Saunders K J, Pilgrim C A, Pennypacker H S
Cancer. 1986 Dec 1;58(11):2531-7. doi: 10.1002/1097-0142(19861201)58:11<2531::aid-cncr2820581128>3.0.co;2-j.
Two experiments were conducted to assess the relative thoroughness of three search patterns for breast self-examination (BSE). Experiment 1 compared the commonly taught concentric circles (CC) pattern to a new pattern composed of vertical strips (VS). Experiment 2 compared a radial spoke (RS) pattern to the VS pattern. Twenty-eight female subjects participated in each experiment. Each learned BSE and was post-tested using the two patterns under investigation; order of presentation was counterbalanced. BSE thoroughness was measured with the aid of a numbered grid projected on the subject's chest allowing an observer to mark each square of the grid palpated on a congruently gridded scoresheet. The percentage of the cone of the breast and of the totality of the breast tissue examined was calculated for each exam. Experiment 1 showed that the VS pattern engendered more thorough coverage of the total breast area (64.4% vs. 38.9%) and of the cone (64.1% vs. 48.7%). The results of Experiment 2 were similar: the VS pattern produced more thorough coverage of the total area (67.9% vs. 44.7%) and of the cone (70.3% vs. 57.2%). All differences were statistically reliable. Of 112 intrasubject comparisons involving the VS pattern, it produced more thorough coverage in all but nine. These results indicate that the VS pattern is the pattern of choice for maximally effective BSE.
进行了两项实验，以评估三种乳房自我检查（BSE）搜索模式的相对彻底程度。实验1将常用的同心圆（CC）模式与由垂直条带（VS）组成的新模式进行了比较。实验2将放射状辐条（RS）模式与VS模式进行了比较。每项实验有28名女性受试者参与。每位受试者学习了乳房自我检查，并使用正在研究的两种模式进行了测试后测；呈现顺序进行了平衡处理。借助投射在受试者胸部的编号网格来测量乳房自我检查的彻底程度，以便观察者在同样有网格的计分表上标记触诊的每个网格方块。计算每次检查中乳房圆锥部分和整个乳房组织被检查的百分比。实验1表明，VS模式对整个乳房区域（64.4%对38.9%）和乳房圆锥部分（64.1%对48.7%）的覆盖更彻底。实验2的结果类似：VS模式对总面积（67.9%对44.7%）和乳房圆锥部分（70.3%对57.2%）的覆盖更彻底。所有差异在统计学上都是可靠的。在涉及VS模式的112次受试者内部比较中，除了9次外，VS模式的覆盖更彻底。这些结果表明，VS模式是实现最有效乳房自我检查的首选模式。
