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. 2017 Jun 15;2(12):e95206. doi: 10.1172/jci.insight.95206

Figure 1. Biomedical research publication output for the US and China from 2000 to 2015.

Figure 1

(A) The percentage of manuscripts originating from China or the US that include international collaborations has been steadily increasing during the past 15 years regardless of the journal impact (China: P = 0.03 for high-impact and P = 0.008 for mid-impact journals; US: P = 0.001 for high-impact and P = 0.05 for mid-impact journals). In contrast, the percentage of manuscripts that originated from US-based authors during 2000 to 2015 has decreased in high-impact journals (P = 0.007) or remained relatively unchanged for mid-impact journals (P = 0.28), while those originating from China-based authors has steadily increased in both high-impact (P = 0.02) and mid-impact journals (P = 0.04). (B) The percentage of manuscripts from the combined China-only authors and China-international collaborations has been steadily increasing regardless of the journal type (P = 0.001 and 0.04 for high- and mid-impact journals, respectively), while there has not been a significant change for the combined US-only and US-international publications for high-impact (P = 0.17) or mid-impact (P = 0.15) journals.