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. Author manuscript; available in PMC: 2017 Dec 17.
Published in final edited form as: Int J Audiol. 2017 Apr 22;56(9):622–634. doi: 10.1080/14992027.2017.1314557

Table 2.

Results for mixed models with comparisons between diagnostic categories for tests for NH versus patent PET in the top panel, and tests for NH versus CHL categories in the bottom panel. Models included Group (DS and TD), with ear and age as covariates. Tympanometry refers to data from wideband downswept absorbance.

Variables Ambient Absorbance Ambient Group Delay Absorbance at Ppt Downswept
Frequencies (kHz) Normal v Tubesa Normal v Tubesb Normal v Tubesc
0.25 0.001 0.003 0.0004
0.35 <0.0001 <0.0001 <0.0001
0.5 <0.0001 <0.0001 <0.0001
0.7 <0.0001 <0.0001 <0.0001
1.0 <0.0001 <0.0001 0.0006
Variables Ambient Absorbance Group Delay at TPP Downswept Absorbance at TPP Downswept
Frequencies (kHz) Normal v CHLa Normal v CHLb Normal v CHLc
0.7 NA 0.29 NA
1.0 0.02 0.15 0.0004
1.4 0.0003 0.19 <0.0001
2 0.006 0.24 0.0003
2.8 0.13 NA 0.009
4 0.03 NA 0.24
Overall Tympanometry: Normal v CHLd
DALnt <0.0001
DALpt 0.001
a

DS included, not significant (p=0.57); Age in months included, not statistically significant (p=0.15); Ear included as random effect, not significant as fixed effect (p=0.15)

b

DS included, not significant (p=0.59); Age in months included, statistically significant (p=0.003); Ear included as random effect, not significant as fixed effect (p=0.17)

c

DS included, statistically significant (p=0.036); Age in months included, statistically significant (p<0.0001); Ear included as random effect, not significant as fixed effect (p=0.85)

a

DS included, not significant (p=0.08); Age in months included, not statistically significant (p=0.72); Ear included as random effect, not significant as fixed effect (p=0.29)

b

DS included, not statistically significant (p=0.16); Age in months included, not statistically significant (p=0.13); Ear included as random effect, not significant as fixed effect (p=0.48)

c

DS included, not significant (p=0.31); Age in months included, not statistically significant (p=0.68); Ear included as random effect, not significant as fixed effect (p=0.71);

d

Wilcoxon Rank Sum test

NA - not available, did not test for significance