Welcome
What are you trying to do?
A study for my organisation in medicine and clinical research.
Your path
Create the study and set the discipline
The discipline decides what every later page shows you.
Decide whether people are involved
If your data is about machines, facilities or finances rather than people, declare no human subjects and the data protection conditions do not apply. The declaration is checked.
Collect or import
Collect through ZStat with consent and withdrawal, or bring a CSV, Excel or SPSS file you already have.
Analyse and compare
Between sites, periods, groups or programmes - with the effect size, because significance alone does not tell a manager whether it matters.
Produce the assurance pack
Generated from your own installation, for a funder or a data protection officer.
What people in your field ask
Design and register - collect with consent - describe the sample - answer the primary question - check the assumptions - report to CONSORT or STROBE.
- Does the new treatment work better than the standard one?independent t
- Is the cheaper treatment no worse than the expensive one?non inferiority
- How good is this test at telling sick from well?diagnostic accuracy
- Is our new test better than the existing one?roc comparison
- Does the exposure raise the risk?risk measures
Watch for: p values in the baseline characteristics table of a randomised trial. Any imbalance is by definition chance, and CONSORT has advised against it since 2001.
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