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Table 2 Number of articles indexed by PubMed from different Africa subregions for the period of 1996 to 2005

From: Geography of Africa biomedical publications: An analysis of 1996–2005 PubMed papers

Number of articles [% percentage within calendar year] (% share of world research output)
Subregions 1996 – 2005 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
Eastern Africa 6810 662 581 486 588 631 719 742 772 782 847
  [18.2] (0.13) [27.1] (0.15) [20.5] (0.13) [16.6] (0.11) [18.7] (0.12) [17.9] (0.12) [18.1] (0.13) [18.0] (0.13) [17.4] (0.13) [16.6] (0.12) [15.6] (0.12)
Middle Africa 1094 46 71 81 80 88 103 126 145 164 190
  [2.9] (0.02) [1.9] (0.01) [2.5] (0.02) [2.8] (0.02) [2.6] (0.02) [2.5] (0.02) [2.6] (0.02) [3.1] (0.02) [3.3] (0.02) [3.5] (0.02) [3.5] (0.03)
Northern Africa 9248 534 529 620 735 804 1017 1005 1230 1284 1490
  [24.7] (0.17) [21.9] (0.12) [18.6] (0.12) [21.6] (0.13) [23.4] (0.15) [22.8] (0.15) [25.5] (0.19) [24.4] (0.19) [27.8] (0.18) [27.3] (0.21) [27.5] (0.22)
Southern Africa 11493 840 923 963 961 1186 1241 1205 1268 1334 1313
  [30.7] (0.22) [34.4] (0.19) [32.5] (0.21) [33.6] (0.21) [30.6] (0.21) [33.6] (0.20) [31.2] (0.23) [29.2] (0.23) [28.6] (0.22) [28.4] (0.22) [29.1] (0.23)
Western Africa 8822 360 735 718 777 821 903 1049 1011 1135 1313
  [23.6] (0.17) [14.7] (0.08) [25.9] (0.17) [25.0] (0.16) [24.7] (0.16) [23.3] (0.16) [22.7] (0.17) [25.4] (0.19) [22.8] (0.19) [24.2] (0.17) [24.3] (0.19
All 37467 2442 2839 2868 3141 3530 3983 4127 4426 4699 5412
  [100.0] (0.70) [100.0] (0.55) [100.0] (0.64) [100.0] (0.62) [100.0] (0.65) [100.0] (0.68) [100.0] (0.74) [100.0] (0.74) [100.0] (0.76) [100.0] (0.75) [100.0] (0.79)
  1. Shown are the numbers of articles indexed by PubMed, from different Africa subregions, for the period 1996 – 2005. Values are expressed as number of articles (%) within a calendar year, and percentage of worldwide publications