The retrospective case control design of our study can be prone to measurement error due to the difficulty in recalling past behavior, particularly over the lifetime.
Note that outlets without a primary geographic focus (such as sports, tech and games) may not be properly mapped and the map below may have a certain level of error due to the difficulties in precisely determining the location of origin of a given news outlet, but should reflect the overall contours of the geographic focus of Facebook's trusted news outlet list.
Distances are likely to contain measurement error due to incorrect geocoordinates and in the case of network distance, difficulties in terrain and seasonality were not considered in the measurement.
Compared to more objective measures of physical activity (such as accelerometers) [ 32], questionnaire-assessed activities are more prone to measurement error due to recall bias (particularly among the elderly), social desirability bias, and difficulties associated with capturing low-intensity activities.
Multithreaded software systems are prone to errors due to the difficulty of reasoning about multiple interleaved threads operating on shared data.
A persistent matter of concern in genomic data is the occurrence of errors, due to the difficulty of ensuring uniform quality control in such massive datasets.
Deep snow conditions and periods of snowmelt may have introduced error into the assimilation due to difficulty obtaining accurate brightness temperatures under these conditions.
However, ventilation settings are usually determined by trial and error using heuristic rules due to difficulty in understanding the interaction between ventilator and patient specific fundamental lung mechanics.
The macro-scaled resolution of our study is one way to address limitations of the fire data, namely omission errors due to detection difficulties, and a relatively short temporal extent.
This increased error can perhaps be extended to root volumes due to difficulties in determining the CEJ location as the enamel is at its thinnest in this area.
Reporting the NNT is currently challenging due to difficulties in defining thresholds of individual improvement that encompass both within patient variation/measurement error and clinically important change.
