Value of Diaphragm Ultrasonography for Extubation: A Single-Blinded Randomized Clinical Trial

Table 1

Demographics and baseline characteristics.

US (n = 20)					Control (n = 20)
	Median	Percentile			Median	Percentile
		25		75		25	75
Age	78	59		80.8	67	55.3	76	0.244
BMI	26	22		30	24	22	28	0.636
Female	14 (70%)				10 (50%)
Admission diagnosis
Surgical	7 (35%)				6 (30%)
Clinical	13 (65%)				14 (70%)
Intubation reason
Coma	5 (25%)				10 (50%)
Respiratory failure	15 (75%)				10 (50%)
Presence of infection
No infection	1 (5%)				4 (20%)			0.357^●
Infection only	13 (65%)				11 (55%)
Sepsis	6 (30%)				5 (25%)
pH	7.45	7.42		7.47	7.44	7.40	7.48	0.465^◊
pCO2 (mmHg)	38	35.9		45	37.6	32	41	0.223
pO2 (mmHg)	92.5	80.1		109.8	87.5	68.5	109	0.298
MAP (mmHg)	88 ± 14				91 ± 14			0.590^◊
Fluid balance (mL)	315	−468	770		480	−265	988	0.379
D vitamin
No result	3 (15%)				5 (25%)			0.235^●
Low	8 (40%)				11 (55%)
Normal	9 (45%)				4 (20%)
Atrial natriuretic peptide
No result	3 (15%)				5 (25%)			0,537
High	9 (45%)				10 (50%)
Normal	8 (40%)				5 (25%)
CRP
Normal	4 (20%)				4 (20%)			0,653
High	16 (80%)				16 (80%)

Mann–Whitney; Fisher; ^●Chi-square, ^◊Student’s t-test; Mann–Whitney test; ultrasound group (US); mean arterial pressure (MAP); C-reactive protein (CRP).