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Table 1 Scientific research output focusing exclusively on people aged 80 and over, by geographic region

From: Thematic research clusters in very old populations (≥ 80 years): a bibliometric approach

Geographic area 2000–2004 2005–2009 2010–2014 2015–2019 TOTAL
N % N % N % N % N %
North America 7 46.7 1772 35.5 2484 30 2423 28.3 6686 30.5
Europe 4 26.7 2157 43.2 3805 46 3599 42.1 9565 43.7
Asia 4 26.7 1060 21.2 1947 23.5 2688 31.4 5699 26
Oceania 1 6.7 206 4.1 361 4.4 403 4.7 971 4.4
Africa 0 0 15 0.3 38 0.5 50 0.6 103 0.5
L. America & Caribbean 1 6.7 73 1.7 197 2. 236 2.8 507 2.3
TOTAL 15 0.1 4995 22.9 8268 37.9 8555 39.2 21,833 100