阿拉斯加州集市上的高度特异性照片筛查。有效的阿拉斯加盲童发现摄影及解读。
Highly specific photoscreening at the Alaska State Fair. Valid Alaska Blind Child Discovery photography and interpretation.
作者信息
Arnold Robert W
机构信息
Pediatric Ophthalmology and Strabismus Ophthalmic Associates, 542 West Second Avenue, Anchorage, Alaska 99501-2242, USA.
出版信息
Alaska Med. 2003 Apr-Jun;45(2):34-40.
During the Alaska State Fair, from 1999 through 2001, experienced MTI photoscreeners from the District 49-A Lions Club screened 1844 children as a part of the Alaska Blind Child Discovery. Physician interpretation produced the following recommendations: normal 93.8%, "normal +" 3.4%, "positive" 2.7% and inconclusive 0.2%. Extrapolating from 53 confirmatory follow-up exams estimates the specificity of this screening (true negatives/all normal follow-up exams) from 97% to 100%, with a positive predictive value (true positive/all positive screenings) greater than 90%. High specificity increases the cost-effectiveness of screening. We derived "ABCD-Specificity" equals true negatives/(exam negatives plus inconclusives). In 2002, an additional 655 children were screened yielding 22 "positive" (3.4%), 28 N+ (4.3%), 605 "normal" (92.4%) and no "inconclusive." This brings the total ABCD State Fair Effort to 2499 screened with 2.8% "positive," 3.6% N+, 93.4% "normal" and only 0.12% "inconclusive."
在1999年至2001年阿拉斯加州博览会上，来自第49 - A区狮子会的经验丰富的MTI照片筛查人员对1844名儿童进行了筛查，作为阿拉斯加盲童发现项目的一部分。医生解读后给出了以下建议：正常93.8%，“正常+”3.4%，“阳性”2.7%，不确定0.2%。从53次确认性后续检查推断，该筛查的特异性（真阴性/所有正常后续检查）估计在97%至100%之间，阳性预测值（真阳性/所有阳性筛查）大于90%。高特异性提高了筛查的成本效益。我们得出“ABCD特异性”等于真阴性/（检查为阴性加上不确定）。2002年，又对655名儿童进行了筛查，结果有22名“阳性”（3.4%），28名“正常+”（4.3%），605名“正常”（92.4%），且无“不确定”情况。这样，阿拉斯加州博览会的ABCD筛查项目总共筛查了2499名儿童，其中“阳性”占2.8%，“正常+”占3.6%，“正常”占93.4%，“不确定”仅占0.12%。
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