Hematuria grading scale: A new tool for gross hematuria

Joo Yong Lee, Jin Seok Chang, Kyo Chul Koo, Seung Wook Lee, Young Deuk Choi, Kang Su Cho

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objective: To develop a new tool for gross hematuria, the Hematuria Grading Scale (HGS), and evaluate its consistency in assessing hematuria samples. Methods: 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. Results: 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. Conclusion: 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.

Original languageEnglish
Pages (from-to)284-289
Number of pages6
JournalUrology
Volume82
Issue number2
DOIs
Publication statusPublished - 2013 Aug 1

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Hematuria
Confidence Intervals
General Practitioners
Nurse Practitioners
Color
Nurses
Communication

All Science Journal Classification (ASJC) codes

  • Urology

Cite this

Lee, J. Y., Chang, J. S., Koo, K. C., Lee, S. W., Choi, Y. D., & Cho, K. S. (2013). Hematuria grading scale: A new tool for gross hematuria. Urology, 82(2), 284-289. https://doi.org/10.1016/j.urology.2013.04.048
Lee, Joo Yong ; Chang, Jin Seok ; Koo, Kyo Chul ; Lee, Seung Wook ; Choi, Young Deuk ; Cho, Kang Su. / Hematuria grading scale : A new tool for gross hematuria. In: Urology. 2013 ; Vol. 82, No. 2. pp. 284-289.
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abstract = "Objective: To develop a new tool for gross hematuria, the Hematuria Grading Scale (HGS), and evaluate its consistency in assessing hematuria samples. Methods: 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. Results: 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. Conclusion: 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.",
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Lee, JY, Chang, JS, Koo, KC, Lee, SW, Choi, YD & Cho, KS 2013, 'Hematuria grading scale: A new tool for gross hematuria', Urology, vol. 82, no. 2, pp. 284-289. https://doi.org/10.1016/j.urology.2013.04.048

Hematuria grading scale : A new tool for gross hematuria. / Lee, Joo Yong; Chang, Jin Seok; Koo, Kyo Chul; Lee, Seung Wook; Choi, Young Deuk; Cho, Kang Su.

In: Urology, Vol. 82, No. 2, 01.08.2013, p. 284-289.

Research output: Contribution to journalArticle

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T2 - A new tool for gross hematuria

AU - Lee, Joo Yong

AU - Chang, Jin Seok

AU - Koo, Kyo Chul

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AU - Choi, Young Deuk

AU - Cho, Kang Su

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AB - Objective: To develop a new tool for gross hematuria, the Hematuria Grading Scale (HGS), and evaluate its consistency in assessing hematuria samples. Methods: 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. Results: 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. Conclusion: 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.

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