help for rts -------------------------------------------------------------------------------

Title

rts -- Revised Trauma Score

Version

Version 3.0.

ICDPIC Version 3.0 requires STATA 8.0 or higher. ICDPIC Version 3.0 has been tested in STATA 10 and STATA 11, but the authors believe it should also work without incident in STATA 8 and STATA 9. If you have any problems using ICDPIC Version 3.0 in STATA 8 or STATA 9, please inform the authors.

ICDPIC Version 3.0 may be installed from within STATA using the ssc command. If you installed a previous version of ICDPIC from the SSC archives website using the ssc command, we suggest that you first delete it by typing ssc uninstall icdpic followed by ssc install icdpic. Alternatively, you may use ssc install icdpic, replace. See help for ssc.

If you installed any previous ICDPIC files obtained directly from the authors, please delete them ALL (.ado, .hlp and .dta files) to avoid any conflicts with ICDPIC 3.0 files.

Please enter complete variable names in the ICDPIC Version 3.0 dialog boxes. Do not use abbreviations.

New to Version 3.0 is the addition of a dialog box (.dlg) file associated with each individual ICDPIC Version 3.0 program (.ado) file. To access the ICDPIC dialog box, and all the ICDPIC programs, type: db icdpic. Typing icdpic, as in earlier versions, will still work, but ONLY with icdpic. For example, to access the Revised Trauma Score program directly, type: db rts. Typing rts, as in previous versions, will produce an error.

Fixed in ICDPIC Version 3.0 is the ability to use path\file names containing spaces.

Fixed in ICDPIC Version 3.0 is the ability to run in STATA 11.0.

Fixed in ICDPIC Version 3.0 is a bug that caused the triss program to crash if the rts variable was named anything other than "rts".

New in ICDPIC Version 3.0 (trauma program only) is the ability to choose whether an AIS value of 6 automatically forces an ISS of 75 or to automatically have all AIS values of 6 changed to an AIS value of 5 and then have the ISS calculated normally.

All dialog boxes in ICDPIC Version 3.0 have memory. Each time a dialog box is opened within the same STATA session, it will remember the values last entered.

All dialog boxes in ICDPIC Version 3.0 have the following buttons:

OK executes the program and removes the dialog box from the screen.

SUBMIT executes the program and leaves the dialog box on the screen. Note that if an error message is generated the dialog box may be minimized.

CANCEL removes the dialog box from the screen and does nothing. Clicking on the close icon of the dialog box does the same thing.

HELP leaves the dialog box on the screen and presents the program help file. The HELP button has a question mark on it.

COPY leaves the dialog box on the screen and copies the program command to the clipboard.

RESET resets the values of the controls in the dialog box to their initial state, just as if the dialog box were invoked for the first time. Each time a user invokes a dialog box, its controls will be filled in with the values the user last entered. RESET restores the control values to their defaults. The RESET button has an R on it.

Syntax

db rts

The RTS (Revised Trauma Score) dialog box will open. Follow the instructions.

OR

db icdpic

The ICDPIC dialog box will open. Choose Revised Trauma Score and click OK or Submit. The RTS (Revised Trauma Score) dialog box will open. Follow the instructions.

Description

rts calculates the revised trauma score. The user's data should contain Glasgow Coma Scale (GCS), systolic blood pressure and respiratory rate variables of type integer.

RTS = 0.9368(CGCS) + 0.7326(CBP) + 0.2908(CRR)

where CGCS is a coded value for the Glasgow Coma Scale, CBP is a coded value for systolic blood pressure and CRR is a coded value for respiratory rate.

See also the Options and Remarks sections for IMPORTANT information on, and requirements for, rts.

Options

The user's data may contain an optional inclusion variable. This Boolean variable should be of type byte and take on the values 0 and 1. The value 0 excludes an observation from having the revised trauma score calculated and the value 1 includes the observation in the calculation. This option appears in the first Revised Trauma Score dialog box.

Revised trauma score coefficients found in the second Revised Trauma Score dialog box are the original MTOS weights. If the user has their own database and wishes to calculate their own weights, or use weights provided by others, they need only to substitute those weights in the second Revised Trauma Score dialog box.

Remarks

Revised trauma score will not be calculated if one or more of the GCS, systolic blood pressure, respiratory rate or include variables (if this option is chosen) contain missing values.

rts adds the following variables to a new copy of the user's data stored on disk:

rts: revised trauma score cgcs: coded Glasgow Coma Scale value cbp: coded systolic blood pressure value crr: coded respiratory rate value

Coded values for Glasgow Coma Scale (GCS), systolic blood pressure (BP) and respiratory rate (RR) are found in the table below:

GCS BP RR Coded Value

13-15 >89 10-29 4 9-12 76-89 >29 3 6-8 50-75 6-9 2 4-5 1-49 1-5 1 3 0 0 0

Revised trauma score is rounded to the nearest 0.0001.

rts produces a variable necessary for triss. This variable is rts (revised trauma score). The user may rename this variable, but if he/she intends on running the results of rts through triss, he/she should not delete it.

Examples

None

Authors

David E. Clark, M.D.

Maine Medical Center, Portland, Maine, USA University of Vermont College of Medicine, Burlington, Vermont, USA Harvard Injury Control Research Center, Harvard School of Public Health, Boston, Massachusetts, USA

Correspondence to Dr. Clark, 887 Congress Street, Portland ME 04102 Email: clarkd@mmc.org

Turner M. Osler, M.D.

University of Vermont College of Medicine, Burlington, Vermont, USA

David R. Hahn

Maine Medical Center, Portland, Maine, USA

References

Champion HR, Sacco WJ, Copes WS, Gann DS, Gennarelli TA, Flanagan ME. A revision of the Trauma Score. J Trauma 1989;29:623-629.

Also see

help for triss

help for icdpic

help for rts