Table 4.
Factors associated with olfactory disorder among COVID-19 patients admitted to National Centre for Infectious Diseases (NCID) from 24 March 2020 to 16 April 2020
| Factors | Total (n = 1065) | Olfactory disorder | p value | |
|---|---|---|---|---|
| Absent (n = 939) | Present (n = 126) | |||
| Demographics | ||||
| Age (years) | 34 (28–42) | 34 (28–42) | 34 (29–41) | 0.933 |
| Gender | ||||
| Female | 132 (100) | 98 (74.24) | 34 (25.75) | < 0.001 |
| Male | 933 (100) | 841 (90.13) | 92 (9.86) | |
| Race | < 0.001 | |||
| Chinese | 154 (100) | 119 (77.27) | 35 (22.72) | |
| Indian | 221 (100) | 199 (90.04) | 22 (9.95) | |
| Malay | 47 (100) | 39 (82.97) | 8 (17.02) | |
| South East Asian | 40 (100) | 31 (77.5) | 9 (22.5) | |
| Bangladeshi | 568 (100) | 524 (92.25) | 44 (7.74) | |
| Caucasian | 27 (100) | 19 (70.37) | 8 (29.62) | |
| Others | 8 (100) | 8 (100) | 0 (0) | |
| Associated symptoms | ||||
| Blocked nose | ||||
| Yes | 69 (100) | 47 (68.11) | 22 (31.88) | < 0.001 |
| No | 995 (100) | 891 (89.54) | 104 (10.45) | |
| Runny nose | ||||
| Yes | 193 (100) | 159 (82.38) | 34 (17.61) | 0.009 |
| No | 871 (100) | 779 (89.43) | 92 (10.56) | |
| Cough | ||||
| Yes | 624 (100) | 546 (87.5) | 78 (12.5) | 0.442 |
| No | 441 (100) | 393 (89.11) | 48 (10.88) | |
| Sore throat | ||||
| Yes | 388 (100) | 336 (86.59) | 52 (13.4) | 0.238 |
| No | 677 (100) | 603 (89.06) | 74 (10.93) | |
| Fever | ||||
| Yes | 818 (100) | 743 (90.83) | 75 (9.16) | < 0.001 |
| No | 246 (100) | 195 (79.26) | 51 (20.73) | |
| Diarrhoea | ||||
| Yes | 71 (100) | 55 (77.46) | 16 (22.53) | 0.007 |
| No | 993 (100) | 883 (88.92) | 110 (11.07) | |
| Other symptoms | ||||
| Yes | 442 (100) | 399 (90.27) | 43 (9.72) | 0.083 |
| No | 622 (100) | 539 (86.65) | 83 (13.34) | |
Frequency (%) shown for categorical variables and median (interquartile range) shown for continuous variables
Bold values indicate that the statistically significant