[Retracted] A Retrospective Study of Diaphragmatic Breathing Training Combined with Discharge Care Bundles in Patients with Chronic Obstructive Pulmonary Disease

Table 2

The basic information of COPD patients in the care bundle + DBT (n = 55) and the DBT group (n = 55).

Parameter	DBT group	Care bundle + DBT group
Age (years)
>60	49	45
≤60	6	10	0.274
Sex
Male	41	38
Female	14	17	0.525
BMI (kg/cm^2)	21.09 ± 1.74	20.96 ± 1.87	0.725
COPD duration (years)	3.13 ± 1.29	2.95 ± 1.37	0.475
Smoking status
Current	30	28
Former	11	15
Never	14	12	0.658
COPD severity
Moderate	35	32
Severe	20	23	0.558
Marital status
Single	5	3
Married	50	52	0.463
Employment status
Employed	3	3
Retired	52	52	1.000
Educational level
≤9 years	32	40
>9 years	23	15	0.109
FEV1 (%)	54.85 ± 13.59	52.00 ± 12.91	0.261
FEV1/FVC (%)	56.27 ± 6.95	55.76 ± 6.59	0.694
PaO2	63.25 ± 7.20	61.07 ± 8.08	0.138
PaCO2	37.44 ± 5.36	37.89 ± 5.68	0.667
6MWD	381.73 ± 118.95	414.58 ± 134.17	0.177