Comparative analysis of growth law of keratoconus literature in China and abroad and the main influence factors

Abstract:

AIM: To analyze the keratoconus literatures in China and abroad and determine the growthlaw and its major influence factors.

METHODS:As the index word, quantity of literatures of keratoconus was retrieved in PubMed(from January 1, 1911 to November 10, 2013)and CNKI(from January 1, 1960 to November 10, 2013). The literature linear or curve regression analysis was preceded, and the growth law of the literatures and its main influence factors were determined.

RESULTS: Foreign annual cumulative amount of keratoconus literatures showed an increasing trend with the tendency charts of the exponential(y1=0.8824e^0.7937X, R²=0.9533). Domestic annual cumulative amount of keratoconus literatures also showed an increasing trend with the tendency charts of the exponential(y2=0.2441e^1.6073X, R²=0.9957). Ten PubMed core journals in ophthalmology included 1932 literatures, and 10 CNKI core journals in ophthalmology included 409 literatures.

CONCLUSION: The amount of keratoconus literatures in China and abroad show an upward trend, and keratoconus is still a hot spot of research. A major factor affecting the growth of foreign literature of keratoconus is the inherent discipline of its own development, but the major factor affecting the growth of the domestic literature of keratoconus is the environmental condition in which the subject develops.