Ramsdell Robert, Lerman Jerrold, Pickhardt Donald, Feldman Doron, Foster James, Houle Timothy T
Department of Anesthesiology, Women and Children's Hospital of Buffalo, Buffalo, NY 14222, USA.
Anesth Analg. 2009 Jan;108(1):105-10. doi: 10.1213/ane.0b013e31818f0e89.
The Science Citation Index "Journal Impact Factor" (JIF) is widely used to assess journal quality and prestige. The JIFs for the specialty anesthesia are reported annually, however, the impact factors (IFs) for subspecialties in those journals have not been reported. Therefore, we compared the IFs of pediatric anesthesia (Ped IFs) and pain (Pain IFs) articles from four anesthesia journals for two epochs.
An article-by-article manual search for "source" pediatric anesthesia and pain articles published in 1998, 1999, 2003, and 2004 in Anesthesiology, Anesthesia & Analgesia, British Journal of Anaesthesia, and Canadian Journal of Anesthesia was performed. The citations for each of these articles in each of the years were surveyed in the ISI Web of Science database. Ped IFs and Pain IFs for the 2000 and 2005 epochs were calculated and compared with the JIF from which they were derived and to those of the journal, Pediatric Anesthesia.
Ped IFs for the four journals in 2005 exceeded those in 2000, whereas the Pain IFs were unchanged. For both the Ped IFs and the Pain IFs, there was a significant effect of the journal. The Pain IFs were 70% greater than the Ped IFs.
Ped IFs were consistently less than the JIFs in which they were published and the Pain IFs, except for the British Journal of Anaesthesia 2005 in the latter case. The numbers of citations of pediatric anesthesia articles were greater in journals with greater IFs. The implications of subspecialty IFs warrant further consideration.
科学引文索引“期刊影响因子”（JIF）被广泛用于评估期刊质量和声誉。麻醉专业的JIF每年都会公布，然而，这些期刊中学科分支的影响因子（IFs）尚未见报道。因此，我们比较了两个时期内四种麻醉学期刊中儿科麻醉（Ped IFs）和疼痛（Pain IFs）文章的IFs。
逐篇手动检索1998年、1999年、2003年和2004年发表在《麻醉学》《麻醉与镇痛》《英国麻醉学杂志》和《加拿大麻醉学杂志》上的“源”儿科麻醉和疼痛文章。在科学网数据库中调查这些文章每年的被引情况。计算2000年和2005年时期的Ped IFs和Pain IFs，并将其与从中得出这些数据的JIF以及《儿科麻醉》杂志的IFs进行比较。
2005年四种期刊的Ped IFs超过了2000年，而Pain IFs没有变化。对于Ped IFs和Pain IFs，期刊都有显著影响。Pain IFs比Ped IFs高70%。
Ped IFs始终低于发表它们的JIFs以及Pain IFs，后者中《英国麻醉学杂志》2005年的情况除外。IFs较高的期刊中儿科麻醉文章的被引次数更多。学科分支IFs的意义值得进一步探讨。
