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The top 10 funding institutions according to the frequency_
| No. | Funding institution | Freq | Proportion (%) | Half-life |
|---|---|---|---|---|
| 1 | Agency for Healthcare Research and Quality | 39 | 0.79 | – |
| 2 | National Institute for Health Research | 22 | 0.45 | – |
| 3 | National Institutes of Health | 17 | 0.35 | 9 |
| 4 | National Institute of Nursing Research | 15 | 0.31 | – |
| 5 | National Institute on Aging | 15 | 0.31 | 9 |
| 6 | Canadian Institutes of Health Research | 14 | 0.29 | 9 |
| 7 | National Cancer Institute | 12 | 0.24 | – |
| 8 | NINR NIH HHS | 12 | 0.24 | – |
| 9 | AHRQ HHS | 12 | 0.24 | – |
| 10 | NCI NIH HHS | 11 | 0.22 | – |
Publication and citation frequency of the top 10 productive countries and regions_
| Ranking | Country | Publication count | Proportion of publications (%) | Citation freq | Citations (per paper) | Centrality |
|---|---|---|---|---|---|---|
| 1 | USA | 2737 | 55.72 | 26229 | 9.58 | 0.35 |
| 2 | England | 398 | 8.10 | 4714 | 11.84 | 0.35 |
| 3 | Canada | 369 | 7.51 | 4579 | 12.41 | 0.09 |
| 4 | Australia | 356 | 7.25 | 3688 | 10.36 | 0.05 |
| 5 | Netherlands | 222 | 4.52 | 3174 | 14.30 | 0.11 |
| 6 | Sweden | 113 | 2.30 | 1182 | 10.46 | 0.05 |
| 7 | Germany | 112 | 2.28 | 914 | 8.16 | 0.04 |
| 8 | Scotland | 79 | 1.61 | 1019 | 12.90 | 0.08 |
| 9 | Taiwan, China | 73 | 1.49 | 626 | 8.58 | 0 |
| 10 | Peoples Republic China | 71 | 1.45 | 464 | 6.54 | 0.02 |
The top 10 co-cited journals of NPs according to the citation frequency_
| No. | Freq | Journal | IF | Centrality | Half-life |
|---|---|---|---|---|---|
| 1 | 1386 | JAMA: The Journal of The American Medical Association | 47.661 | 0.10 | 7 |
| 2 | 1359 | Journal of Advanced Nursing | 2.267 | 0.18 | 7 |
| 3 | 1109 | The New England Journal of Medicine | 79.258 | 0.11 | 7 |
| 4 | 796 | Journal of Clinical Nursing | 1.635 | 0.03 | 8 |
| 5 | 796 | British Medical Journal | 23.259 | 0.03 | 6 |
| 6 | 699 | Lancet | 53.254 | 0.06 | 7 |
| 7 | 693 | International Journal of Neural Systems | 4.580 | 0.05 | 8 |
| 8 | 665 | Annals of Internal Medicine | 19.384 | 0.09 | 7 |
| 9 | 631 | Pediatrics | 5.515 | 0.09 | 6 |
| 10 | 621 | Health Affairs | 4.843 | 0.04 | 8 |
Publication and citation frequency of the top 10 productive institutions_
| Ranking | Institution | Publication count | Proportion of publications (%) | Citation freq | Citations (per paper) | Centrality |
|---|---|---|---|---|---|---|
| 1 | University of Michigan | 90 | 1.83 | 785 | 8.72 | 0.12 |
| 2 | University of California San Francisco | 88 | 1.79 | 1854 | 21.07 | 0.07 |
| 3 | Duke University | 83 | 1.69 | 863 | 10.40 | 0.03 |
| 4 | University of Washington | 81 | 1.65 | 881 | 10.88 | 0.19 |
| 5 | University of Pennsylvania | 75 | 1.53 | 1123 | 14.97 | 0.06 |
| 6 | University of North Carolina | 73 | 1.49 | 856 | 11.73 | 0.03 |
| 7 | University of TORONTO | 73 | 1.49 | 1178 | 16.14 | 0.17 |
| 8 | Columbia University | 68 | 1.38 | 786 | 11.56 | 0.29 |
| 9 | Johns Hopkins University | 66 | 1.34 | 903 | 13.68 | 0.03 |
| 10 | University of Pittsburgh | 64 | 1.30 | 626 | 9.78 | 0.04 |
Publication and citation frequency of the top 10 productive authors_
| No. | Author | Publications counts | Proportion of publications (%) | Citation freq | Citation freq (per paper) | Burst | Centrality |
|---|---|---|---|---|---|---|---|
| 1 | Gardner G | 24 | 0.49 | 464 | 19.33 | 5.26 | 0 |
| 2 | Gardner A | 21 | 0.43 | 381 | 18.14 | – | 0 |
