Mortality Indicators

Question 1

Measuring mortality

Answer 1

1. Crude mortality rate
2. Hospital standardised mortality ratio (HSMR)
3. Summary hospital mortality indicator (SHMI)

Question 2

Crude Mortality Rate

Answer 2

Number of deaths that occurred/number of admission to a healthcare provider (specific time interval) X 100

Question 3

HSMR

Answer 3

Based on

• Hospital Episodic Statistics (HES)
• Secondary Uses Service Data (SUS)
• Commissioning Datasets (CDS)

Expected number of deaths (within 30 days of admission)/actual number of deaths x 100

• National average is 100
• 99.8% confidence intervals used

Question 4

HSMR variation

Answer 4

• Standard of care
• Coding
• Community provision

Question 5

SHMI

Answer 5

• From all admissions to a secondary care organisation
• Based against the previous 3 year’s national data
• Includes all deaths at 30 days not just those in hospitals
• Expected:actual deaths
• National average is 1

Question 6

5 factors standardise SHMI

Answer 6

1. Primary diagnosis
2. Admission type
3. Co-morbidities (charlson index)
4. Age
5. Sex