Is OpenSDE an alternative for dedicated medical research databases? An example in coronary surgery-1

<p><b>Copyright information:</b></p><p>Taken from "Is OpenSDE an alternative for dedicated medical research databases? An example in coronary surgery"</p><p>http://www.biomedcentral.com/1472-6947/7/31</p><p>BMC Medical Informatics and Decision Making 2007;7():31-31.</p><p>Published online 22 Oct 2007</p><p>PMCID:PMC2173886.</p><p></p>alComplications_PS represents if a complication occurred or not

Is OpenSDE an alternative for dedicated medical research databases? An example in coronary surgery-3

<p><b>Copyright information:</b></p><p>Taken from "Is OpenSDE an alternative for dedicated medical research databases? An example in coronary surgery"</p><p>http://www.biomedcentral.com/1472-6947/7/31</p><p>BMC Medical Informatics and Decision Making 2007;7():31-31.</p><p>Published online 22 Oct 2007</p><p>PMCID:PMC2173886.</p><p></p

Presence of alarming signs and symptoms.

<p>*Assumption: when not mentioned in the record, it is not present.</p>†<p>Percentage of N registered.</p

Frequency of combined presence of alarming signs and symptoms.

<p>Frequency of combined presence of alarming signs and symptoms.</p

Correlation between alarming signs and symptoms (Pearson's correlation coefficient).

<p>Correlation between alarming signs and symptoms (Pearson's correlation coefficient).</p

Selection of eligible contacts for the study.

<p>Selection of eligible contacts for the study.</p