Impact of specialized nursing outpatient case management on post-coronary artery bypass grafting patients

Table 6 Comparison of quality of life scores between the two groups (mean ± SD, scores)

Norm	Timing	Control group (n = 51)	Case management unit (n = 52)	t	P value
Stamina	Before intervention	27.74 ± 8.26	25.83 ± 9.54	1.085	0.280
	After intervention	32.26 ± 6.97a	38.97 ± 8.15a	4.487	0.000
State of an illness	Before intervention	14.53 ± 3.85	15.01 ± 3.94	0.625	0.533
	After intervention	17.45 ± 4.11a	20.58 ± 3.89a	3.970	0.000
Medical treatment	Before intervention	4.96 ± 0.85	4.86 ± 0.94	0.566	0.573
	After intervention	5.12 ± 0.79	5.22 ± 0.85	0.618	0.538
General condition	Before intervention	7.54 ± 1.87	7.46 ± 1.93	0.214	0.831
	After intervention	8.74 ± 1.91a	9.85 ± 1.67a	3.142	0.002
Social psychology	Before intervention	15.12 ± 2.25	14.97 ± 2.31	0.334	0.739
	After intervention	17.63 ± 2.16a	19.87 ± 2.04a	5.412	0.000
Professional	Before intervention	4.25 ± 0.98	4.19 ± 1.05	0.300	0.765
	After intervention	5.77 ± 1.12a	6.85 ± 1.24a	4.636	0.000

^aP < 0.05, compared with the group before intervention.