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== review needed ==
Calculated by [[Function LOS()]] / [[Function LOS_int()]].
{{TT | this article has evil twins, need to reconcile, search for LOS Ttenbergen 21:13, 2014 October 23 (CDT)}}
{{Todo
| who = Tina 
| question = _wiki_housekeeping
* need to integrate this better and clean things out; also should make sure that queries that deal with LOS use [[Function LOS()]]
| todo_added = 2022-02-10
| todo_action = 2022-03-01
}}


{{Discuss |
* This needs to be updated for [[Accept DtTm]] and [[Arrive DtTm]], and then for [[Service tmp entry]] and [[Boarding Loc]] instead.
}}
See: [[:Category: Length of stay]]


For our purposes, '''LOS (length of stay)''' is the combined number of '''days''' a patient spent on units on which we collect data. It is '''not''' the amount of time spent in the hospital as we don't have access to hospital admit/discharge data.  
For our purposes, '''LOS (length of stay)''' is the combined number of '''days''' a patient spent on units on which we collect data. It is '''not''' the amount of time spent in the hospital as we don't have access to hospital admit/discharge data.  
Depending on the type of LOS, the summary statistics namely, Mean, Median, Sum or Total are included in our [[monthly report|monthly]], [[quarterly report|quarterly]] and [[annual report|annual]] reports.
{{Discuss | Those links point to collections of reports which isn't helpful, should be individual reports. And they don't need to be listed here at all if the report pages themself link to this page properly.
}}


* General definition of LOS = difference between the start datetime and end datetime where start datetime and end datetime definitions vary depending on the type of LOS.
Depending on the type of LOS, the summary statistics namely, Mean, Median, Sum or Total are included in our various [[Reports]]; see the reports pages or the various LOS pages for details.


''For example'':
See also: [[:Category: Length of stay]]
* Start Date/Time: 20 May 2008 11:30
* End  Date/Time: 21 May 2008 17:45
* LOS = 1.260  (3 decimal digit accuracy is used for individual patients, 1 digit for averages)


== different kinds of LOSs ==
== different kinds of LOSs ==
*Dr. Allan Garland and Julie met March 12, 2014 and identifed the different types of LOS currently calculated and reported as well as assigned a name to each one accordingly.  
*Dr. Allan Garland and Julie met March 12, 2014 and identifed the different types of LOS currently calculated and reported as well as assigned a name to each one accordingly.  


===LOS_Record===
=== [[LOS Per Service]] ===
* refers as the Length of Stay (LOS) per record
**Before Oct 1, 2020 - a record is defined as an admission in specific Internal Medicine ward or  Critical Care Unit as shown in [[Site_and_Location_table]]
**Starting Oct1, 2020 - a record  for Critical Care, see [[Definition of a Critical Care Laptop Admission]] and a record for Internal Medicine, see [[Definition of a Medicine Laptop Admission]].
* LOS is simply calculated as the difference between the End Date and time  and Start Date and time of stay.
** Start Date  and time is defined by either of these fields:
*** [[Accept DtTm]]
***  [[Arrive DtTm]] 
*** '''first Service Start DtTm''', see  [[Service_tmp_entry]] and is the same as the [[Accept DtTm]]
** End Date and time is defined by the [[Dispo DtTm]]
* Internal Medicine admission  (at HSC, STB and Grace) and  Critical Care units (at HSC and Grace) use the [[Accept DtTm]]


===LOS_Cum_Wards_Hosp===
=== [[LOS Per Record]] ===
 
=== [[LOS per Location]] ===
 
=== [[LOS Medicine per hospital admission]] ===
* refers as Within Hospital Medicine Ward Cumulative LOS  
* refers as Within Hospital Medicine Ward Cumulative LOS  
** this is the sum of all Medicine wards' LOS_Record within one Hospital admission per hospital. It is important to determine correctly the different wards the patient stayed within a hospital admission and this is done by using the time gaps between records and/or the locations the patient came from and went to. If a patient stayed in more than one Medicine wards during his hospital admission until he left the hospital, then all his wards' LOS_Record were added.  
** this is the sum of all Medicine wards' [[LOS Per Record]] within one Hospital admission per hospital. It is important to determine correctly the different wards the patient stayed within a hospital admission and this is done by using the time gaps between records and/or the locations the patient came from and went to. If a patient stayed in more than one Medicine wards during his hospital admission until he left the hospital, then all his wards' [[LOS Per Record]] were added.  
**The summary reports  separate those who left the hospital or died  and those who went to another service  within the hospital.
**The summary reports  separate those who left the hospital or died  and those who went to another service  within the hospital.
{{Discuss | who = Julie | question =
 
* would this be simply LOS per profile now that we do [[PatientFollow Project]]? Or would you have linked together e.g. a med pt prior to ICU/un-collected ward stay and then again after?
* This can be redefined as the sum of all Medicine [[LOS Per Record]] per [[Visit Admit DtTm]] and [[Person ID]].
}}
{{Discuss | who = Julie | question =
* is this [[LOS Medicine per hospital admission]]?
}}


===LOS_Elapse_Ward1_Hosp===
===LOS_Elapse_Ward1_Hosp===
This is not currently being reported anywhere.
*refers to the length of stay from the FIRST ward admission until the last discharge date during one hospital admission per hospital.  
*refers to the length of stay from the FIRST ward admission until the last discharge date during one hospital admission per hospital.  
**First, identify the FIRST ward the patient stayed and the last ward or ICU unit the patient stayed during a given hospital admission per hospital.
**First, identify the FIRST ward the patient stayed and the last ward or ICU unit the patient stayed during a given hospital admission per hospital.
Line 53: Line 40:
**The summary reports  separate those who left the hospital or died  and those who went to another service  within the hospital.
**The summary reports  separate those who left the hospital or died  and those who went to another service  within the hospital.


