. Author manuscript; available in PMC: 2021 Jan 1.

Published in final edited form as: Int Forum Allergy Rhinol. 2020 Jan;10(1):7–14. doi: 10.1002/alr.22445

Table 3:

Comparisons in the frequency of normal and abnormal olfactory scores between case subjects with CRS and control subjects without CRS.

TDI total score classification:	Control Subjects (n=164)	Case Subjects with CRSsNP (n=105)	χ2	p-value vs control	Case Subjects with CRSwNP (n=119)	χ2	p-value vs control
Normosmia	81 (49%)	43 (41%)	1.83	0.176	17 (14%)		<0.001
Hyposmia	73 (45%)	54 (51%)	1.23	0.268	36 (30%)		0.015
Anosmia	10 (6%)	8 (8%)	0.24	0.626	66 (56%)		<0.001
TDI components
Normal T	89 (54%)	38 (36%)	8.39	0.004	23 (19%)	35.21	<0.001
Abnormal T	75 (46%)	67 (64%)	8.39	0.004	96 (81%)	35.21	<0.001
Normal D	121 (74%)	79 (75%)	0.07	0.789	31 (26%)	63.19	<0.001
Abnormal D	43 (26%)	26 (25%)	0.07	0.789	88 (74%)	63.19	<0.001
Normal I	127 (77%)	79 (75%)	0.17	0.678	35 (29%)	64.99	<0.001
Abnormal I	37 (23%)	26 (25%)	0.17	0.678	84 (71%)	64.99	<0.001

CRSsNP, chronic rhinosinusitis without nasal polyposis; CRSwNP, chronic rhinosinusitis with nasal polyposis; SE, standard error of the mean; CI, confidence interval of the mean difference, SD, standard deviation; t, independent samples t-test statistic; χ2, chi-square test statistic; reported p-values correspond to two-sided significance. T, olfactory threshold; D, olfactory discrimination; I, olfactory identification.