Duration of use was determined from the quantity of tablets prescribed.
Drug use by month, based on quantity of tablets, was therefore grouped: 'full-dose PPI' vs 'half-dose PPI and H2RA' vs 'no treatment'.
Data extracted included the number of thyroid hormone prescriptions dispensed in England per year, the cost of these prescription items and data to allow the calculation of the approximate prescription length administered (quantity of tablets per prescription).
We extracted details of all individual prescriptions for antidepressants during follow-up, including the issue date, the type and dose of antidepressant, dosage instructions, and quantity of tablets prescribed.
Descriptive statistics were generated on treatment characteristics for each 5-ASA treatment including the number and proportion of users, the number and average duration of prescriptions, and the average quantity of tablets per prescription.
23 We also included use of immunosuppressive treatment; we extracted all relevant prescriptions before the index date and calculated duration of prescription (using data on quantity of tablets prescribed and numeric daily dose).
We've worked in 100 sites in east Africa looking at what happens when vast quantities of tablets arrive and are handed out.
David doesn't know any of the children, but must get enough of a sense of their state of mind and circumstances to grasp something of the nature of the cuts on their thighs, the burns on their arms or the quantities of tablets swallowed.
An accurately weighed quantity of tablet powder was taken to prepare the solution equivalent to 1,000 μg mL−1 of lafutidine in diluent.
Both databases include the CPR number, the type and quantity (including tablet and package sizes) of the prescribed drug according to the Anatomical Therapeutic Chemical (ATC) classification system (World Health Organisation Collaborating Centre for Drug Statistics Methodology, 2001) and the date the prescription was filled.
