Performance indicators in the before and after periods
| Performance indicator | Description | Indicator specification | Number of sources | Value | Unit of measure | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Quantitative | Qualitative | Total | Document | Interview | Before | After | Change | |||
| 1. Surgeries performed | ||||||||||
| Patient inflow | The average number of surgery orders made per week | X | 3 | 1 | 2 | 192 | 183 | −5% | Number of surgery cases | |
| Number of surgeries | Total number of surgical cases performed | 7,888 | 7,470 | −5% | Number of surgeries | |||||
| Number of elective and non-elective surgeries | Elective or non-elective/emergency cases performed (%) included are all inpatient surgical cases excluded are cases performed at separate OR locations | 83% | 83% | 0% | % | |||||
| Surgery time | The sum of surgery times of all surgeries, with surgery time being the time starting when patient positioning and/or skin preparation can begin to when the surgery is completed | 8,845 | 8,604 | −3% | Hours | |||||
| 2. Process quality and control | ||||||||||
| Planned vs realised surgery time | Average % difference between realised and planned surgery time | X | 10 | 6 | 4 | 29% | 31% | 7% | % | |
| Overutilization OR | The total number of operating room days that finished after 4 pm divided by the total number of regular operating room days on which elective surgeries took place | 27% | 26% | −4% | % | |||||
| Number of late ORs | The average number of operating rooms that finish after 4 pm. | 2.01 | 1.96 | −2% | Number of ORs | |||||
| Cancellations | Number of surgeries that were cancelled | 992 | 1863 | 88% | Number of surgeries | |||||
| 3. Variability | ||||||||||
| Variability OR utilization | Standard deviation of OR utilization | X | 9 | 6 | 3 | 19% | 20% | 5% | % | |
| Minimum OR utilization: The lowest OR utilization for an OR on a weekday | 5% | 7% | 40% | % | ||||||
| Maximum OR utilization: The highest OR utilization for an OR on a weekday | 134% | 107% | −20% | % | ||||||
| Variability OR session utilization | Standard deviation of OR session utilization | 7% | 8% | 14% | % | |||||
| Minimum OR utilization: The lowest OR session utilization for an OR on a weekday | 66% | 57% | −14% | % | ||||||
| Maximum OR utilization: The highest OR session utilization for an OR on a weekday | 111% | 100% | −10% | % | ||||||
| Variability bed utilization | Average standard deviation of bed utilization divided by the average bed utilization and minimum and maximum OR utilization | 29 | 29 | 0% | Number of beds | |||||
| Minimum bed utilization | 1 | 1 | 0% | Number of beds | ||||||
| Maximum bed utilization | 172 | 157 | −9% | Number of beds | ||||||
| Variability waiting list | Average standard deviation of waiting list length divided by the average waiting list length | 3.1 | 3.7 | 19% | Weeks | |||||
| Minimum waiting list length | 1 | 1.3 | 30% | Weeks | ||||||
| Maximum waiting list length | 15.9 | 19.3 | 21% | Weeks | ||||||
| 4. Waiting list | ||||||||||
| Waiting list length | Average number of weeks necessary for operating on all patients on the waiting list, given the number of OR sessions allocated to a medical discipline | X | 7 | 5 | 2 | 5.8 | 7 | 21% | Weeks | |
| 5. Resource utilization | ||||||||||
| OR session utilization | The total amount of time surgical patients are present in the OR, divided by the amount of allocated OR session time x 100%. An OR session is a time slots that is allocated to a specific medical discipline on a specific weekday and OR. | X | 5 | 4 | 1 | 87% | 84% | −3% | % | |
| OR utilization | The total amount of time surgical patients are present in the OR during regular working hours between 8 am and 4 pm, divided by the total amount of OR time during these working hours (8 h) | 77% | 75% | −3% | % | |||||
| Bed utilization | The average number of beds used for a patient in a nursing department divided by the number of available beds, for nursing departments A2, N2 and the daycare/Short stay department | 76% | 84% | 11% | % | |||||
