Relationship between preoperative psychological stress and short-term prognosis in elderly patients with femoral neck fracture

Table 4 Receiver operating characteristic curve analysis

Variables	AUC	P value	95%CI	Sensitivity	Specificity	Optimum cutoff value
ANX	0.742	< 0.001	0.641-0.844	0.857	0.533	24.5
DEP	0.854	< 0.001	0.760-0.947	0.786	0.880	32.5
Garden classification of FNF	0.688	0.003	0.582-0.794	0.821	0.554	0.5
Cause of fracture	0.644	0.021	0.534-0.755	0.821	0.467	0.5
FNF reduction quality	0.648	0.018	0.524-0.772	0.536	0.783	2.5
Length of hospital stay	0.749	< 0.001	0.640-0.858	0.750	0.761	20.5

FNF: Femoral neck fracture; ANX: Anxiety; DEP: Depression; AUC: Area under the curve; CI: Confidence interval.