238 Chapter 9 Table S4 Responders versus non-responders SF-12 questionnaire: symptoms and clinical question after initial evaluation at Emergency Departmenta Characteristic SF-12 returned (n = 1720) SF-12 not returned (n = 698) Standardized difference Presenting symptoms Dyspnoea 967 (56.2) 391 (56.0) 0.4 Cough 959 (55.8) 351 (50.3) 11.0 Fever 730 (42.4) 252 (36.1) 13.0 Thoracic pain 654 (38.0) 248 (35.5) 5.2 Sputum production 539 (31.3) 193 (27.7) 8.1 Haemoptysis 71 (4.1) 24 (3.4) 3.6 Confusion 57 (3.3) 34 (4.9) 7.9 Clinical question on radiology request form Pneumonia 1209 (70.3) 450 (64.5) 12.4 Pulmonary congestion 138 (8.0) 52 (7.4) 2.1 Bronchitis 120 (7.0) 45 (6.4) 2.1 Pneumothorax 60 (3.5) 45 (6.4) 13.6 Pleural effusion 46 (2.7) 35 (5.0) 12.2 Pulmonary tumour 15 (0.9) 5 (0.7) 1.8 Atelectasis 5 (0.3) 2 (0.3) 0.1 Pulmonary metastases 2 (0.1) 5 (0.7) 9.3 Other 125 (7.3) 44 (6.3) 3.8 SF-12: Short Form-12 a Values are numbers (percentages) unless otherwise specified.
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