Based on the date of surgery, patients were nonrandomly
separated into three cohorts to receive 50 tablets of Percocet, 30 tablets, or 30 tablets with an educational session, which outlined appropriate opioid use and alternative pain control strategies (107, 77, and 78 patients, respectively).
The study was retrospectively and nonrandomly
We used inverse probability weighting to address selection bias due to nonrandomly
missing AOD measurements due to snow and clouds or other factors.
Of the 14,083 members of the exiting BCBS plan, 6,073 were directly, nonrandomly
assigned to either the Medicaid-focused plan or the mixed plan because their primary care providers only participated in one of the plan's networks.
Patients were nonrandomly
divided into two groups, one group underwent total inferior turbinectomy with or without septoplasty and the other group underwent total inferior turbinoplasty with or without septoplasty.
In a prospective study of 21 AIT patients, patients were nonrandomly
allocated to 3 treatment groups including (1) amiodarone withdrawal group (n = 5), (2) propylthiouracil (PTU) group (n = 7), and (3) combination treatment of PTU (300 mg/d) and lithium (900-1350 mg/d) group (n = 9).
Although we found no meaningful differences between the parts of the sample we retained and parts we dropped, it is possible that participation/reporting varies nonrandomly
. In addition, we do not have information about medications, test results, or microbiology data, so we cannot confirm an LD diagnosis or determine whether and what microbiological testing was performed.
The CRU dataset derives from thousands of stations scattered nonrandomly
across the Earth, with much higher densities at mid-latitudes than in the tropics or the Arctic.
Because the synaptic connections were established by the learning of Set1, we hypothesized that the network would respond nonrandomly
in a manner that would reflect Set1 items.
Evidence suggests that teacher value-added estimates systematically differ, given the varying demographic characteristics of students nonrandomly
assigned to their classrooms.
Oothecae were nonrandomly
deposited (in a southerly direction) in all 3 y (Fig.
Three large stores, where many residents obtained groceries, were deliberately (i.e., nonrandomly
) placed into the sample.