Table 1. Demographics of the study sample.
| Olfaction and subjective olfactory function | ||||
|---|---|---|---|---|
| Subjective olfactory function | All ( n = 602) | Absent ( n = 345) | Reduced ( n = 238) | Normal/Good ( n = 19) |
| Age, years (IQR) † | 59 (49–68) | 61 (49–70) | 58 (50–66) | 53 (42–61) |
| Gender: male, n (%) | 239 (40) | 130 (38) | 103 (43) | 6 (32) |
| Total TDI score, mean (SD) | 18.0 (7.9) | 14.5 (6.1) | 22.0 (7.4) | 32.2 (2.6) |
| Normosmic score, n (%) | 62 (10.3) | 6 (1.7) | 40 (16.8) | 16 (84.2) |
| Hyposmic score, n (%) | 267 (44.4) | 117 (33.9) | 147 (61.7) | 3 (15.8) |
| Anosmic score, n (%) | 273 (45.3) | 222 (64.4) | 51 (21.4) | 0 (0.0) |
| Taste Strips test, mean (SD); n = 143 | 11.8 (4.1) | 12.5 (3.9) | 11.3 (4.0) | 6.0 (2.5) |
| Taste-Drop-Test, mean (SD); n = 115 | 23.4 (6.6) | 23.2 (6.9) | 24.2 (6.2) | 21.4 (5.8) |
| Normogeusic score, n (%) | 167 (64.7) | 105 (69.1) | 60 (65.9) | 2 (13.3) |
| Hypogeusic score , n (%) | 64 (24.8) | 28 (18.4) | 25 (27.5) | 11 (73.4) |
| Ageusic score, n (%) | 27 (10.5) | 19 (12.5) | 6 (6.6) | 2 (13.3) |
| Gustation and subjective gustatory function | ||||
| Subjective gustatory function | All ( n = 258) | Absent ( n = 77) | Reduced ( n = 144) | Normal/Good ( n = 37) |
| Age, years (IQR) † | 60 (49–70) | 65 (55–74) | 58 (48–68) | 58 (38–65) |
| Gender: male/female, n (%) | 99 (38) | 25 (32) | 57 (40) | 17 (46) |
| Taste Strips test, mean (SD) | 11.8 (4.9) | 11.1 (4.8) | 11.7 (4.0) | 13.7 (2.1) |
| Taste-Drop-Test, mean (SD) | 23.4 (6.6) | 22.0 (7.1) | 24.2 (6.4) | 23.9 (6.3) |
| Normogeusic score, n (%) | 167 (64.7) | 42 (54.5) | 96 (66.7) | 29 (78.4) |
| Hypogeusic score, n (%) | 64 (24.8) | 20 (26.0) | 38 (26.4) | 6 (16.2) |
| Ageusic score, n (%) | 27 (10.5) | 15 (19.5) | 10 (6.9) | 2 (5.4) |
| Total TDI score, mean (SD) | 18.6 (8.4) | 18.1 (7.5) | 19.3 (9.1) | 17.1 (7.3) |
| Normosmic score, n (%) | 36 (14.0) | 8 (10.4) | 27 (18.8) | 1 (2.7) |
| Hyposmic score, n (%) | 108 (41.9) | 36 (46.7) | 56 (38.9) | 16 (43.3) |
| Anosmic score, n (%) | 114 (44.2) | 33 (42.9) | 61 (42.4) | 20 (54.0) |
Abbreviations: IQR, interquartile range; SD, standard deviation; TDI, threshold, discrimination and identification.
Notes: Normosmia, hyposmia and anosmia were computed from the total TDI score. Normogeusic, hypogeusic, and ageusic scores were computed from the total score of the Taste Strips test or Taste-Drop-Test.
†
Median age.