Thus, results from the 16 week follow-up period are valid in informing clinical decision making.
Total physical activity was calculated as the average accelerometer counts per minute over the full period of valid recording.
Total physical activity (movement) was computed using accelerometer-defined counts over the full period of valid data collection.
29 30 31 The study population consisted of all patients with a Clinical Practice Research Datalink read code for bariatric surgery during the period of valid data collection (from January 1987 to December 2010).
Since its foundation in 1999, Euro-Peristat's objective has been to monitor and evaluate maternal and child health during the perinatal period using valid and reliable indicators.
Although data for YF vaccination records in Asia are scarce, the literature revealed that 25% of the passengers travelling to Kolkata, India, during the 1982 1984 period possessed valid YF vaccination certificates [ 22].
Despite these limitations, this is the first study to investigate whether serum osteocalcin is associated with the development of incident diabetes in a relatively large sample size and long-term follow-up period with valid statistical methods.
All patients with at least one prescription of antidiabetic drugs (ADDs) (oral antidiabetic drugs (NIADs) and/or insulin) and aged above 18 years during the period of valid CPRD data collection were included.
The population-level cohort was defined on the basis that individuals had a recorded history of opioid dependence (as evidenced by the receipt of OST), at least one criminal charge during the study period, and valid information regarding their Indigenous identity (n = 34,962).
The strengths of our study include a prospective population-based sample of adults aged 20-79 years, a completed 10-year follow-up period utilizing valid and reliable mortality data based on a national death register, comprehensive subjective health and covariable assessment, as well as a broad multi-biomarker panel.
Demand was measured using wear time estimates, percentage of wake periods with valid data (i.e., worn ≥10 h per day), and percentage of sleep periods with valid data (i.e., worn during sleep).
