ALERT Scale Calculation: Difference between revisions
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'''Y''' = | '''Y''' = | ||
*-3.8390 + (0.1570 x male gender) | *-3.8390 + (0.1570 x male gender) | ||
*+(0.0712 x | *+(0.0712 x [[Charlson Comorbidity Index]]) | ||
*+(0.0532 x | *+(0.0532 x [[#ADLs]] | ||
*-(0.1720 x GCS) | *-(0.1720 x [[Glasgow Coma Scale | Glasgow Coma Scale (GCS)]]) | ||
*+(0.0678 x age) | *+(0.0678 x age) | ||
*-(0.0004 x (age x age) | *-(0.0004 x (age x age) | ||
| Line 19: | Line 19: | ||
Where '''R''' is the risk of bad outcome and the categorical variable gender, is coded female=0 and male=1. | Where '''R''' is the risk of bad outcome and the categorical variable gender, is coded female=0 and male=1. | ||
How to calculate R: | How to calculate R: | ||
*'''R=exp(Y)/1 + exp(Y)''' | *'''R=exp(Y)/1 + exp(Y)''' | ||
*Heart rate, respiratory rate, White Blood cell Count (WBC), systolic Blood Pressure (sBP) - are continuous data | |||
The cut-off probability for '''R''' is 0.088 {{dT| cut off for what? need to tie this together... }} | |||
=== ADLs === | |||
ADL General Collection Information | Activity of Daily Living Score (ADLS)]]) | |||
*'''''' - Activity of Daily Living Score: | |||
**0 - independent | |||
**3 - minor dependence | |||
**6 - major dependence | |||
[[Category:ALERT Scale]] | [[Category:ALERT Scale]] | ||
Revision as of 16:32, 22 December 2018
ALERT Scale Calculation
Binary logistic regression resulted in the following outcome model:
- LN(R/1-R) = Y
Y =
- -3.8390 + (0.1570 x male gender)
- +(0.0712 x Charlson Comorbidity Index)
- +(0.0532 x #ADLs
- -(0.1720 x Glasgow Coma Scale (GCS))
- +(0.0678 x age)
- -(0.0004 x (age x age)
- +(0.0175 x heart rate)
- +(0.0631 x respiratory rate)
- +(0.0289 x white blood cell count)
- -(0.0410 x systolic blood pressure)
- +(0.000121 x (systolic blood pressure x systolic blood pressure)
Where R is the risk of bad outcome and the categorical variable gender, is coded female=0 and male=1.
How to calculate R:
- R=exp(Y)/1 + exp(Y)
- Heart rate, respiratory rate, White Blood cell Count (WBC), systolic Blood Pressure (sBP) - are continuous data
The cut-off probability for R is 0.088
|
cut off for what? need to tie this together... |
ADLs
ADL General Collection Information | Activity of Daily Living Score (ADLS)]])
- ' - Activity of Daily Living Score:
- 0 - independent
- 3 - minor dependence
- 6 - major dependence