High-flow nasal oxygen therapy versus conventional oxygen therapy and non-invasive mechanical ventilation in patients with acute respiratory failure and post-mechanical ventilation

The Egyptian Journal of Bronchology

Table 1 Demographic and clinical characteristics in group A

	N	Min.	Max.	Mean	SD
Age	69	18	86	54.12	18.46
		N		%
Gender	Male	34		49.3%
	Female	35		50.7%
	Total	69		100%
Diagnosis		N		%
COPD		18		26.1%
Pneumonia		16		23.2%
Interstitial lung disease		12		17.4%
Bronchiectasis		6		8.7%
Tuberculosis		4		5.8%
Obese hypoventilation		3		4.3%
Pleural effusion		3		4.3%
Pulmonary embolism		3		4.3%
Bronchial asthma		1		1.4%
Kyphoscoliosis		1		1.4%
Lung abscess		1		1.4%
Pulmonary edema		1		1.4%
Type of lung disease	Restrictive	39		56.5%
Type of lung disease	Obstructive	30		43.5%
Type of respiratory failure	Type I	32		46.4%
Type of respiratory failure	Type II	37		53.6%
Comorbidity		N		%
Hypertension		15		21.7%
Diabetes		14		20.3%
Ischemic heart disease		7		10.1%
Cor-pulmonale		7		10.1%
DVT		4		5.8%
Renal impairment		3		4.3%
Chronic liver disease		3		4.3%
Heart failure		1		1.4%
Rheumatoid arthritis		1		1.4%
Cancer		1		1.4%
		Min.	Max.	Mean	SD
Days of mechanical ventilation		1	19	3.37	3.85
Days of ICU stay		2	24	6.86	4.57
Mechanical ventilation	Yes	27		39.1%
Mechanical ventilation	No	42		60.9%
Cause of discharge	Death	21		30.4%
Cause of discharge	Improvement	48		69.6%

N Number, Min Minimum, Max Maximum, SD Standard deviation, COPD Chronic obstructive pulmonary disease, DVT Deep venous thrombosis