Search results

  1. S

    Sample size calculation

    I want to see what is the outcome (measured by a scoring system) of a surgery in a certain fracture. I will only be taking the treated ones (no comparison).
  2. S

    Sample size calculation

    I need to study the outcome of an intervention in a disease. I will be doing a prospective observational (longitudinal) study in a single cohort (I am not sure if i'm correct - I mean, I will be taking only a single group of diseased undergoing the proposed intervention). The prevalence of the...
  3. S

    Sample size calculation for prospective observational study studying outcome of an intervention?

    Hi hlsmith, I mean: I need to study the outcome of an intervention in a disease. I will be doing a prospective observational (longitudinal) study in a single cohort (I am not sure if i'm correct - I mean, I will be taking only a single group of diseased undergoing the proposed intervention)...
  4. S

    Sample size calculation for prospective observational study studying outcome of an intervention?

    Functional outcome is a score and intervention is a type of surgery and disease is a fracture. The prevalence of disease is around 2.6%.
  5. S

    Sample size calculation for prospective observational study studying outcome of an intervention?

    Hello everyone, I am submitting proposal for thesis and I need help with the sample size calculation. My study is: to study the outcome of "x" intervention in "y" disease The prevalence of disease is 2.6%. How do I calculate the needed sample size? What else information do I need from the...