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Table 1 Descriptive profile of the study group (n = 82)

From: Predictors of mortality of patients with acute respiratory failure secondary to chronic obstructive pulmonary disease admitted to an intensive care unit: A one year study

  Minimum Maximum Mean ± Std. Deviation
Age (years) 35 85 60 ± 10
APACHE II score 3 33 13 ± 6
PR (per minute) 46 166 105 ± 19
RR (per minute) 10 46 27 ± 10
MBP (mmHg) 20 126 89 ± 19
GCS 3 15 12.1 ± 3
pH 6.87 7.44 7.25 ± 0.19
PaCO2 (mmHg) 40.7 130.7 76.6 ± 23.5
PO2 (mmHg) 31.5 142.3 83.9 ± 41.7
HCO3 (mmHg) 5.4 55.4 32.3 ± 8.7
Serum Na (mEq/L) 115 152 136 ± 7
Serum K (mEq/L) 2.00 6.80 4.2 ± 0.9
Serum Albumin (gm%) 1.7 4.4 3.2 ± 0.7
Days on ventilator 1 33 8.7 ± 4.6
Days of ICU stay 1 35 9.6 ± 6.2
Days of hospital stay 1 63 16.3 ± 10.4
  1. RR: Respiratory rate, PR: Pulse rate, MBP: Mean blood pressure, GCS: Glasgow coma scale, Serum Na: Serum sodium, Serum K: Serum potassium.