Aldo F Costa

5 Questions 31 Answers 0 Followers

Questions related from Aldo F Costa

How to set numerical data in quartiles and analyze differences of other variables between them on SPSS?

I need to compare differences of distributions across quartiles of a numerical variables. It is kind of laborious to frst set the quartiles, then split the data on a new variable as a categorical...

28 June 2017 6,453 2 View

Can Inferential Statistics be carried out in a Retrospective Study?

In a retrospective study based on reviewing clinical files, should I run inferential statistical tests even if no power calculation could be made to determine the required sample size before the...

02 June 2017 9,129 3 View

How many authors a meta-analysis must have?

It is ok if just one person writes a meta-analysis?. Didn´t find any contraindications on PRISMA guidelines.

22 March 2016 6,605 12 View

Is it feasible to use eGFR calculation in AKI?

In acute setting what is the validity of using eGFR calculation. It is only to CKD or it can be use in patients previously healthy who develops an AKI?

13 December 2015 5,170 24 View

What is the most useful scale; Overt Aggression Scale (OAS) or the modified version (MOAS)?

Im working on a cross-sectional correlation study and I need to measure the agression severity in outpatients. I do not know which scale would be better. Also anybody knows how to rate and...

07 July 2015 7,521 4 View