DDHA 8103 Week 4 Harm Measure Definition Example

Counting Heat Injuries the Same Way at Twelve Clinics: A Reproducible Specification for a Moist Heat Thermal Injury Rate per 1,000 Applications

Student Name

Walden University

DDHA 8103: Advanced Healthcare Quality and Risk Management

Instructor Name

Month Day, Year

Counting Heat Injuries the Same Way at Twelve Clinics: A Reproducible Specification for a Moist Heat Thermal Injury Rate per 1,000 Applications

Why the Measure Needs Writing Down

When a patient at one of Hollins Ford Health's twelve invented therapy clinics went home with heat blisters on his back, division leaders asked a simple question: how often does this happen? Two clinic managers answered it within a day and gave figures that differed by a factor of four. One counted only incident reports that named a burn. The other counted any report mentioning redness after heat, including redness that faded within an hour. Neither was wrong by its own rules, and that is the problem this specification solves. A harm measure earns its place only when a second clinic, or a second analyst, working from identical records, arrives at an identical count. Pronovost et al. (2006) argue that safety measures in health care often fail this test, which leaves organizations unable to tell whether they are improving.

Measure Name and Intent

The measure is the moist heat thermal injury rate. Its intent is to track, by clinic and for the division, how often a superficial moist heat application in clinic is followed by a skin injury attributable to that application. It is an outcome measure. It will be reported monthly and plotted over time, and it will serve as the outcome measure for the improvement work that follows the root cause analysis.

Numerator

The numerator is the number of moist heat applications during the reporting month that were followed by a qualifying thermal injury. A qualifying injury is any of the following at the site of application: blistering; skin loss; a burn diagnosed by any clinician; or redness that is still present at least 24 hours after the application, as reported by the patient or seen by staff. Redness that resolves within 24 hours does not qualify, because brief redness is the expected effect of heat. Each qualifying injury counts once, linked to the application that preceded it. If a patient has two applications in one visit at different sites and one injury, one numerator event is counted.

Denominator

The denominator is the number of moist heat applications delivered in clinic during the reporting month. One application is one pack applied to one body region for one continuous period. The count comes from the flowsheet entry that clinicians complete for each modality, not from charges. Moist heat is bundled into other services for Medicare and many other payers, so several clinics no longer record it as a separate charge, and a charge-based count would undercount applications at exactly those clinics. A flowsheet entry is required for every application under the revised procedure.

Inclusions and Exclusions

Table 1

Inclusions and Exclusions

Every exclusion is listed so that a second analyst can make the same decisions without asking anyone.

Data Sources and How They Are Combined

Injuries come from three sources, because each misses some. Incident reports are the first, but Classen et al. (2011) found that voluntary reporting identifies only a small fraction of the harm that structured review finds, so they cannot stand alone. The second is a skin question added to the start of the next visit after any moist heat application, recorded in the flowsheet: any skin changes where heat was applied last time? A yes triggers a look and, if the injury qualifies, a report. The third is a monthly search of visit notes for the words blister, burn and redness within 7 days of a heat application. An analyst reconciles the three lists by patient and date so each injury is counted once. Patients who do not return within 7 days are a known gap; their share of applications is reported alongside the rate so readers can judge how much the count may be missing.

Calculation, Window and Adjustment

Each month, qualifying injuries are set over applications and scaled to 1,000. Because injuries are rare, the monthly division rate will often be zero, so the measure is also reported as a rolling twelve-month rate and as the number of applications between injuries. No risk adjustment is applied to the rate itself. Instead the measure is stratified by two patient characteristics that the root cause analysis linked to risk: a recorded diagnosis of diabetes or peripheral neuropathy, and age 70 or older. Stratification shows where injuries concentrate without hiding them inside an adjusted figure.

A Worked Example

In one quarter last year, the division delivered 4,410 moist heat applications according to flowsheet entries. Incident reports named one injury. The next-visit skin question and the note search found two more: a patient with blistering who had called the front desk but whose call had not been reported, and a patient with redness still present the following afternoon. The quarterly numerator is therefore three, and the rate is 3 divided by 4,410, multiplied by 1,000, or about 0.68 per 1,000 applications. Using incident reports alone, the same quarter would have shown about 0.23. The difference is the reason the measure uses three sources.

Reproducibility Test

Before the measure goes live, two analysts from different clinics will apply this specification separately to the same three months of records from two clinics and compare their numerators and denominators line by line. Any disagreement will be traced to a sentence in the specification, and that sentence will be rewritten. The measure will be released only when both analysts reach the same counts. The test will be repeated each year, and any change to the flowsheet or the reporting system will trigger a fresh test.

Limitations

The measure depends on staff asking the next-visit skin question, and its value will fall if the question becomes a box clicked without asking. Patients who do not return are undercounted. The 24-hour threshold for redness is a judgment, and a different threshold would give a different count, so the threshold is fixed here and should not drift. And small numbers make monthly clinic rates unstable, which is why rolling rates and run charts, as described by Perla et al. (2011), will be the primary display.

Conclusion

The moist heat thermal injury rate counts qualifying injuries at the application site within 7 days, drawn from three reconciled sources, over flowsheet-recorded applications, per 1,000 applications, stratified by two risk characteristics. Every inclusion, exclusion and threshold is written down, and the measure must pass a two-analyst reproducibility test before it is used. When the next manager asks how often this happens, every clinic will answer with the same number.

References

Classen, D. C., Resar, R., Griffin, F., Federico, F., Frankel, T., Kimmel, N., Whittington, J. C., Frankel, A., Seger, A., & James, B. C. (2011). "Global trigger tool" shows that adverse events in hospitals may be ten times greater than previously measured. Health Affairs, 30(4), 581-589. https://doi.org/10.1377/hlthaff.2011.0190

Perla, R. J., Provost, L. P., & Murray, S. K. (2011). The run chart: A simple analytical tool for learning from variation in healthcare processes. BMJ Quality and Safety, 20(1), 46-51. https://doi.org/10.1136/bmjqs.2009.037895

Pronovost, P. J., Miller, M. R., & Wachter, R. M. (2006). Tracking progress in patient safety: An elusive target. JAMA, 296(6), 696-699. https://doi.org/10.1001/jama.296.6.696