Other features of the ASP technology, including drop-down menus, are used to standardize the data collected.
Over time, various problems with data quality have been encountered, including data drop-offs, missing data elements, incorrect values of fields, duplication of data, data delays and unexpected changes in files received from hospitals.
Intention-to-treat analysis was performed by including the drop-out data carrying the last data point forward into analysis.
Nonetheless, the performance of different clustering methods varies widely and usually drops for networks including noisy data.
The intent-to-treat analysis including data from drop-outs revealed similar results, a main significant effect of Time (F [1, 42] = 51.0, p < 0.001, d = 2.20) and a significant interaction of Group × Time (F [1, 42] = 18.9, p < 0.001, d = 1.34).
However, it was expected that 30% of participants would not comply with the study protocol, which may be due to unusable data (including incomplete data, technical failure), drop-outs and non-finishers due to intervention and/or the follow-up period.
This allows to analyze data from an effectiveness (outcome in real life circumstances, using all data, including imputed data in case of study drop-out etc).
Seven patients out of 409 patients initially included were dropped because of missing data.
Chosen examples demonstrate different applications for rheological data including pressure drop calculation in pipe flow, heat transfer calculations, residence time prediction, computational fluid dynamics, and yield stress measurement.
From Figs. 8, 9, 10, and 11, it can be found that the predicted production data including pressure drop, water cut, and cumulative gas oil ratio are in good agreement with the observed values, with an average absolute error of 13.6 %, 2.3 %, and 1.7 %, respectively, which indicates that the estimated three-phase relative permeability curve is reliable.
Patients in the GBSG study were randomised in most cases following three cycles of CMF to avoid including early drop-outs in the data analysis.
