Past and future trends in cancer and biomedical research: a comparison between Egypt and the World using PubMed-indexed publications

Table 2 Comparison between world’s and Egyptian cancer publications listed in the PubMed database between 1991 and 2010

Year	World’s cancer publications					Egyptian cancer publications					Egypt: world
	TC	HC	HC:TC%	AC	AC:TC%	TC	HC	HC:TC%	AC	AC:TC%	TC%	HC%	AC%
1991	86770	65990	76.1	24003	27.7	67	43	64.2	21	31.3	0.08	0.07	0.09
1992	90268	68869	76.3	24895	27.6	81	50	61.7	26	32.1	0.09	0.07	0.10
1993	93822	72559	77.3	26358	28.1	76	48	63.2	23	30.3	0.08	0.07	0.09
1994	98468	76110	77.3	27777	28.2	75	50	66.7	23	30.7	0.08	0.07	0.08
1995	101286	78486	77.5	28937	28.6	81	45	55.6	29	35.8	0.08	0.06	0.10
1996	105241	82586	78.5	29743	28.3	86	57	66.3	26	30.2	0.08	0.07	0.09
1997	107363	84247	78.5	30227	28.2	83	64	77.1	19	22.9	0.08	0.08	0.06
1998	111551	88029	78.9	30841	27.7	106	61	57.5	43	40.6	0.10	0.07	0.14
1999	115159	91027	79.0	32197	27.9	120	70	58.3	43	35.8	0.10	0.08	0.13
2000	122177	96180	78.7	33815	27.7	117	72	61.5	44	37.6	0.10	0.07	0.13
2001	126058	100116	79.4	34713	27.5	136	84	61.8	48	35.3	0.11	0.08	0.14
2002	130928	104573	79.9	36238	27.7	129	82	63.6	42	32.6	0.10	0.08	0.12
2003	139492	112269	80.5	37568	26.9	188	123	65.4	56	29.8	0.13	0.11	0.15
2004	148903	119560	80.3	39903	26.8	215	167	77.6	46	21.4	0.14	0.14	0.12
2005	161317	132300	82.0	42635	26.4	252	198	78.6	49	19.4	0.16	0.03	0.11
2006	170712	138476	81.1	44875	26.3	311	247	79.4	63	20.3	0.18	0.18	0.14
2007	181512	147077	81.0	46885	25.8	321	240	74.7	67	20.9	0.18	0.16	0.14
2008	192402	155218	80.7	49064	25.5	409	289	70.6	84	20.5	0.21	0.19	0.17
2009	201089	160966	80.1	50845	25.3	485	341	70.3	116	23.9	0.24	0.21	0.23
2010	211618	156734	74.1	49894	23.6	590	384	65.1	130	22	0.28	0.25	0.26
Total	2696136	2131372	--	721413	--	3928	2715	--	998	--	--	--	--
Mean	134807	106569	78.9	36071	27.1	196	136	66.96	50	28.67	0.13	0.11	0.13
SD	39219	31721	1.9	8708	1.26	152	109	7.28	30	6.68	0.06	0.06	0.05

TC: number of total biomedical publications, HC: number of human biomedical publications, AC: number of animal biomedical publications, HC:TC%: human to total biomedical publications expressed as a percentage, AC:TC%: animal to total biomedical publications expressed as a percentage, TC%: Egyptian to world’s total cancer publications expressed as percentage, HC%: Egyptian to world’s human cancer publications expressed as percentage, AC%: Egyptian to world’s animal cancer publications expressed as percentage, SD: standard deviation.

ISSN: 1756-0500