| 6. Resource availability | ||||||||||
| Number of beds | The number of beds in nursing departments A2, N2 and the daycare/Short stay department | X | 6 | 4 | 2 | 96 | 83 | −14% | Number of beds | |
| Performance indicator | Description | Indicator specification | Number of sources | Value | Unit of measure | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Quantitative | Qualitative | Total | Document | Interview | Before | After | Change | |||
| Patient inflow | The average number of surgery orders made per week | X | 3 | 1 | 2 | 192 | 183 | −5% | Number of surgery cases | |
| Number of surgeries | Total number of surgical cases performed | 7,888 | 7,470 | −5% | Number of surgeries | |||||
| Number of elective and non-elective surgeries | Elective or non-elective/emergency cases performed (%) included are all inpatient surgical cases excluded are cases performed at separate OR locations | 83% | 83% | 0% | % | |||||
| Surgery time | The sum of surgery times of all surgeries, with surgery time being the time starting when patient positioning and/or skin preparation can begin to when the surgery is completed | 8,845 | 8,604 | −3% | Hours | |||||
| Planned vs realised surgery time | Average % difference between realised and planned surgery time | X | 10 | 6 | 4 | 29% | 31% | 7% | % | |
| Overutilization OR | The total number of operating room days that finished after 4 pm divided by the total number of regular operating room days on which elective surgeries took place | 27% | 26% | −4% | % | |||||
| Number of late ORs | The average number of operating rooms that finish after 4 pm. | 2.01 | 1.96 | −2% | Number of ORs | |||||
| Cancellations | Number of surgeries that were cancelled | 992 | 1863 | 88% | Number of surgeries | |||||
| Variability OR utilization | Standard deviation of OR utilization | X | 9 | 6 | 3 | 19% | 20% | 5% | % | |
| Minimum OR utilization: The lowest OR utilization for an OR on a weekday | 5% | 7% | 40% | % | ||||||
| Maximum OR utilization: The highest OR utilization for an OR on a weekday | 134% | 107% | −20% | % | ||||||
| Variability OR session utilization | Standard deviation of OR session utilization | 7% | 8% | 14% | % | |||||
| Minimum OR utilization: The lowest OR session utilization for an OR on a weekday | 66% | 57% | −14% | % | ||||||
| Maximum OR utilization: The highest OR session utilization for an OR on a weekday | 111% | 100% | −10% | % | ||||||
| Variability bed utilization | Average standard deviation of bed utilization divided by the average bed utilization and minimum and maximum OR utilization | 29 | 29 | 0% | Number of beds | |||||
| Minimum bed utilization | 1 | 1 | 0% | Number of beds | ||||||
| Maximum bed utilization | 172 | 157 | −9% | Number of beds | ||||||
| Variability waiting list | Average standard deviation of waiting list length divided by the average waiting list length | 3.1 | 3.7 | 19% | Weeks | |||||
| Minimum waiting list length | 1 | 1.3 | 30% | Weeks | ||||||
| Maximum waiting list length | 15.9 | 19.3 | 21% | Weeks | ||||||
| Waiting list length | Average number of weeks necessary for operating on all patients on the waiting list, given the number of OR sessions allocated to a medical discipline | X | 7 | 5 | 2 | 5.8 | 7 | 21% | Weeks | |
| OR session utilization | The total amount of time surgical patients are present in the OR, divided by the amount of allocated OR session time | X | 5 | 4 | 1 | 87% | 84% | −3% | % | |
| OR utilization | The total amount of time surgical patients are present in the OR during regular working hours between 8 am and 4 pm, divided by the total amount of OR time during these working hours (8 h) | 77% | 75% | −3% | % | |||||
| Bed utilization | The average number of beds used for a patient in a nursing department divided by the number of available beds, for nursing departments A2, N2 and the daycare/Short stay department | 76% | 84% | 11% | % | |||||
| Number of beds | The number of beds in nursing departments A2, N2 and the daycare/Short stay department | X | 6 | 4 | 2 | 96 | 83 | −14% | Number of beds | |