Table 2.

Number of published articles for the top 14 countries worldwide during the time periods 2004–2008, 2009–2013 and 2004–2013, across all disease areas and specifically in Alzheimer disease and the four major comparator disease states (stroke, Parkinson disease, HIV and diabetes)

	All			Alzheimer		Stroke		Parkinson		HIV		Diabetes
	2004–2013	2004–2008	2009–2013	2004–2008	2009–2013	2004–2008	2009-2013	2004–2008	2009-2013	2004–2008	2009–2013	2004–2008	2009–2013
United States	2,949,083	1,303,555	1,645,528	11,260	14,499	11,561	16,615	6537	8335	20,976	26,938	25,006	33,842
China	1,188,127	383,509	804,618	1247	3830	1289	4370	665	1932	1577	3441	2413	8499
United Kingdom	795,735	343,455	451,080	2487	3435	3241	4689	1767	2214	4080	5461	5822	7752
Germany	757,711	323,922	433,789	2037	2956	2950	4400	1772	2316	1928	2285	4516	6069
Japan	675,315	321,389	353,926	2240	2543	2328	3408	1451	1576	1369	1503	5706	7192
France	537,568	231,875	305,893	1250	1932	1485	2264	997	1281	3123	3331	2890	3726
Canada	467,998	198,202	269,796	1448	1999	1974	3061	992	1354	1963	3014	3227	4889
Italy	424,650	175,930	248,720	1775	2463	1358	2770	1232	1758	2090	2244	3681	5219
Spain	375,748	145,233	230,515	1010	1776	1029	1690	817	1226	1811	2221	2185	3364
India	353,056	134,381	218,675	296	769	319	771	207	534	1201	2122	1512	3487
Australia	334,610	127,767	206,843	822	1512	1172	2199	510	796	1298	2069	2442	4144
South Korea	329,696	117,933	211,763	743	1386	892	2188	432	954	337	509	1588	3702
Netherlands	257,829	104,649	153,180	830	1191	1207	2031	531	814	1106	1675	2137	3285
Brazil	861,367	93,334	168,033	377	753	450	987	270	518	1273	2025	1384	2980
World	10,439,490	4,364,842	6,074,648	26,190	38,302	32,552	50,506	17,219	24,059	42,679	56,171	68,575	101,968