Fig. 2: The 1–2 factorial subgroups for outcome asthma. | Journal of Exposure Science & Environmental Epidemiology

Fig. 2: The 1–2 factorial subgroups for outcome asthma.

From: A novel concept of screening for subgrouping factors for the association between socioeconomic status and respiratory allergies

Fig. 2

The degree of dot transparency reflects the number of factor levels: the brighter the dot, the more factors are combined in that group. Darker dots can be also caused by the overlap of multiple subgroups. A visual striking subgroup is actively highlighted (red dot). A dot cluster (figure edited with a yellow oval) appears below the red highlighted subgroup. The striking cluster yellow oval added appears because other factor level combinations’ odds ratio, which includes parent’s education, are highly correlated with the red highlighted subgroup; while the combination with no “current contact with farm animals” yielded the highest odds ratio in that area.

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