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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Pain. 2017 Jun;158(6):1069–1082. doi: 10.1097/j.pain.0000000000000886

Table 2.

SVM-based neuroimaging classification of symptom slope performance - accuracy (p-value), sensitivity, precision - based on leave-one-out cross-validation. The p-value is calculated by estimating the probability that random assignment of an improver vs. non-improver label (assuming equal numbers) could achieve this accuracy by chance.

Symptom
Pain Urinary
Time Frame
3 Months 73.1% (0.0012), 69.2%, 75.0% 48.1% (0.6086), 53.8%, 48.3%
6 Months 53.8% (0.3905), 46.2%, 54.5% 42.3% (0.9187), 46.2%, 42.9%
12 Months 59.6% (0.0790), 57.7%, 60.0% 40.4% (0.9188), 42.3%, 40.7%