Age (Years)

Patient age in years for each procedure, returned as a continuous variable. Ages less than 2 yo are returned including one decimal place to reflect fractions of year when appropriate.

Maximum returned age is 90 as defined by PHI regulations.

Value |
Value Code |
Definition |

Column Name |
Data Type |

This phenotype returns the patient's age from the dedicated column in the cases file. The phenotype makes the following adjustments before returning a value:

- If the patient age was documented in anythign other than years:
- If the patient's age is in weeks: Divides the age by 52 to get the age in years
- If the age was documented in months: Divides the age by 12 to get age in years

- The maximum age returned in years is 90 as defined by PHI regulations
- For patients <2 years, the age will be returned as a decimal number (eg 16 months = 1.33 years old)
- For patients >2 years, the age will return as a whole number
- If age in years <0, then NULL is returned