Bibliometric analysis of worldwide publications on multi-, extensively, and totally drug – resistant tuberculosis (2006–2015)

Table 3 Top ten productive countries along with their international collaboration and citation analysis (2006–2015)

SCR	Country	Frequency	% N = 2260	TC	C/A	h-index	NCC	SCP	%	TC	C/A	h-index	MCP	%	TC	C/A	h-index
1^st	USA	517	22.88	15,483	29.95	61	75	147	28.43	3153	21.45	30	370	71.57	12,330	33.32	52
2^nd	India	269	11.90	3341	12.42	29	39	216	80.30	1805	8.36	21	53	19.70	1536	28.98	18
3^rd	S. Africa	229	10.13	8380	36.59	40	50	45	19.65	555	12.33	12	184	80.35	7825	42.53	39
4^th	UK	186	8.23	4608	24.77	33	69	38	20.43	336	8.84	11	148	79.57	4272	28.86	33
5^th	China	158	6.99	1460	9.24	19	30	110	69.62	713	6.48	16	48	30.38	747	15.56	13
6^th	France	122	5.40	3116	25.54	25	74	33	27.05	327	9.91	9	89	72.95	2789	31.34	24
7^th	Switzerland	117	5.18	5766	49.28	37	63	22	18.80	1015	46.14	10	95	81.20	4751	50.01	33
8^th	S. Korea	102	4.51	3004	29.45	25	37	73	71.57	1161	15.90	19	29	28.43	1843	63.55	15
9^th	Italy	100	4.42	3515	35.15	32	52	25	25.00	199	7.96	9	75	75.00	3316	44.21	31
10^th	Germany	91	4.03	2837	31.18	28	55	21	23.08	132	6.29	5	70	76.92	2705	38.64	22

SCR standard competition rank
TC total citations
C/A number of citations per article. It is calculated by dividing the total number of citations by total number of publications retrieved for the assigned country
NCC number of collaborating countries
SCP single country publications (intra country collaboration)
MCP multiple country publications (inter country collaboration)
h-index Hirsh index
USA United States of America
UK United Kingdom
S. Africa South Africa
S. Korea South Korea

ISSN: 2049-6958