Table 1.

Compounds Detected in Headspace of Airway Epithelial Cells That Differed between Medium- and RV-treated Cells

Retention Time (min)*	P Value	Q Value	Log Change	Compound	M/Z Base Peak†
9.27	0.000321	0.031275	1.0318	Poor match (MW = 48)	47
10.07	5.08 × 10−6	0.002312	−0.90847	2-Methyl-2-propanol	59
10.33	1.02 × 10−6	0.000696	−1.8906	Cyclobutylamine	43
10.33	4.08 × 10−5	0.009287	−1.0242	1-Chloro-2-methyl-butane	57
14.83	0.000252	0.026484	−0.55854	Poor match (MW = 119)	33
14.93	7.35 × 10−5	0.014336	−1.2767	Poor match (MW = 54)	39
19.42	0.000212	0.026306	0.49521	Dimethyl disulfide	94
19.47	7.71 × 10−5	0.013148	−2.2581	Acetoin	45
19.8	2.34 × 10−7	0.000319	−2.3047	Poor match (MW = 86)	56
26.69	3.19 × 10−5	0.008707	−0.90224	Poor match (MW = 250)	94
28.92	0.000171	0.023394	−0.8531	Decane‡	57
33.91	1.30 × 10−5	0.004427	−1.1848	Phenol acetate	94
43.24	0.000171	0.025977	1.4178	Poor match (MW = 270)	74
45.53	0.000212	0.024114	−1.1673	Poor match (MW = 366)	71

Definition of abbreviations: FDR = false discovery rate; M = mass; MS = M spectral; MW = molecular weight; NIST = National Institute of Standards and Technology; RV = rhinovirus; Z = charge number of ions.

Data were analyzed by using ANOVA with FDR correction (Q value). Negative log-change values indicate compounds increased in RV- versus medium-treated cells.

^*Retention time indicates the time to compound identification that was spent by a solute in the gas chromatography column.

^† The M/Z base peak, which is used to identify compounds, is the tallest peak in the M spectrum that is due to an ion having the greatest relative abundance.

^‡ Indicates identification by matching to the NIST MS library and authentic standard.