Oetzmann von Sochaczewski Christina, Muensterer Oliver J
Klinik und Poliklinik für Kinderchirurgie, Universitätsmedizin Mainz, Mainz, Germany.
Front Pediatr. 2020 Apr 22;8:152. doi: 10.3389/fped.2020.00152. eCollection 2020.
Research output of once-leading countries in surgical journals is decreasing despite an overall increase of scientific publications by 8% per year. We aimed to assess research outputs of German, Dutch, and Israeli pediatric surgeons in dedicated pediatric surgical journals in order to get insight into trends in pediatric surgical research. We collected bibliographic information on all original articles in the , and in 1985-1988, 2000-2003, and 2015-2018 that had a German, Dutch or Israeli last author from a department of pediatric surgery. Citation counts were obtained from the Web of Science. Research output of German pediatric surgery decreased from 19 manuscripts in 1988 (0.1/surgeon/year) to eight manuscripts in 2017 (0.02/surgeon/year), whereas those of the Netherlands increased from two manuscripts in 1985 (0.08/surgeon/year) to 12 manuscripts in 2016 (0.3/surgeon/year). The declining German research output negatively correlated with increasing numbers of specialist pediatric surgeons for total (τ = -0.54; = 0.0156) and manuscripts per surgeon (τ = -0.79; = 0.0001), resulting in a negative trend over time (χ = 11.845, = 0.0006). Analyses of citation patterns revealed that manuscripts by Dutch pediatric surgeons and those published in the had higher absolute citation counts than the reference category of a German manuscript in the . Age-corrected citation rates resembled this result by increasing from 2000 to 2003 ( = 0.799, range: 0-3.368) to 2015-2018 ( = 2, range: 0-5) ( = 0.035) for the Netherlands. Assessment of manuscript types revealed that the proportion of prospective studies increased in the German sample (χ = 5.05, = 0.0246), but remained the lowest among the comparators. Surprisingly, the proportion of non-clinical manuscripts from Germany also increased over time (χ = 4.001, = 0.0455), whereas it remained constant in both the Netherlands and Israel. German pediatric surgical research output decreased in the last thirty years based on the sample of dedicated pediatric surgical journals, while Dutch productivity increased. Citation rates-as a measure of scientific impact-were associated and increased with Dutch manuscripts. The involved factors remain to be determined and whether this represents a shift toward other journals or mirrors a general development.
尽管科学出版物总体上以每年8%的速度增长，但曾经在外科期刊领域领先的国家的研究产出却在下降。我们旨在评估德国、荷兰和以色列儿科外科医生在专门的儿科外科期刊上的研究产出，以便深入了解儿科外科研究的趋势。我们收集了1985 - 1988年、2000 - 2003年以及2015 - 2018年发表在《》《》和《》上的所有原创文章的书目信息，这些文章的最后一位作者来自儿科外科部门，且作者为德国人、荷兰人或以色列人。引用次数从科学网获取。德国儿科外科的研究产出从1988年的19篇稿件（0.1篇/外科医生/年）降至2017年的8篇稿件（0.02篇/外科医生/年），而荷兰的研究产出则从1985年的2篇稿件（0.08篇/外科医生/年）增至2016年的12篇稿件（0.3篇/外科医生/年）。德国研究产出的下降与儿科外科专科医生总数的增加（τ = -0.54；P = 0.0156）以及每位外科医生的稿件数量增加（τ = -0.79；P = 0.0001）呈负相关，导致随时间呈负趋势（χ = 11.845，P = 0.0006）。对引用模式的分析表明，荷兰儿科外科医生撰写的稿件以及发表在《》上的稿件的绝对引用次数高于《》中德国稿件的参考类别。经年龄校正的引用率也呈现类似结果，荷兰从2000年至2003年（P = 0.799，范围：0 - 3.368）到2015 - 2018年（P = 2，范围：0 - 5）有所增加（P = 0.035）。对手稿类型的评估显示，德国样本中前瞻性研究的比例有所增加（χ = 5.05，P = 0.0246），但在比较对象中仍为最低。令人惊讶的是，德国非临床稿件的比例也随时间增加（χ = 4.001，P = 0.0455），而在荷兰和以色列保持不变。基于专门的儿科外科期刊样本，德国儿科外科研究产出在过去三十年中下降，而荷兰的产出增加。作为科学影响力衡量指标的引用率与荷兰稿件相关且有所增加。其中涉及的因素仍有待确定，以及这是否代表向其他期刊的转移或反映了一种普遍趋势。
