Testing

This is a report for helping visualize the temporal patterns of EMR events (admits, discharges, and various orders) relative to the admit date of the index visit reported in NSQIP, which throughout this report is set to 0, so that in the plots below, events with negative time values precede the NSQIP admission date, events equal to 0 coincide with it, and events with positive values follow it. Figures 1 and 2 show the overall frequencies for various types of events at various times relative to the index admission. The remaining figures plot patient histories as timelines with the x-axis representing time.

Exploration of event dates in Sunrise EMR vs NSQIP Registry data. Here we present histograms of event frequencies (fig. 1, fig. 2 ) and timelines (fig. 3, fig. 4) to aid in understanding patterns of discrepancies in admission/discharge dates between the two data sources. The trends discovered so far are summarized in the Conclusions So Far section at the end of this report. This report is directly generated by a script that can be obtained from https://github.com/bokov/nsqip_emr. The data needs to be obtained separately from the authors though there is a simulated dataset that comes with the git repository.

A regularly updated summary of preparing and verifying analytic variables from raw i2b2 data (containing de-identified linked NAACCR and EMR records along with population data from public sources). Eventually this will have the results of analysis as well.

A regularly updated summary of preparing and verifying analytic variables from raw i2b2 data (containing de-identified linked NAACCR and EMR records along with population data from public sources). Eventually this will have the results of analysis as well. This one is an archival release containing several items that will be removed from future releases because in my opinion they are no longer needed, but will be retained here for reference.