Other anti-hypertensive medications — is_other_antiHTN

This function checks if a given medication for a CHMS respondent belongs to another anti-hypertensive drug class. The identification is based on the Anatomical Therapeutic Chemical (ATC) code of the medication and the time when the medication was last taken.

Usage

is_other_antiHTN_med(MEUCATC, NPI_25B)

Arguments

MEUCATC: A character vector representing the Anatomical Therapeutic Chemical (ATC) code of the medication.
NPI_25B: An integer representing the CHMS response for the time when the medication was last taken. 1 = Today, 2 = Yesterday, 3 = Within the last week, 4 = Within the last month, 5 = More than a month ago, 6 = Never taken

Value

A numeric, 1 if medication is in another anti-hypertensive drug class and 0 if it is not.

Details

This function uses the startsWith function to identify other anti-hypertensive drugs based on their ATC codes, which typically start with "C02". The sub-code 'C02KX01' is excluded from the class. If the ATC code matches the pattern and is not in the exclusion list, and the medication was taken within the last month (NPI_25B <= 4), the medication is considered another anti-hypertensive drug, and the function returns TRUE. Otherwise, it returns FALSE.

Examples


# Let's say the ATC code is "C02AC04" and the time last taken was within last week (3).

is_other_antiHTN_med("C02AC04", 3) # Should return 1 (TRUE)
#> [1] 1