Analysis of sleep quality, disease uncertainty, and psychological tolerance in patients undergoing chemotherapy for digestive tract malignancies

Table 4 Comparison of Connor-Davidson Resilience Scale scores between sleep disorder group and normal sleep group (mean ± SD)

Group	Resilience	Self-improvement	Optimistic	Total score
Sleep disorders group (n = 78)	25.48 ± 2.63	17.15 ± 1.78	5.71 ± 0.61	48.32 ± 4.96
Normal sleep group (n = 53)	28.63 ± 2.97	18.96 ± 1.93	6.34 ± 0.65	53.93 ± 5.46
t	6.383	5.520	5.650	6.099
P value	< 0.001	< 0.001	< 0.001	< 0.001