. 2014 Jun 30;9(6):e101086. doi: 10.1371/journal.pone.0101086

Table 4. Test results for different age groups.

Group	Participants	Girls/Boys	Age	Identification score	T-test, girls/boys	Kruskal-Walis-Test effect of age
I (6–8)	76	44/32	7.3 (0.7)	10.09 (1.98)	t = 0.93, p = 0.36	Χ ² = 0.56, p = 0.74
II (9–14)	344	158/186	11.4 (1.8)	11.19 (1.87)	t = 0.50, p = 0.62	Χ ² = 7.28, p = 0.20
III (15–17)	117	66/51	16.3 (0.7)	12.05 (1.33)	t = 0.79, p = 0.43	Χ ² = 0.23, p = 0.89

Odor identification scores are shown for the three age groups in addition to descriptive data of the age groups. Displayed are mean (SD). No sex difference was found between girls and boys on the odor identification test for all three age groups. In addition no effect of age was observed within an age group.