Top Countries in Aging Research
United States ranks first in 2022-now, followed by China and United Kingdom, out of 4 ranked countries.
Quality score: the square root of excellence (the share of works in the world top 10% against what the place's own topics predict, on English-language articles and reviews) times the square root of the journal factor (its papers in the Nature Index's selective journals against what its topics predict), times output to the power 0.3 times breadth (how much of the selected area it works in) to the power 0.25. Floor: 100 fractional works in this field.
Ranked by research quality, 2022-now
| # | Country | Score | Top-10% rate | Works | Citations | All time |
|---|---|---|---|---|---|---|
| 1 |  United States |
100.0 | 9.7% | 1.6k | 18k | #1 |
| 2 |  China |
50.0 | 13.9% | 1k | 12k | #2 |
| 3 |  United Kingdom |
20.8 | 12.8% | 208 | 2.9k | #4 |
| 4 |  Japan |
0.0 | 6.2% | 203 | 1.2k | #9 |
countries ranked worldwide in Aging (4). rank on the quality score within the stated pool. The score track runs 0 to 100; the rate track carries no average mark, because the average differs by field (about 6% in Dentistry, 21% in Economics).
Ranked by volume, 2022-now
- 1
United States
1.9k works
- 2
China
1.2k works
- 3
United Kingdom
247 works
- 4
Germany
233 works
- 5
India
231 works
- 6
Japan
229 works
- 7
Canada
173 works
- 8
France
168 works
- 9
South Korea
144 works
- 10
Spain
138 works
- 11
Russia
120 works
- 12
Italy
113 works