Exploratory analysis of the potential for advanced diagnostic testing to reduce healthcare expenditures of patients hospitalized with meningitis or encephalitis

Figures

• 

  Fig 1. Mean inpatient expenditures by type for hospitalized patient episodes for meningitis or encephalitis by patient subgroup, 2010 to 2014. Notes: LOS: length of stay; IP: inpatient; ICU: intensive care unit The first 90 days and the last 90 days are excluded from the 2010 to 2014 period. Expenditure statistics are based on inpatient expenditures for a patient episode, including re-admissions. Mean expenditures for each type of utilization are calculated using all patient episodes, not just the episodes that had that type of expense. The values reported in the figure are the total mean inpatient expenditures, and the error bars indicate the 95% confidence intervals of these estimated means. Source: Authors’ analysis of 2010 to 2014 Truven Health MarketScan Commercial Claims and Encounters Database.

• 

  Fig 2. Percentage of hospitalized patients with meningitis who had inpatient expenditures after the subgroup-defining event, 2010 to 2014. Notes: The first 90 days and the last 90 days are excluded from the 2010 to 2014 period. For patients in Subgroup 4 (HIV-1 or Transplant) and Subgroup 5 (Age < 1 year), the subgroup-defining event day is the same as the initial hospital admission day because these patients could be classified into these subgroups upon admission. The values reported in the figure are the estimated percentages, and the error bars indicate the 95% confidence intervals of those estimates. Source: Authors’ analysis of 2010 to 2014 Truven Health MarketScan Commercial Claims and Encounters Database.

• 

  Fig 3. Percentage of patients with encephalitis who had inpatient expenditures after the subgroup-defining event, 2010 to 2014. Notes: The first 90 days and the last 90 days are excluded from the 2010 to 2014 period. For patients in Subgroup 4 (HIV-1 or Transplant) and Subgroup 5 (Age < 1 year), the subgroup-defining event day is the same as the initial hospital admission day because these patients could be classified into these subgroups upon admission. The values reported in the figure are the estimated percentages, and the error bars indicate the 95% confidence intervals of those estimates. Source: Authors’ analysis of 2010 to 2014 Truven Health MarketScan Commercial Claims and Encounters Database.

• 

  Fig 4. Mean inpatient healthcare expenditures remaining after the subgroup-defining event day for patients with meningitis, 2010 to 2014. Notes: The first 90 days and the last 90 days are excluded from the 2010 to 2014 period. For patients in Subgroup 4 (HIV-1 or Transplant) and Subgroup 5 (Age < 1 year), the subgroup-defining event day is the same as the initial hospital admission day because these patients could be classified into these subgroups upon admission. The values reported in the figure are the estimated means, and the error bars indicate the 95% confidence intervals of those estimates. Source: Authors’ analysis of 2010 to 2014 Truven Health MarketScan Commercial Claims and Encounters Database.

• 

  Fig 5. Mean inpatient healthcare expenditures remaining after the subgroup-defining event day for patients with encephalitis, 2010 to 2014. Notes: The first 90 days and the last 90 days are excluded from the 2010 to 2014 period. For patients in Subgroup 4 (HIV-1 or Transplant) and Subgroup 5 (Age < 1 year), the subgroup-defining event day is the same as the initial hospital admission day because these patients could be classified into these subgroups upon admission. The values reported in the figure are the estimated means, and the error bars indicate the 95% confidence intervals of those estimates. Source: Authors’ analysis of 2010 to 2014 Truven Health MarketScan Commercial Claims and Encounters Database.