5
Table 5. Comorbidities and Contributory Factors
1. Rhinosinusitis/(adults), nasal polyps
2. Psychological factors: personality trait, symptom perception, anxiety, depression
3. Vocal cord dysfunction
4. Obesity
5. Smoking/smoking related disease
6. Obstructive sleep apnea
7. Hyperventilation syndrome
8. Hormonal influences: premenstrual, menarche, menopause, thyroid disorders
9. Gastro-esophageal reflux disease (symptomatic)
10. Drugs: aspirin, non-steroidal anti-inflammatory drugs (NSAIDs), β-adrenergic
blockers, angiotensin-converting enzyme inhibitors
