Anatomical Therapeutic Chemical (a medication classification system).
The DOC for this study had an electronic health record (EHR), from which all health data (diagnoses, medication classification, height and weight values) were extracted.
Again, two independent GINA classifications were combined: one based only on symptoms and FEV1 and called "clinical step" (Step C 1 4); and the other based on current medication to construct a final "symptom-FEV1 medication" classification and called "treatment step" (Step T 1 4).
Two independent GINA classifications were combined as recommended for the description of asthma severity in a population [14]one based on symptoms and FEV1 and called "Clinical Step" (Step C 1 4); and the other based on current medication and called "treatment step" (Step T 1 4) to construct a final "symptom-FEV1 medication" classification.
Proton pump inhibitors (PPI) were the medication classification requiring the most frequent intervention.
Antidepressant, anxiolytic and analgesic medication use were included as covariates (for description of medication classification, see Brinkman et al, 2013).
Details of medication data collection by direct observation and medication classification and coding have been described previously (11).
Furthermore, the RTPC coordinating centre has prepared a text file database for all open-ended questions (in English), including medication classification according to the ATC coding system, to ensure standardization across countries and enhance data quality.
24 Since January 1994, the registry has recorded the following information whenever a prescription is redeemed in Denmark: the civil registration number of the patient, the medication classification code (the anatomical therapeutic chemical classification system of the WHO) and the date of dispensing.
Following Waring and Lapane [ 24], who had analyzed the NCSH 2003 data, we fitted a model using the same data and with the following subset of variables: sex, race, DEP, ANX, POVERTY, age, and BMI, and the dependent variable as the trichotomized ADHD with medication classification, and indeed found obesity to be significantly associated in this model.
This report characterizes these medication classifications using key sales and purchasing behavior variables.
