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Statistical analysis

Focused analysis support for a project that already has, or will have, a dataset. The right analysis depends on the question, design, outcome, data structure and assumptions.

Kaplan-Meier survival curvesTwo stepped curves falling over time, one group separating below the other.
Kaplan-Meier survival curves

What you receive

  • Analysis plan

  • Statistical code

  • Tables and figures

  • Methods and results text

  • Interpretation notes

How it works

  1. 01

    Review what exists

    Question, design, outcomes, variable definitions, missing data, group structure, follow-up time and confounding considerations.

  2. 02

    Agree the analysis

    Methods, tables and figures are agreed before the analysis is run.

  3. 03

    Deliver and explain

    Output arrives with the reasoning behind it and, where applicable, the code that produced it.

Who this is for

  • Researchers with data collected and analysis outstanding
  • Teams who need one analysis done properly rather than ongoing support
  • Authors preparing tables and figures for submission

What you need to provide

  • Dataset structure and variable definitions
  • The research objective and primary outcome
  • Any journal or reporting requirements

Frequently asked questions

Can you clean the dataset?

Data review and preparation can be included in scope. How much depends on the condition and complexity of the data.

Related reading

  1. 01Survival analysis: Kaplan-Meier, Cox regression and competing risksTime-to-event methods exist because censoring is information. The commonest errors come from forgetting that, or from ignoring the events that make the event of interest impossible.
  2. 02Missing data: complete-case analysis, imputation and what each assumesEvery method for handling missing data makes an assumption about why it is missing. The assumption is usually untestable, which is exactly why it has to be stated.
  3. 03Odds ratios, risk ratios and hazard ratios: which to reportThe three are routinely described as interchangeable and are not. Reporting the wrong one, or interpreting it as though it were another, changes what the paper claims.

Tell us about your study

Send the scope and we will come back with a written quote. No account needed.

Get a quote