- Univariate analysis of the factors influencing the presence of sinonasal symptoms (N=184).
| Factors | Presence of sinonasal symptoms | X2 | P-values§ | |
|---|---|---|---|---|
| Yes (n=126) | No (n=58) | |||
| Age group | ||||
| ≤40 years | 77 (61.1) | 41 (70.7) | 1.584 | 0.208 |
| >40 years | 49 (38.9) | 17 (29.3) | ||
| Gender | ||||
| Male | 103 (81.7) | 46 (79.3) | 0.153 | 0.696 |
| Female | 23 (18.3) | 12 (20.7) | ||
| Job category | ||||
| Pilot | 44 (34.9) | 20 (34.5) | 6.739 | 0.034** |
| Flight attendant | 35 (27.8) | 7 (12.1) | ||
| Other aircrew members | 47 (37.3) | 31 (53.4) | ||
| Do you have any nasal, sinus, or ear problems after or during flying? | ||||
| Yes | 90 (71.4) | 18 (31.0) | 26.731 | <0.001** |
| No | 36 (28.6) | 40 (69.0) | ||
| Do these problems affect your job performance? | ||||
| Yes | 73 (57.9) | 8 (13.8) | 31.407 | <0.001** |
| No | 53 (42.1) | 50 (86.2) | ||
| Do you have to cancel or change your trip due to recurring symptoms? | ||||
| Yes | 43 (34.1) | 4 (06.9) | 15.485 | <0.001** |
| No | 83 (65.9) | 54 (93.1) | ||
| Duration in hours in the air per week | ||||
| ≤8 hours | 59 (46.8) | 40 (69.0) | 7.833 | 0.005** |
| >8 hours | 67 (53.2) | 18 (31.0) | ||
| Having allergy* | ||||
| Yes | 34 (61.8) | 14 (53.8) | 0.465 | 0.495 |
| No | 21 (38.2) | 12 (46.2) | ||
| Smoking | ||||
| Yes | 53 (42.1) | 19 (32.8) | 1.444 | 0.230 |
| No | 73 (57.9) | 39 (67.2) | ||
| History of sinus, nasal, or ear surgery | ||||
| Yes | 29 (23.0) | 4 (06.9) | 7.012 | 0.008** |
| No | 97 (77.0) | 54 (93.1) | ||
| Having medical condition | ||||
| Yes | 27 (21.4) | 10 (17.2) | 0.433 | 0.510 |
| No | 99 (78.6) | 48 (82.8) | ||
| Taking medication | ||||
| Yes | 40 (31.7) | 10 (17.2) | 4.222 | 0.040** |
| No | 86 (68.3) | 48 (82.8) | ||
| Previous accidents to the head, face, or nose | ||||
| Yes | 19 (15.1) | 3 (05.2) | 3.703 | 0.054 |
| No | 107 (84.9) | 55 (94.8) | ||