Inaamul Haq

6 Questions 22 Answers 0 Followers

Questions related from Inaamul Haq

STATA command for scatterplot with linear fit line for subgroups?

I have three variables: sbp, age and sex. I want to make a scatterplot for the relationship between sbp and age (both continuous variables) for sex groups (male and female). What would be the...

07 July 2018 4,995 2 View

How do I compare change in a function measured using two different scales?

I am measuring lung function using FEV1 (%) and CT score (range 0-30) in 20 patients at time 0 and at one year of follow up. How should I test which of the two measures (FEV1% or CT Score) shows...

07 July 2017 9,408 4 View

How can I assess diagnostic accuracy for an ordinal outcome?

I am evaluating an outcome which is an ordinal variable with 5 levels. I am measuring this outcome with a 'gold standard technique' and two other non-invasive techniques in 30 patients. I want to...

08 August 2015 2,611 7 View

How can I analyze a three by four factorial design with a categorical dichotomous outcome?

My experiment involves three groups of patients receiving three different drugs. Each patient in all the three groups is examined at baseline, 2 weeks, 4 weeks and 6 weeks for a categorical...

03 March 2015 9,439 9 View

How do I statistically compare the sensitivity and specificity or LR+ and LR- of three diagnostic tests performed on the same patients?

In my experiment I am subjecting 50 patients to a definitive diagnostic test and three more different tests. How do I statustically test the hypothesis that the sensitivity and specifity or the...

03 March 2015 7,236 22 View

Book on Multilevel Modeling

Can someone please advise on a good book on multilevel modeling which gives a basic conceptual understanding of Multilevel Modeling and does not include much of mathematical jargon?

01 January 1970 776 2 View