Author/Editor		Zaletel-Kragelj, Lijana; Eržen, Ivan
Title		Ecological studies
Type		članek
Source		In: A handbook for teachers, researchers and health professionals : analysis - planning - evaluation Lage : Jacobs
Publication year		2013
Volume		str. 162-174
Language		eng
Abstract		Ecological study is an epidemiological study in which the units of analysis are populations or groups of people, rather than individuals. They are very applicable in situations in which data are not available at an individual level, but one should be careful when interpreting results of this type of epidemiological studies. The module is describing strengths and limitations of epidemiological studies, as well as procedures for analyzing data in the SPSS programme.
Keywords		epidemiološke študije javno zdravje