de Oliveira Irismar Reis, Santos-Jesus Rogério, Po Alain Li Wan, Poolsup Nalinee
Department of Neuropsychiatry, Faculty of Medicine, Federal University of Bahia, CEP 40110-100, Vale do Canela, Salvador-Bahia, Brazil.
Fundam Clin Pharmacol. 2003 Aug;17(4):471-2. doi: 10.1046/j.1472-8206.2003.00180.x.
A method has been proposed for extracting numerical data when only graphical results are presented. Reports with both graphical and tabular data were identified and the graphs were electronically scanned. The coordinates of each point were read using the cross-hair facility of Adobe Photoshop 7.0. To improve the precision of these coordinates, each point was read at 1600% magnification. The agreement between the observers was almost perfect (R > 0.99). The proposed method makes possible use of data in meta-analyses that, would otherwise be discarded.
已经提出了一种在仅呈现图形结果时提取数值数据的方法。识别出同时包含图形和表格数据的报告，并对图形进行电子扫描。使用Adobe Photoshop 7.0的十字线工具读取每个点的坐标。为提高这些坐标的精度，每个点都在1600%的放大倍率下读取。观察者之间的一致性几乎完美（R>0.99）。所提出的方法使得在荟萃分析中能够利用那些否则将被丢弃的数据。
