To ask the Scottish Executive what the average length of in-patient stay was for a person admitted to hospital with influenza in each year since 1997.
The followingtable contains the mean length of in-patient stay for patients with a diagnosisof influenza for the financial years (ending 31 March) 1997-98 to 2005-06:
Mean Length of In-Patientstay with Principal Diagnosis of Influenza
Financial Year | Mean Length of Stay (Days) |
1997-98 | 7.0 |
1998-99 | 7.1 |
1999-2000 | 7.6 |
2000-01 | 4.6 |
2001-02 | 5.5 |
2002-03 | 4.9 |
2003-04 | 5.3 |
2004-05 | 5.2 |
2005-06 | 4.3 |
Source: Scottish MorbidityRecord SMR01 linked database - in-patient/day case discharge summaries from non-obstetric/non-psychiatricspecialties.
Notes:
Main diagnosis of influenzaidentified using InternationalClassification of Diseases 10th revision (ICD10) codes J10 and J11.
Data is for allNHS hospitals in Scotland.
Although the trend in mean lengthof stay appears to be downward, there is much variability in these data. Much ofthis relates to variations in virus characteristics. For instance, the total numberof cases in 1999 was 555, but only 91 in 2004. Furthermore, different age groupsare more affected in different years. For example, the strain of flu which was prevalentin 2002 seemed to cause more child admissions than adult admissions.