Comparison of percentiles in SPSS

Posted by Kai E on Feb 02, 2013; 12:15pm
URL: http://spssx-discussion.165.s1.nabble.com/Comparison-of-percentiles-in-SPSS-tp5717882.html

Hello everyone,

I need some assistance with a statistical problem:

I have calculated the 99th percentiles with their 95% confidence intervals (using bootstrapping) for results of a blood test in a large population of healthy subjects. Analyses had been run in SPSS 21 and show that the 99th percentiles are quite different depending on certain background factors such as sex, age etc.

Does anyone know if SPSS 21 offers the possibility to compare the 99th percentiles in specific subcohorts, e.g. in men compared to women, age <65 compared to >65 years, and how to get this done?

Thanks in advance for your assistance.

Kai