Time series data and tsset. To use Stata's time-series functions and analyses, you must first make sure that your data are, indeed, time-series. First, you must have a date variable that is in Stata date format. Secondly, you must make sure that your data are sorted by this date variable.
Patients were randomly assigned to either a control condition (opioid analgesia alone) or anxiolytic condition (opioid analgesia+lorazepam) and then asked to report their worst procedural pain for 4 consecutive days: a 2-day baseline period and a 2-day post-treatment period.
BRAND NAME: Ativan. DRUG CLASS AND MECHANISM: Lorazepam is a drug used for treating anxiety. It is in the benzodiazepine family of drugs, the same family that includes diazepam (Valium), alprazolam (Xanax), clonazepam (Klonopin), flurazepam (Dalmane), and others. It is thought that excessive activity of nerves in the brain may cause anxiety and other psychological disorders. Gamma-aminobutyric acid (GABA) is a neurotransmitter, a chemical that nerves in the brain use to send messages to one another that reduces the activity of nerves in the brain.