Table 3.

Estimates of performance for SpineCloud predicting physical function at 3 and 12 months after lumbar spine surgery—mJOA scale.

Model	Prediction time point	Accuracy	Sensitivity	Specificity	PPV	NPV	AUC
$\mathbf{D}$	3 months	0.49 (0.38 to 0.61)	0.31 (0.17 to 0.49)	0.62 (0.47 to 0.75)	0.36 (0.20 to 0.55)	0.57 (0.42 to 0.70)	0.49 (0.36 to 0.63)
${\mathbf{S}\mathbf{C}}_{\mathbf{pre}}$	3 months	0.63 (0.52 to 0.74)	0.38 (0.23 to 0.56)	0.81 (0.67 to 0.90)	0.58 (0.36 to 0.77)	0.65 (0.52 to 0.77)	0.54 (0.40 to 0.69)
${\mathbf{S}\mathbf{C}}_{\mathbf{0}\mathbf{m}}$	3 months	0.66 (0.55 to 0.76)	0.31 (0.17 to 0.49)	0.90 (0.78 to 0.96)	0.69 (0.42 to 0.87)	0.66 (0.53 to 0.76)	0.71 (0.59 to 0.82)
$\mathbf{D}$	12 months	0.37 (0.26 to 0.49)	0.21 (0.10 to 0.40)	0.50 (0.34 to 0.66)	0.27 (0.13 to 0.48)	0.42 (0.28 to 0.58)	0.32 (0.19 to 0.46)
${\mathbf{S}\mathbf{C}}_{\mathbf{pre}}$	12 months	0.60 (0.47 to 0.71)	0.32 (0.18 to 0.51)	0.84 (0.68 to 0.93)	0.64 (0.39 to 0.84)	0.59 (0.44 to 0.72)	0.47 (0.30 to 0.62)
${\mathbf{S}\mathbf{C}}_{\mathbf{0}\mathbf{m}}$	12 months	0.65 (0.52 to 0.76)	0.50 (0.33 to 0.67)	0.78 (0.61 to 0.89)	0.67 (0.45 to 0.83)	0.64 (0.48 to 0.77)	0.69 (0.54 to 0.82)