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. 2020 Oct 23;10(11):769. doi: 10.3390/brainsci10110769

Table 3.

Descriptive statistics of the case series by cause of olfactory loss.

Variable Congenital Idiopathic Post-Infection Sino-Nasal Disease Trauma Miscellaneous
Number of cases 10 66 63 34 33 17
Mean age in years (SD) 17.7 (5.6) 61.9 (13.8) 56.2 (15.3) 57.5 (11.4) 53.2 (14.6) 52.6 (17.5)
Percent males 20% 47% 32% 53% 49% 50%
Percent presence of parosmia 0% 8% 37% 0% 18% 6%
Percent presence of phantosmia 0% 18% 11% 9% 21% 6%
Mean duration of problem-months (SD) - 33.3 (37.7) 19.9 (30.0) 71.9 (65.4) 17.5 (26.9) 27.8 (30.4)
Mean threshold (SD) 1.0 (0.2) 2.7 (2.1) 2.3 (2.0) 2.2 (2.0) 1.6 (1.6) 3.9 (2.7)
Mean discrimination (SD) 5.6 (2.2) 8.6 (3.1) 8.3 (3.1) 8.8 (3.2) 7.0 (2.8) 9.9 (3.2)
Mean identification (SD) 4.8 (1.7) 9.1 (4.0) 8.8 (3.5) 8.1 (4.3) 5.9 (4.0) 11.0 (3.3)
Mean retronasal test (SD) 53.3 (40.2) 68.3 (35.7) 67.6 (34.4) 65.1 (23.7) 65.1 (31.3) 83.3 (35.7)
Mean taste sprays (SD) 92.5 (12.0) 90.0 (22.5) 93.5 (16.3) 93.2 (15.7) 92.3 (18.3) 92.5 (14.7)
Mean Western style diet (SD) 61.1 (6.8) 51.0 (10.3) 52.6 (10.9) 53.5 (11.3) 55.1 (11.0) 54.1 (12.3)