. Author manuscript; available in PMC: 2023 Jun 1.

Published in final edited form as: J Pain. 2022 Jan 10;23(6):1006–1024. doi: 10.1016/j.jpain.2021.12.010

Table 8.

Results of bootstrapped indirect effects tests predicting nociceptive outcomes

			Boot 95% CI
Dependent Variable	Indirect Effect	Boot SE	Lower	Upper	R²
NFR Threshold	0.282	0.259	−0.172	0.869	0.088
3-Stimulation NFR Threshold	0.010	0.172	−0.372	0.341	0.027
CPM-Pain	0.203	0.181	−0.102	0.633	0.097
CPM-NFR	0.033	0.017	0.006	0.073	0.126
TS-Pain	0.548	0.371	−0.014	1.406	0.079
TS-NFR	0.019	0.014	−0.003	0.052	0.152

Note: All models included the following covariates: sex, age, MAP, BMI, general health perception, education, income, and trauma exposure. CPM/TS models controlled for the stimulation intensity of the electric stimulations delivered. CPM=conditioned pain modulation. NFR=nociceptive flexion reflex. TS=temporal summation. R-squared values represent the proportion of variance explained in the nociceptive outcome by the model.