PMC:4536239 / 8771-9130
Annnotations
{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/4536239","sourcedb":"PMC","sourceid":"4536239","source_url":"https://www.ncbi.nlm.nih.gov/pmc/4536239","text":"As with most survey sampling designs, non-response resulted in data missing from several variables. The data reported are based on the available data. Sample sizes of some variables diverge from the total sample size of 2,695 because of non-responses for that particular variable. Imputation techniques were not employed to minimise non-response effects [33].","tracks":[]}