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Fig. 4 | Environmental Health and Preventive Medicine

Fig. 4

From: Effect of laughter on salivary flow rates and levels of chromogranin A in young adults and elderly people

Fig. 4

Changes in mood status after watching the comic film (gray box, n = 15) and the non-humorous control film (non-shaded box, n = 15). Line inside of the box-plot Median value, lower, upper regions of the box lower, upper quartiles, respectively, lower, upper horizontal lines outside of the box smallest and largest observations, respectively. **, ***Statistically significantly different from “before watching film” at p < 0.01 and p < 0.001, respectively (Wilcoxon matched-pairs signed-ranks test)

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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