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Table 3 Referral and discharge diagnoses of the emergency visits made by the asthma patients

From: Long-term smoking increases the need for acute care among asthma patients: a case control study

Diagnosis Reference visit N = 117 (%) All visits N = 295(%) Visits leading to hospitalization N = 168 (%)
Referral    
Asthma exacerbation 50 (42.7) 140 (47.4) 87 (51.8)
Arrhythmias 5 (4.3) 22 (7.5) 4 (2.4)
Chest pain 15 (12.8) 25 (8.5) 11 (6.5)
Dyspnoea 19 (16.2) 40 (13.5) 26 (15.5)
Fever 5 (4.3) 26 (8.8) 15 (8.9)
Respiratory infection 17 (14.6) 33 (11.2) 22 (13.1)
Sinusitis 5 (4.3) 7 (2.4) 2 (1.2)
Other causes 1 (0.9) 2 (0.7) 1 (0.6)
Total 117 (100) 295 (100) 168 (100)
Emergency discharge    
Asthma exacerbation 50 (42.7 ) 135 (44.6 ) 86 (51.2)
Asthma-COPD overlap 6 (5.1) 8 (2.9) 5 (3.0)
Pneumonia 11 (9.4) 22 (8.7) 21 (12.5)
Unspecified respiratory infection 9 (7.7) 26 (8.6) 12 (7.1)
Otitis 1 (0.9) 6 (2.2) 2 (1.2)
Sinusitis 4 (3.4) 12 (4.2) 3 (1.8)
Dyspnoea 3 (2.6) 4 (1.9) 2 (1.2)
Pulmonary embolism 3 (2.6) 4 (1.3) 4 (2.4)
Arrhythmia 4 (3.4) 20 (6.4) 3 (1.8)
Coronary disease or suspicion 9 (7.7) 15 (4.8) 10 (5.9)
Heart failure 1 (0.9) 4 (1.6) 4 (2.4)
Thoracic pain 8 (6.8) 11 (3.8) 2 (1.2)
Allergic reaction 1 (0.9) 4 (1.3) 1 (0.6)
Hyperventilation 4 (3.4) 6 (2.2) 2 (1.2)
Haemoptysis 1 (0.9) 2 (0.6) 1 (0.6)
Other causes 2 (1.8) 16 (5.4) 10 (6.0)
Total 117 (100) 295 (100) 168 (100)