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. Author manuscript; available in PMC: 2018 Apr 17.
Published in final edited form as: Int Forum Allergy Rhinol. 2014 Dec 22;5(2):111–118. doi: 10.1002/alr.21437

FIGURE 2.

FIGURE 2

Averaged responses to the Likert scale question “[How much do] nasal symptoms affect my quality of life?” p = 0.014 for the trend in the means, using the Mantel-Haenszel extension of the Wilcoxon rank sum test (a nonparametric test for trend). Possible responses to the question ranged from “not at all” (0) to “a lot” (4).