| 3 | Hooker RS | 20 | 0.41 | 205 | 10.25 | 4.54 | 0 |
| 4 | Cashin A | 16 | 0.33 | 134 | 8.38 | – | 0 |
| 5 | Donald F | 15 | 0.31 | 195 | 13.00 | 5.08 | 0 |
| 6 | Hornor G | 15 | 0.31 | 137 | 9.13 | – | 0 |
| 7 | Martin-Misener R | 15 | 0.31 | 229 | 15.27 | 5.44 | 0 |
| 8 | Poghosyan L | 14 | 0.29 | 76 | 5.43 | – | 0 |
| 9 | Freed GL | 13 | 0.26 | 130 | 10.00 | – | 0 |
| 10 | Kilpatrick K | 13 | 0.26 | 166 | 12.77 | 4.91 | 0 |
The top 10 co-cited journals of NPs according to the strength of burst_
| No. | Burst | Freq | Journal | Centrality | Half-life |
|---|---|---|---|---|---|
| 1 | 41.35 | 209 | Plos One | 0 | 4 |
| 2 | 36.92 | 137 | Journal of the American Association of Nurse Practitioners | 0 | 2 |
| 3 | 36.76 | 108 | Aisthesis | 0 | 1 |
| 4 | 35.89 | 134 | BMJ Open | 0 | 2 |
| 5 | 32.42 | 185 | The Journal for Nurse Practitioners: JNP | 0.01 | 7 |
| 6 | 31.42 | 125 | JAMA Internal Medicine | 0 | 2 |
| 7 | 24.81 | 73 | BMJ Quality & Safety | 0 | 1 |
| 8 | 24.61 | 210 | Journal of the American Association of Nurse Practitioners | 0.03 | 4 |
| 9 | 21.59 | 56 | Archives of Disease in Childhood | 0 | 2 |
| 10 | 21.01 | 119 | BMC Family Practice | 0 | 3 |
The top 10 co-cited references in NPs according to the citation frequency_
| No. | Citation freq | Author | Title | Year | Source | Burst |
|---|---|---|---|---|---|---|
| 1 | 72 | Naylor MD (Alston, Norton et al. 1995) | The Role of Nurse Practitioners in Reinventing Primary Care | 2010 | Health affairs | 11.32 |
| 2 | 62 | Newhouse RR (Newhouse, Stanik-Hutt et al. 2011) | Advanced Practice Nurse Outcomes 1990–2008: A Systematic Review | 2011 | Nursing economic$ | 10.94 |
| 3 | 57 | Horrocks S (Horrocks, Anderson et al. 2002) | Systematic Review of Whether Nurse Practitioners Working in Primary Care Can Provide Equivalent Care to Doctors | 2002 | British medical journal | 21.60 |
| 4 | 53 | Kleinpell RM (Kleinpell, Ely et al. 2008) | Nurse Practitioners and Physician Assistants in the Intensive Care Unit: An Evidence-Based Review | 2008 | Critical care medicine | 12.57 |
| 5 | 47 | Moote M (Moote, Krsek et al. 2011) | Physician Assistant and Nurse Practitioner Utilization in Academic Medical Centers | 2011 | American journal of medical quality | 9.44 |
| 6 | 42 | Petterson SM (Petterson, Liaw et al. 2012) | Projecting US Primary Care Physician Workforce Needs: 2010–2025 | 2012 | Annals of family medicine | 7.54 |
| 7 | 40 | Kuo YF (Kuo, Loresto Jr et al. 2013) | States with the Least Restrictive Regulations Experienced the Largest Increase in Patients Seen by Nurse Practitioners | 2013 | Health affairs | 13.20 |
| 8 | 37 | Auerbach DI (Auerbach 2012) | Will the NP Workforce Grow in the Future: New Forecasts and Implications for Healthcare Delivery | 2012 | Medical care | 11.51 |
| 9 | 36 | Green LV (Green, Savin et al. 2013) | Primary Care Physician Shortages Could Be Eliminated through Use of Teams, Nonphysicians, and Electronic Communication | 2013 | Health affairs | 7.20 |
| 10 | 35 | Martinez-Gonzalez NA | Substitution of Physicians by Nurses in Primary Care: A Systematic Review and Meta-Analysis | 2014 | BMC health services research | 11.53 |
The top 10 keywords according to the occurring frequency_
| No. | Occurring freq | Keywords |
|---|---|---|
| 1 | 982 | Nurse practitioner |
| 2 | 562 | Care |
| 3 | 555 | Nurse |
| 4 | 461 | Primary care |
| 5 | 376 | Education |
| 6 | 376 | Management |
| 7 | 326 | Outcome |
| 8 | 323 | Physician |
| 9 | 297 | Impact |
| 10 | 267 | Health |