{{DJ |
* This can be redefined as as "first MEDICINE [[Service tmp entry]] until last [[Dispo DtTm]] per [[Visit Admit DtTm]]" ?
* Is this still used? If so, can we re-define it as "first [[Service tmp entry]] until last [[Dispo DtTm]] per [[Visit Admit DtTm]]" ?
}}


===LOS_ICU_Region===
===LOS_ICU_Region===
This is not currently being reported anywhere.
*refers to the length of continuous stay in one or more ICU on same or different hospitals in the region  
*refers to the length of continuous stay in one or more ICU on same or different hospitals in the region  
**First, identify  the patient who had tranferred to another ICU/OR/Recovery area on same of different hosp within 48 hours and consider their ICU stays as continuous ICU stay.
**First, identify  the patient who had transferred to another ICU/OR/Recovery area on same of different hosp within 48 hours and consider their ICU stays as continuous ICU stay.
**Then calculate the difference between the Discharge Date of the last ICU stay and the  Admit Date of the First ICU stay.
**Then calculate the difference between the Discharge Date of the last ICU stay and the  Admit Date of the First ICU stay.
**The summary reports include all patients with continuous ICU stay.
**The summary reports include all patients with continuous ICU stay.


=== See also ===
Can be defined as the sum of all ICU [[LOS Per Record]] that have less than 48hrs between the previous [[Dispo DtTm]] and the next admit dttm, per [[Person_ID]].
{{Discuss | who = Julie | question = [[LOS Medicine per hospital admission]] and [[LOS Medicine per ward stay]] may duplicate content above. Do they? If we ever split these out into reporting documentation indicator pages we will need to make sure these are not duplicated. }}


== Legacy ==
== Legacy ==

Latest revision as of 12:34, 2022 December 29

Calculated by Function LOS() / Function LOS_int().

_wiki_housekeeping

  • need to integrate this better and clean things out; also should make sure that queries that deal with LOS use Function LOS()
  • added: 2022-02-10
  • action: 2022-03-01
  • Cargo


  • Categories


For our purposes, LOS (length of stay) is the combined number of days a patient spent on units on which we collect data. It is not the amount of time spent in the hospital as we don't have access to hospital admit/discharge data.

Depending on the type of LOS, the summary statistics namely, Mean, Median, Sum or Total are included in our various Reports; see the reports pages or the various LOS pages for details.

See also: Category: Length of stay

different kinds of LOSs

  • Dr. Allan Garland and Julie met March 12, 2014 and identifed the different types of LOS currently calculated and reported as well as assigned a name to each one accordingly.

LOS Per Service

LOS Per Record

LOS per Location

LOS Medicine per hospital admission

  • refers as Within Hospital Medicine Ward Cumulative LOS
    • this is the sum of all Medicine wards' LOS Per Record within one Hospital admission per hospital. It is important to determine correctly the different wards the patient stayed within a hospital admission and this is done by using the time gaps between records and/or the locations the patient came from and went to. If a patient stayed in more than one Medicine wards during his hospital admission until he left the hospital, then all his wards' LOS Per Record were added.
    • The summary reports separate those who left the hospital or died and those who went to another service within the hospital.

LOS_Elapse_Ward1_Hosp

This is not currently being reported anywhere.

  • refers to the length of stay from the FIRST ward admission until the last discharge date during one hospital admission per hospital.
    • First, identify the FIRST ward the patient stayed and the last ward or ICU unit the patient stayed during a given hospital admission per hospital.
    • Then calculate the difference between the LAST Discharge Date and the First Admit Date as the elapse LOS.
    • If the patient has prior stay in ICU before the first ward stay, the prior ICU stay is not included.
    • The summary reports separate those who left the hospital or died and those who went to another service within the hospital.

LOS_ICU_Region

This is not currently being reported anywhere.

  • refers to the length of continuous stay in one or more ICU on same or different hospitals in the region
    • First, identify the patient who had transferred to another ICU/OR/Recovery area on same of different hosp within 48 hours and consider their ICU stays as continuous ICU stay.
    • Then calculate the difference between the Discharge Date of the last ICU stay and the Admit Date of the First ICU stay.
    • The summary reports include all patients with continuous ICU stay.

Can be defined as the sum of all ICU LOS Per Record that have less than 48hrs between the previous Dispo DtTm and the next admit dttm, per Person_ID.

Legacy

Short stay

LOS vs TISS LOS

  • LOS vs TISS LOS - TISS76-2 hour rule used to mean that # of TISS days might be different than LOS. This is no longer the case as of TISS28.

Related Articles

Related articles:
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