62.3(top 0.1%)

2-year impact

70.3(top 0.1%)

3-year impact

77.4(top 0.1%)

5-year impact

58.9(top 0.1%)

10-year impact

70.8K(top 0.1%)

PR articles

5.2M(top 0.1%)

PR citations

902(top 0.1%)

PR h-index

1.0K(top 0.1%)

h-index

69.1(top 0.1%)

extended IF

62.6(top 0.1%)

2-YI (article-only)

51.5(top 1%)

2-YI (review-only)

9.5(top 1%)

2-YI (comm only)

61.9(top 0.1%)

2-YI (no self-cite.)

372.8K

documents

7.7M

doc citations

Lancet, The 2-year impact factor (no self-citations) — This chart shows the 2-year impact factor of **Lancet, The** excluding self-citations over time and its percentile among journals. Self-citations — citations from articles in the same journal — are removed from the numerator.

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How is the 2-year impact (no self-citations) calculated?

The 2-year impact (no self-citations) for year X equals the citations received in year X to items published in years X-1 and X-2, divided by the number of citable items published in those two years. Self-citations — citations originating from articles published in the same journal — are excluded from the numerator.

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Lancet, The