三种眼科学期刊引文分析

目的探讨中、美、英三国主办的三种眼科学期刊引文的引用规律及情报吸收能力。方法采用引文计量分析法统计American Journal of Ophthalmology（AJO）、British Journal of Ophthalmology（BJO）与中华眼科杂志（CJO）2005年刊载的论文所引用的参考文献,从引文数量、引文年代、普赖斯指数、自引率、高被引期刊等多方面进行比较分析。结果AJ0、BJO及CJO篇均引文数量分别为12．67、21．31及11．50,AJO、BJO及CJO的普赖斯指数分别为37．12％、33．47％及44．42％,自引率分别为13．39％、7．54％及9．89％,AJO、BJO及CJO分别引用了1140、1487及724种期刊,前13种期刊总被引频次占全部引文的58．82％、49．51％及46．39％。结论AJO、BJO及CJO各自具有不同的特点。BJO篇均引文数较高,涉猎文献范围广,自引率较低,引用文献半衰期较长;AJO引用期刊相对集中,自引率相对较高;CJO引用文献较新,普赖斯指数较高,自引率适中。

Citation analysis of three ophthalmology journals

OBJECTIVE: To find the reference aspects of three ophthalmology journals published in China, the United States and the United Kingdom to discover the characteristics of literature requested by different ophthalmic researchers. METHOD: Citation analysis was used to analyze the references cited in articles published by three different journals, the American Journal of Ophthalmology (AJO), British Journal of Ophthalmology (BJO) and Chinese Journal of Ophthalmology (CJO). Variable parameters include number, types and chronology distribution of the references, Price Index, Self-citing rate and top cited journals of these three journals. RESULTS: The average number of references per article in AJO, BJO and CJO was 12.67, 21.31 and 11.50, respectively. The Price Index was 37.12%, 33.47% and 44.42% in AJO, BJO and CJO, respectively. The self-citing rate was 13.39%, 7.54%, and 9.89% in AJO, BJO and CJO, respectively. There were 1140, 1487 and 724 different journals cited by AJO, BJO and CJO, respectively. The top 13 of them accounted for 58.82%, 49.51%, and 46.39% of all references cited in AJO, BJO and CJO, respectively. CONCLUSIONS: These three journals exhibited unique trends in references cited. BJO has more references per paper than the other two journals and has a lower self-cited rate and longer citing half-life. Percentage of the top 13 journals in references cited in AJO is greater than that in the other two journals and AJO has a higher self-cited rate. While CJO cited more recently published references with a higher Price Index and has a moderate self-cited rate.