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.

st_isBetween(#var1, lowerBound, upperBound);

is less than or equal to

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

is less than

#var3.disable();

is not equal to

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

and

#var3.hideRow();

or

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

a blank value

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

is null

!isNull()

is not null

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

plus

if (#sex == 0){ #var5.style.background='blue';#var5.style.color='white';
}

minus

#var1.style.background = "green";

times

#var1.style.color = "white";

divided by