Table 3

Clinical characteristics and outcomes: comparison of patients with and without asthma (n = 473)
Characteristic Patients with asthma Patients without asthma P-Value*
No. (%) (n = 137) No. (%) (n = 336)
Tachypnea 60/137 (44) 110/336 (33) 0.07
Tachycardia 88/137 (64) 213/336 (63) 0.86
Intensive care unit admission 37/133 (28) 108/321 (34) 0.31
Mechanical ventilation 16/127 (13) 69/301 (23) 0.02
Acute respiratory distress syndrome 9/129 (7) 38/292 (13) 0.10
Sepsis syndrome 7/128 (6) 31/291 (11) 0.12
Death 5/137 (4) 32/332 (10) 0.04
Influenza antiviral agent receipt
 Any during hospitalization 101/137 (74) 270/336 (80) 0.15
 ≤ 2 days of illness onset 49/99 (50) 106/269 (39) 0.10
 ≤ 2 days of admission 79/92 (86) 219/253 (87) 0.87
 Median days from illness onset to antiviral initiation (range) 3 (0 – 18) 3 (0 – 32) 0.06
Other treatment
 Antibiotics 101/137 (74) 260/336 (77) 0.40
 Steroids 83/137 (61) 96/336 (29) <0.01

*P-Values stratified by age-group.

McKenna et al.

McKenna et al. BMC Infectious Diseases 2013 13:57   doi:10.1186/1471-2334-13-57

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