Higham J M, O'Brien P M, Shaw R W
Academic Department of Obstetrics and Gynaecology, Royal Free Hospital, Hampstead, London.
Br J Obstet Gynaecol. 1990 Aug;97(8):734-9. doi: 10.1111/j.1471-0528.1990.tb16249.x.
Objective menstrual blood loss measurements (in ml) were compared with the score obtained from a pictorial blood loss assessment chart (PBAC) which took into account the degree to which each item of sanitary protection was soiled with blood as well as the total number of pads or tampons used. Twenty eight women used the chart during 55 menstrual cycles and a single observer assessed 122 cycle collections in a similar manner. A pictorial chart score of 100 or more, when used as a diagnostic test for menorrhagia, was found to have a specificity and sensitivity of greater than 80%. Demonstration of the relation between self assessed pictorial chart scores and the objective measurement of blood loss enables us to provide a simple, cheap and reasonably accurate method of assessing blood loss before embarking upon treatment.
将客观的月经失血量测量值（以毫升为单位）与通过图片式失血评估图（PBAC）获得的分数进行比较，该评估图考虑了每片卫生用品被血液弄脏的程度以及使用的卫生巾或卫生棉条的总数。28名女性在55个月经周期中使用了该评估图，一名观察者以类似方式评估了122次周期的收集情况。当图片式评估图分数为100或更高时，用作月经过多的诊断测试，其特异性和敏感性均大于80%。证明自我评估的图片式评估图分数与失血客观测量之间的关系，使我们能够在开始治疗前提供一种简单、廉价且相当准确的失血评估方法。
