. 2012 Oct 3;7(10):e46938. doi: 10.1371/journal.pone.0046938

Table 4. Discrimination of odor intensity by three groups.

	2-phenylethanol (PHE)			Isovaleric acid (ISO)
Concentration level	DP	CIP	HC	DP	CIP	HC
C1	3.1 (2.4)^A	2.3 (1.6)^A	2.1 (1.9)^A	5.4 (2.6)^A	6.1 (2.4)^A	2.1 (1.7)^A
C2	5.1 (2.7)^B	4.0 (2.9)^AB	4.0 (2.0)^B	5.4 (2.7)^A	5.6 (2.8)^A	3.6 (2.0)^B
C3	6.1 (2.6)^B	4.9 (3.1)^B	5.9 (2.5)^C	7.3 (2.6)^A	6.9 (2.6)^A	5.9 (2.4)^C

Odor intensity mean scores (SD) of 2-phenylethanol (PHE) and isovaleric acid (ISO) evaluated in depressed patients at V1 [DP] (n = 18), in clinically improved patients at V2 [CIP] (n = 18) and in healthy controls [HC] (n = 54). The results must be read in columns: for each odorant, mean values with the same letter are not significantly different at α = 5%, using the Nemenyi procedure.