journal of Advanced Nursing (n=172, 6.5%; Citations: 6365, Citations per paper: 37.0) (Figure 2).
Table 3 shows details about top ten citations and publication. According to the citation document analysis, a network map was created by determining at least 1 minumum number of citations of a document. In total, 2.199 document published included papers. The most cited belongs to the study " Advancing the science of symptom management " made by Dodd. in 2001 (n=648, total link= 30). The first 3 studies followed by Caruso (2014) (n=322, total link= 24), Fruh (2017) (n=268, total link=1), Scott 2006b (n=243, total link= 39).
Bibliometric analysis of the co-authorship
According to the authors' joint authorship analysis, a network map was created by determining at least 1 publication and at least 1 citation criteria to identify the most connected and collaborating authors. In total, 7.464 authors published included papers. According to the analysis among the highest-linked names, there were 1153 names, a total of 4141 links, and 4695 total link strength, which were combined in 50 clusters (Figure 3).
Bibliometric analysis of the bibliographic coupling and co-citation
Table 4 shows details about the top ten prolific authors included in the current study. A total of 1.777 authors have published on sleep in nursing research. According to the bibliographic coupling and co-citation analysis, there were 4316 ıtem, a total of 44861 links, and 50679 total link strength, which were combined in 56 clusters. Six authors in the list of ten most prolific authors were from USA. Ceolim MF was the most productive author (n=23; 0.9 %, 9.7 citations per paper, h-index = 11). The highest number of citations and citations per paper belongs to Miaskowski C (n=868, 86.8%, 86.8 citations per paper, h-index = 59). Among the authors, Miaskowski C has the highest h-index.
Bibliometric analysis of countries, Institutions, and International Collaborations
Table 5 shows details about the top ten active countries on sleep in nursing research. Top ten active countries publishing sleep research in nursing included around 86.8% of the total number of papers. Authors from 72 countries published the included papers. The United States was ranked first (n=1.026; 39.5%), followed by Brazıl (n=197; 7.5%) and People R Chına (n=196; 7.5%). According to the citation country analysis, a network map was created by determining at least 1 publication and at least 1 citation criteria to identify the most co-authorship and collaborating country. According to the analysis among the highest-linked names, there were 43 country, a total of 395 links, and 2814 total link strength, which were combined in 11 clusters (Figure 4).
Bibliometric analysis of journals
According to journals analysis, a network map was created by determining at least 1 document of a source and at least 1 citation criteria to identify the most journals. There were 162 journal, a total of 1221 links, and 2833 total link strength, which were combined in 17 clusters (Figure 4). The journal with the highest number of publications on this subject is Journal of Clinical Nursing (n=177, %=6.8). However, the number of publications of the Journal of Advanced Nursing, which ranks second, is similar. (n=172, %=6.5). Journal of Advanced Nursing has the highest number of citations per paper (n=37.0).