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Multiple publications on the same dataset were generally not felt to be of high methodological quality, predominately due to the lack of alignment between research question and methods, particularly participant sampling.
If research is a means of accessing treatment, we must be concerned about the context in which decisions about research participation are made and the potential that this has for skewing participant sampling and the outcomes of health research, including clinical trials.
Purposeful participant sampling continued until data saturation was reached, which was the point when 'no new analytical insights [were] forthcoming' [36].
Some items are insufficiently reported, especially: participant sampling (adequately reported in 19.6% of studies), executing and reading the tests (11.7%), blindness (11.8%) and, the description of test reproducibility (19.1%).
Blindness and participant sampling are the cornerstone to evaluate such bias as spectrum, verification, review and selection bias of a study, and were unfortunately scarcely reported compared to existing data in diagnosis accuracy reporting.
Two other STARD items were poorly reported (less than 50% of time): participant sampling method (31%) and statistical methods to calculate diagnostic accuracy and uncertainty/precision (47%).
Similar(45)
In total, 3450 of the sampled 3,854 participants agreed to participate and were included in the analyses (89.5%), with one participant sampled from each household.
The details of the participants' sampling information are available elsewhere [ 24].
In October it held a free Eat Bug Eat event at which participants sampled tacos stuffed with deep-fried wax moth larvae.
On day 11, participants sampled two infusions of methamphetamine (0 and 30 mg, IV).
Of the 130 participants sampled, there were 33 children who were 10 years or younger.
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