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Table 1 Baseline characteristics of patients with Influenza subtype H1N1 compared to other than H1N1 during the outbreak of 2017

From: Clinical characteristics and outcomes of patients with H1N1 influenza pneumonia admitted at a tertiary care hospital in Karachi, Pakistan

Characteristic H1N1 (N = 57) Other than H1N1 (N = 31) p-value
Mean Age ± SD 53.5 ± 17.3 61.3 ± 12.6 0.035
Mean CURB score ± SD 1.9 ± 0.98 1.5 ± 0.99 0.091
Median Duration Of Illness (Range) 5 (2–10) 4 (2–7) 0.636
Gender 0.467
 Male 23 15  
 Female 34 16  
 Pregnant 6 0 0.001
Smoking status 1.000
 Current Smoker 7 4  
 Ex-Smoker 11 6  
 Non Smoker 36 20  
 Don’t know 3 1  
Co-morbids  
 Diabetes 24 12 0.757
 Hypertension 25 18 0.203
 COPD 8 4  
 Cardiac Problems 13 3  
 Obesity 5 1  
 CVA 2 0  
 Malignancy 2 1  
 Immunosuppression 7 2  
  1. Abbreviations: COPD Chronic Obstructive Pulmonary disease; CVA Cerebrovascular Accident