StudyTRAX Methods

age(#birth);

Gives the current age where #birth is the data export name for the birth date variable

ageAsOf(#birth, #diagnosis);

Gives the age at the date entered for variable #diagnosis

st_calculateBmi(true, #hCm, #wKgs);

Calculates BMI with #hCm height in centimeters and #wKgs weight in kilograms.

st_calculateBmi(false, #hInch, #wLbs);

Calculates BMI with #hInch height in inches and #wLbs weight in pounds.

st_round(#var1, numberOfDecimalPlaces);

Returns the value of var1 rounded to the number of decimal places indicated.

#var1.enable(#var2 == 3);

Enable #var1 if #var2 is equal to 3; if #var2 is not equal to 3, then variable #var1 will be disabled. Or use true or false in the parentheses.

#var3.disable();

Disable #var3

#var1.show(#var2 == 3);

Show #var1 if #var2 is equal to 3; if #var2 is not equal to 3, then variable #var1 will not display. Or use true or false in the parentheses.

#var3.hide();

Hide #var3

#var3.showVariableGroup(#var4 == 1);

Show the variable group containing variable #var3 if #var4 is equal to 1; if #var4 is not equal to 1, then the variable group containing variable #var3 will not be displayed. Or use true or false in the parentheses.

if (#bgl < 70) #result.setValue(0);

Sets the value of #result to 0 if variable #bgl is less than 70