• 作者：Anthony Jiang ; BS ; Luke A. Ginocchio ; BS ; Andrew B. Rosenkrantz ; MD ; MS ; ^{Andrew.Rosenkrantz@nyumc.org" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Academic radiology ; bibliometrics ; publication ; citation ; h-index
• 刊名：Academic Radiology
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：23
• 期：12
• 页码：1568-1572
• 全文大小：111 K

Methods

Faculty web pages were searched to classify 538 members of the Association of University Radiologists as assistant (m>nm> = 212), associate (m>nm> = 128), or full (m>nm> = 198) professors. Radiologists' publication and citation records were extracted from Scopus to compute the following indices: publication count, citation count, h-index, i-10 index, h_c-index, m-quotient, e-index, and g-index. Analysis of variance, multivariable logistic regression, and receiver operating characteristic curve analysis were performed.

Results

All indices were significantly different among the three groups (m>Pm> ≤.001), progressively increasing with increasing rank (eg, mean publication count of 17, 41, and 128 among assistant, associate, and full professors, respectively; mean citation count of 205, 687, and 3622, respectively; mean h-index of 5, 11, and 27, respectively). At multivariable analysis, the h-index (reflecting publications and citations) was a strong significant independent positive predictor of associate (β=+0.32, m>Pm> <.001) or full professor (β=+0.26, m>Pm> <.001) status, whereas the m-quotient (adjusted h-index that is greater for more rapid publication) was a strong significant independent negative predictor of associate (β=&minus;1.87, m>Pm> = .009) or full professor (β =&minus;4.97, m>Pm> <.001) status. The models exhibited moderate goodness-of-fit (r² = 0.534–0.655; m>Pm> <.001). The model for predicting at least associate professor achieved area under the curve 0.876 (sensitivity 74.6%, specificity 88.8%). The model for predicting full professor achieved area under the curve 0.925 (sensitivity 85.5%, specificity 86.1%).

Conclusion

When controlling for the h-index, more rapid publication, as indicated by the m-quotient, was negatively associated with radiologists' academic rank, indicating the additional influence of career duration in promotions decisions.