PMC:4137988 / 21339-22411 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/4137988","sourcedb":"PMC","sourceid":"4137988","source_url":"https://www.ncbi.nlm.nih.gov/pmc/4137988","text":"Most studies in children (eleven of 14) and pregnant woman–child pairs (four of six) used an a priori approach and defined the dietary pattern using a Mediterranean diet index, whereas ten of 12 studies in adults utilized an a posteriori approach to derive dietary patterns statistically (eg, with PCA). In addition to the Mediterranean diet, future studies may also examine the association between healthy dietary patterns in other regions (eg, the widely promoted Dietary Approaches to Stop Hypertension in the USA54) or alternative diet quality indices (eg, the Healthy Eating Index55) and asthma outcomes. If using the a posteriori approach, the reliability and validity of the dietary patterns generated from FFQs can be examined using a different source of dietary data (eg, dietary records). To examine the reproducibility of the dietary patterns, sensitivity analyses can be performed to test whether the arbitrary choices made during PCA or factor analysis influence the results and whether similar dietary patterns can be obtained using randomly split samples.52","tracks":[{"project":"2_test","denotations":[{"id":"25143747-7560680-55576552","span":{"begin":585,"end":587},"obj":"7560680"},{"id":"25143747-11790957-55576553","span":{"begin":1070,"end":1072},"obj":"11790957"}],"attributes":[{"subj":"25143747-7560680-55576552","pred":"source","obj":"2_test"},{"subj":"25143747-11790957-55576553","pred":"source","obj":"2_test"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"2_test","color":"#ec93c6","default":true}]}]}}