RT Journal Article
SR Electronic
T1 Guidance for use of weights: an analysis of different types of weights and their implications when using SAS PROCs
JF General Psychiatry
JO Gen Psych
FD BMJ Publishing Group Ltd
SP e100038
DO 10.1136/gpsych-2018-100038
VO 32
IS 1
A1 Sabrina Richardson
A1 Tuo Lin
A1 Yangyi Li
A1 Xiaohui Niu
A1 Manfei Xu
A1 Valerie Stander
A1 Xin M Tu
YR 2019
UL http://gpsych.bmj.com/content/32/1/e100038.abstract
AB SAS and other popular statistical packages provide support for survey data with sampling weights. For example, PROC MEANS and PROC LOGISTIC in SAS have their counterparts PROC SURVEYMEANS and PROC SURVEYLOGISTIC to facilitate analysis of data from complex survey studies. On the other hand, PROC MEANS and many other classic SAS procedures also provide an option for including weights and yield identical point estimates, but different standard errors (SEs), as their corresponding survey procedures. This paper takes an in-depth look at different types of weights and provides guidance on use of different SAS procedures.