Value of refined care in patients with acute exacerbation of chronic obstructive pulmonary disease

Table 1 Comparison of expectoration effect between two groups of patients, n (%)

Group	n	Obviously effective	Effective	Ineffective
Refined care	61	38 (62.3)	19 (31.15)	4 (6.56)
Control	59	26 (44.07)	25 (42.37)	8 (13.56)
Z		-2.080
P value		0.038

Table 2 Comparison of sputum suction with negative pressure between the two groups, n (%)

Group	n	Yes	No
Refined care	61	14 (22.95)	47 (77.05)
Control	59	26 (44.07)	33 (55.93)
χ2		6.018
P value		0.014

Table 3 Arterial blood gas monitoring of two groups of patients (mean ± SD)

Group	n	PaO2 (mmHg)		PaCO2 (mmHg)
		Before intervention	After intervention	Before intervention	After intervention
Refined care	61	58.6 ± 5.0	85.2 ± 6.11	58.2 ± 6.1	42.9 ± 4.71
Control	59	58.3 ± 5.7	83.4 ± 6.81	57.8 ± 5.0	44.7 ± 6.01
t		0.307	1.527	0.392	-1.833
P value		0.760	0.129	0.696	0.069

¹Compared with this group before intervention, P < 0.05.

Table 4 Comparison of medical research council scores between the two groups (mean ± SD)

Group	n	MRC		t	P value
		Before intervention	After intervention
Refined care	61	3.44 ± 0.52	1.82 ± 0.50	17.387	0.000
Control	59	3.58 ± 0.60	2.10 ± 0.55	14.072	0.000
t		-1.367	-2.920
P value		0.174	0.004

MRC: Medical Research Council.

Table 5 Comparison of quality of life scores between the two groups (mean ± SD)

Group		n	Symptom part		Active part
			Before intervention	After intervention	Before intervention	After intervention
1	Refined care	61	51.4 ± 8.5	76.8 ± 9.01	44.2 ± 7.4	71.9 ± 5.51
	Control	59	49.2 ± 6.2	71.0 ± 7.41	45.8 ± 6.6	67.7 ± 7.81
	t		1.615	3.849	-1.249	3.418
	P value		0.109	0.000	0.214	0.001
2			Disease impact		SGRQ score
			Before intervention	After intervention	Before intervention	After intervention
	Refined care	61	47.2 ± 6.1	78.5 ± 8.51	47.6 ± 6.2	75.7 ± 7.51
	Control	59	49.4 ± 6.6	75.8 ± 7.61	48.1 ± 6.8	71.5 ± 5.81
	t		-1.897	1.832	-0.421	3.424
	P value		0.060	0.069	0.674	0.001

¹Compared with this group before intervention, P < 0.05.

SGRQ: St. George’s Respiratory questionnaire.