Predictive value of daily living score in acute respiratory failure of COPD patients requiring invasive mechanical ventilation pilot study

Table 1 Comparison of simple parameters recorded before endo-tracheal intubation in weaned and not weaned groups

	Total (n = 25)	Group A (n = 17)^a	Group B (n = 8)^a	P
	Total (n = 25)	Weaned	not weaned	P
*General characteristics*
Age,yr ^b	68 [49–81]	68 [49–81]	68.5 [51–77]	0.52
M/F	19/6	13/4	6/2	0.68
SAPS _II ^b	39 [22–79]	39 [28–79]	38.5 [22–69]	0.69
*Pulmonary status during a phase of clinical stability*
FEV₁ l ^b	0.66 [0.220-2.50]	0.710 [0.220-2.50]	0.630 [0.32-1.47]	0.60
FEV₁predicted ^b	30 [11–80]	31 [11–80]	26.5 [15–50]	0.33
PaO₂ mmHg ^b	69 [41–95]	69 [50–95]	69 [41–86]	0.52
PaCO₂ mmHg ^b	49 [30–91]	48 [30–91]	54 [40–61]	0.37
pH ^b	7.40 [7.28-7.50]	7.40 [7.33-7.50]	7.38 [7.28-7.45]	0.84
*Arterial blood gases at admission*
PaO₂/FiO₂ ^b	220 [22–250]	220 [22–250]	157 [120–250]	0,57
PaCO₂ mmHg ^b	75 [50–114]	74.5 [56–114]	76 [50–102]	0,46
pH ^b	7.25 [7.07-7.39]	7,29 [7.07-7.37]	7,24 [7.08-7.39]	0.49
*Cardiac echography at admission*
LVEF ^b	60 [30–70]	60 [40–70]	50 [30–65]	0.26
PAPs ^b	45 [25–80]	45 [25–65]	50 [30–80]	0.45
*Cause of respiratory failure*
Acute exacerbation ^a	12 (48%)	8 (47%)	4 (50%)	0.63
Pneumonia ^a	9 (36%)	5 (30%)	4 (50%)	0.37
Pulmonary embolism ^a	2 (8%)	2 (11.5%)	0 (0%)	0.43
Other ^a	2 (8%)	2 (11.5%)	0 (0%)	0.43
*Nutritional status*
BMI ^b	25 [18–37]	25 [19–36.7]	25 [18–37]	0.86
NRI ^b	82.9 [66–102]	82.8 [66–93]	80.4 [73–102]	0.73
Albumin ^b	27 [20–38]	27 [20–34]	27.5 [21–38]	0.49
Prealbumin ^b	195 [74–400]	215 [130–400]	164 [74–337]	0.50
*Corticoïds* ^a	3 (12%)	2 (11.8%)	1 (12.5%)	0.72
*ADL score* ^c	4.6 ± 1.1	5,1 ±1.1	3.7 ± 0.7	0.006

^a data are expressed as numbers (%); ^b data are expressed as median [minimum – maximum] ^c: mean ± SD.
M male, F female.

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