IS there any way we can calculate the age based on the DOB

[Ganesan Murali]

Hi IS there any way we can calculate the age ( based on the system date – DOB ) PID-7 value and put it PID-10 ?

Thanks in advance.

Topic

[Max Drown (Infor)]

Check out the tcl clock command.

-- Max Drown (Infor)

[Ganesan Murali]

Pls enlighten me how too use the clock command and get the age based on PID-7 in a HL7 message?

[Keith McLeod]

set dob 19550405073000

regsub — {(d{8})(d*)} $dob {1 2} dob

set age_seconds [expr [clock scan now]-[clock scan $dob]]

set age_years [expr $age_seconds/86400/366]

echo $age_years

If you want to take this to a more exact, you may need to adjust your calculation of the variable age_seconds.  The clock scan command returns the number of seconds from I beleive sometime in 1969.  Not sure I have to check each time.

[Keith McLeod]

If you are just checking for greater or less than an age you can do something like:

set dob 19550405073000

regsub — {(d{8})(d*)} $dob {1 2} dob

if {[clock scan $dob] > [clock scan “30 years ago”]} {

# do something amazing here, the person is under 30 years of age

} else {

# They are 30 or over

}

[Chris Williams]

This will work for most patients. Depending on your enviornment, the clock function may not process dates prior to Jan 1, 1902.

[David Barr]

Keith McLeod wrote:

set dob 19550405073000

regsub — {(d{8})(d*)} $dob {1 2} dob

set age_seconds [expr [clock scan now]-[clock scan $dob]]

set age_years [expr $age_seconds/86400/366]

echo $age_years

I think that patients over 68 years old will have lived more than 2^31 seconds and overflow a signed integer. On TCL 8.5 this wouldn’t be a problem, but Cloverleaf is still on TCL 8.4 and age_seconds will be a negative number. I had to do something like this:

Code:

return [expr ([clock seconds]/(24*60*60)-[clock scan $dob]/(24*60*60))/365.25]

[Joe Grathoff]

Adapted this to an Xlate TCL Fragment to calculate whole years of age.  Thanks for Posts.

regsub — {(d{8})(d*)} $xlateInVals {1 2} dob

set age_years [expr ([clock seconds]/(24*60*60)-[clock scan $dob]/(24*60*60))/365.25]

set xlateOutVals [expr {int($age_years)}]

echo Patient age is $xlateOutVals years.

[Russ Ross]

If you dont have cloverleaf 6+ and TCL 8.5, there is another approach by Brandon Grudt at this URL to get around the 1902 clock scan problem:

<a href="https://usspvlclovertch2.infor.com/viewtopic.php?t=6815&#8243; class=”bbcode_url”>https://usspvlclovertch2.infor.com/viewtopic.php?t=6815

Russ Ross
RussRoss318@gmail.com

[Author]

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