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Table 5 Comparison of baseline demographic and clinical characteristics between survivors and patients without six month follow-up

From: Association between inhaled nitric oxide treatment and long-term pulmonary function in survivors of acute respiratory distress syndrome

Parameter Survivors No 6-Month Follow-up P-Value
Age (years) N 92 293  
  Mean ± SD 46.4 ± 15.9 50.9 ± 17.4 0.044
  Range 16.8 - 84.0 17.6 - 87.0  
Sex, n (%) Male 44 (47.8%) 161 (54.9%) 0.281
  Female 48 (52.2%) 132 (45.1%)  
Race, n (%) Caucasian 77 (83.7%) 227 (77.5%) 0.423
  Black 9 (9.8%) 44 (15.0%)  
  Other 6 (6.5%) 22 (7.5%)  
Height (cm) N 90 277  
  Mean ± SD 169.1 ± 10.2 169.2 ± 11.6 0.856
Weight (kg) N 92 292  
  Mean ± SD 80.5 ± 21.9 79.4 ± 20.1 0.840
Causes of ARDS,a n (%)     
Pneumonia   35 (38.0%) 142 (48.5%) 0.093
Toxic Gas Inhalation   0 (0%) 0 (0%) 1.000
Acute Pancreatitis   4 (4.3%) 12 (4.1%) 1.000
Masssive Blood Transfusion   15 (16.3%) 31 (10.6%) 0.144
Fat Emboli   3 (3.3%) 7 (2.4%) 0.708
Aspiration Pneumonitis   18 (19.6%) 72 (24.6%) 0.397
Pulmonary Contusion   18 (19.6%) 51 (17.4%) 0.642
Post-Partum ARDS   2 (2.2%) 1 (0.3%) 0.143
Multiple Trauma   29 (31.5%) 74 (25.3%) 0.280
Elective or Emergency Surgical Procedures   29 (31.5%) 100 (34.1%) 0.705
Patient History, n (%)     
Preexisting steroid use   11 (12.0%) 34 (11.6%) 1.000
Asthma   9 (9.8%) 30 (10.2%) 1.000
COPD   12 (13.0%) 36 (12.3%) 0.857
Tobacco use   47 (51.1%) 121 (41.3%) 0.117
Other lung diseaseb   0 (0%) 18 (6.1%) 0.009
  1. aPatients may have more than one cause of ARDS. bPatients may have more than one preexisting disease including: cancer, bronchitis, amiodarone toxicity, and status/post lung resection. ARDS, acute respiratory distress; COPD, chronic obstructive pulmonary disorder; N, number; NO, nitric oxide.