Estimates of global research productivity in using nicotine replacement therapy for tobacco cessation: a bibliometric study

Table 1 The top 10 ranking of the most productive countries in publishing the largest number of articles associated with nicotine replacement therapy for tobacco cessation during the period from 1970 to 2016

SCR^a	Countries	Articles (%)	h-index	Publications per population size in million inhabitants	Publications per GDP (current US$) in billion	Prevalence of tobacco smoking^b	Number of Publications per 100,000 smokers	Collaborations with foreign countries	Number (%)^c of documents with international authors
1st	United States	986 (46.1)	92	3.051	0.053	17.2	1.77	32	127 (12.9)
2nd	United Kingdom	312 (14.6)	57	4.753	0.118	19.2	2.48	21	98 (31.4)
3rd	Australia	102 (4.8)	25	4.227	0.085	14.9	2.84	8	35 (34.3)
3rd	Sweden	102 (4.8)	41	10.303	0.198	20.6	5.00	19	56 (54.9)
5th	Canada	85 (4.0)	23	2.342	0.056	14.9	1.57	6	33 (38.8)
6th	France	51 (2.4)	16	0.762	0.021	27.6	0.28	11	12 (23.5)
7th	Germany	49 (2.3)	13	0.593	0.014	30.3	0.20	11	14 (28.6)
8th	Switzerland	47 (2.2)	21	5.615	0.070	23.2	2.42	9	17 (36.2)
9th	Denmark	41 (1.9)	22	7.155	0.134	17.0	4.21	8	12 (29.3)
10th	New Zealand	34 (1.6)	15	7.249	0.184	16.3	4.45	6	18 (52.9)

SCR Standard Competition Ranking
^aEqual countries have the same ranking number, and then a gap is left in the ranking numbers
^bAge-standardized prevalence of current tobacco smoking among people aged 15 years and older [53]
^cPercentage of documents with international authors from the total number of documents for each country

ISSN: 1744-8603