Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea.
Urology. 2013 Aug;82(2):284-9. doi: 10.1016/j.urology.2013.04.048.
To develop a new tool for gross hematuria, the Hematuria Grading Scale (HGS), and evaluate its consistency in assessing hematuria samples.
The HGS was developed on the basis of an evaluation of sample brightness and saturation using a cyan, magenta, yellow, key (black) color model. Thirty hematuria samples were prepared from human blood by diluting with saline using a standard method. Twenty examiners (5 in each group, including laypeople, nurses, general practitioners, and urologists) participated. Each scored 30 hematuria samples using the HGS under the same conditions without communicating with one another. The intraclass correlation coefficient (ICC) was calculated to assess the reliability of the datasets. Questionnaires for usefulness (Q1) and simplicity (Q2) were obtained from all examiners using a 5-point Likert scale.
The ICC for pooled examiner scores showed a high agreement rate (99.7%, 95% confidence interval [CI] 0.996-0.999). ICC values by group were 99.3% (95% CI 0.989-0.997) for laypeople, 98.8% (95% CI 0.980-0.994) for nurses, 99.1% (95% CI 0.984-0.995) for general practitioners, and 99.2% (95% CI 0.987-0.996) for urologists. Mean Q1 and Q2 scores were 4.70 ± 0.66 and 4.30 ± 1.03, respectively, indicating general satisfaction with the HGS among all examiners.
Evaluations of gross hematuria using the HGS were in high agreement among examiners of all types, and all examiners found the HGS simple and easy to use. The HGS should be a helpful tool for assessment and communication of gross hematuria.
开发一种用于肉眼血尿的新工具，即血尿分级量表（HGS），并评估其在评估血尿样本方面的一致性。
HGS 是基于使用青色、品红色、黄色、关键（黑色）颜色模型评估样本亮度和饱和度的基础上开发的。通过用生理盐水稀释人血的标准方法制备 30 个血尿样本。20 名检查者（每组 5 名，包括非专业人员、护士、全科医生和泌尿科医生）参与。每位检查者在相同条件下使用 HGS 对 30 个血尿样本进行评分，彼此之间不进行沟通。计算组内相关系数（ICC）以评估数据集的可靠性。使用 5 分李克特量表从所有检查者处获得有用性（Q1）和简单性（Q2）问卷。
pooled examiner scores 的 ICC 显示出高度的一致性（99.7%，95%置信区间[CI]0.996-0.999）。按组计算的 ICC 值分别为：非专业人员 99.3%（95% CI 0.989-0.997）、护士 98.8%（95% CI 0.980-0.994）、全科医生 99.1%（95% CI 0.984-0.995）和泌尿科医生 99.2%（95% CI 0.987-0.996）。平均 Q1 和 Q2 得分为 4.70±0.66 和 4.30±1.03，表明所有检查者对 HGS 的总体满意度较高。
使用 HGS 评估肉眼血尿，所有类型的检查者之间的评估结果高度一致，所有检查者都认为 HGS 简单易用。HGS 应该是评估和交流肉眼血尿的有用工具。
