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13 How to diagnose, treat and eliminate racial and ethnic disparities in our healthcare systems
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  1. Daniel Low
  1. University of Washington

Abstract

Background Racial and ethnic disparities exist.

We can stratify processes of care and outcomes by race & ethnicity and language to identify disparities.

Objectives Identify and eliminate disparities in patients having tonsillectomy surgery.

Methods We analyzed three measures, stratified by race & ethnicity and language.

  1. Rate of prophylaxis for post-operative nausea and vomiting – PONV

  2. Rate of PONV

  3. Rate of return to the operating room with 30 days

We used IHI’s improvement methodology – PDSA cycles, SPC charts to close disparity gaps.

Results

  1. Black patients had a lower rate of prophylaxis at our main hospital (77%) compared to Non-Hispanic White patients (90%). At our ambulatory surgery center no disparity existed, the rate of prophylaxis 98-99% across all patients. (figure 1A)

  2. PONV rates were much higher in Black patients (7.3%) at our main hospital compared to Non-Hispanic White patients (3.1%). No disparity existed at our ambulatory surgery center where the rates were 1-2% for all patients. (figure 2A)

  3. The 30-day return to OR rate across our system was 1.4% (figure 3A), the funnel plots revealed disparities for Vietnamese (3.5%), Somali (2.4%) and Spanish speaking (1.8%) patients (figure 3B). English speaking patients had a rate of 1.3%. When stratified by race and ethnicity. We found disparities in outcomes for Asian patients (2.7%), Black patient (2.4%) and Hispanic patients (1.6%). Non-Hispanic white had a rate of 0.95% (figure 3C).

ResultsA rapid series of PDSA cycles followed – annotated in (figure 3A)

  1. 98-100% of all patients now receive PONV prophylaxis (figure 1B).

  2. 3x reduction PONV rates for Black patients (3.6% to 1%), 6x reduction for Hispanic patients (2.4% to 0.3%). (figure 2B)

  3. Reduction in re-operation rate for Asian patients (2.7% to 0%). Rates for black patients and Hispanic patients are unchanged. (figure 3B and 3C)

Conclusions and Implications We can identify and eliminate disparities in treatment process and outcomes.

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