. 2022 Jul 1;56(11):1116–1130. doi: 10.1093/abm/kaac034

Table 1.

Means, Standard Deviations, and Intercorrelations for all Study Variables (N = 302).

Variable	M	SD	NA Ethn	Stress	Psych Dis	Insomn	Fatigue	SleepQ	Heat Tol	Cold Tol	Isch Tol	Elec Tol	TS-Pain	TS-NFR	CPM-Pain	CPM-NFR	Age	Sex	Phys Act	BMI
NA Ethn	—	—	1
Stress	13.848	5.971	0.123^*	1
Psych Dis^#	0.122	0.087	0.146^*	0.706^*	1
Insomn	6.752	4.717	0.203^*	0.405^*	0.543^*	1
Fatigue	27.354	9.576	0.218^*	0.467^*	0.506^*	0.576^*	1
SleepQ	1.129	0.711	0.198^*	0.338^*	0.426^*	0.782^*	0.473^*	1
Heat Tol	45.610	1.743	−0.085	−0.109	−0.009	0.025	0.027	0.057	1
Cold Tol^#	1.707	0.358	−0.216^*	0.061	0.068	0.015	−0.043	0.054	0.438^*	1
Isch Tol^#	2.147	0.413	−0.114^*	−0.022	0.023	0.038	−0.009	0.013	0.461^*	0.394^*	1
Elec Tol	30.768	12.342	0.023	0.094	0.085	0.118^*	0.030	0.129^*	0.404^*	0.408^*	0.379^*	1
TS-Pain	11.997	13.063	0.098	0.091	0.162^*	0.234^*	0.152^*	0.175^*	−0.083	−0.080	−0.109	−0.055	1
TS-NFR	0.555	0.489	0.076	0.014	0.063	0.066	0.040	0.044	0.111	−0.047	0.082	0.075	0.198^*	1
CPM-Pain	−6.750	7.351	−0.118^*	0.026	0.068	0.106	−0.070	0.072	−0.063	0.130^*	0.016	0.102	0.015	−0.085	1
CPM-NFR	−0.007	0.370	0.067	0.070	0.088	0.062	0.074	0.063	0.001	−0.187^*	−0.165^*	−0.112	0.044	0.271^*	−0.011	1
Age^#	1.437	0.165	0.106	−0.201^*	−0.083	0.020	−0.029	−0.084	0.039	−0.190^*	−0.051	−0.007	0.180^*	0.327^*	0.158^*	0.160^*	1
Sex	—	—	0.085	−0.012	−0.021	−0.033	−0.087	−0.057	−0.372^*	−0.147^*	−0.180^*	−0.052	0.062	−0.121^*	0.042	−0.154^*	0.045	1
Phys Act^#	3.762	0.447	0.085	0.062	0.076	0.151^*	0.076	0.144^*	0.086	0.050	0.037	0.120^*	0.173^*	0.126^*	0.116^*	0.115^*	0.066	−0.117^*	1
BMI	25.017	4.209	0.204^*	0.000	0.040	0.081	0.060	0.012	0.017	−0.126^*	−0.180^*	0.077	−0.006	0.126^*	0.034	0.142^*	0.346^*	−0.081	0.061	1
Gen Hlth	79.497	13.397	−0.062	−0.316^*	−0.320^*	−0.263^*	−0.355^*	−0.198^*	0.025	0.074	−0.037	−0.062	0.021	−0.013	0.042	0.014	0.082	0.003	0.011	−0.059

Note: All values in the table were created after transformations, winsorizing outliers, and multiple imputation. Native American (NA) ethnicity was coded 0 = non-Hispanic white, 1 = Native American Sex was coded 0 = male, 1 = female. Psych Dis = psychological distress. SleepQ = sleep quality. TS = temporal summation. NFR = nociceptive flexion reflex. CPM = conditioned pain modulation. CPM variables were coded such that lower (negative) scores were associated with greater inhibition, whereas higher (positive) scores were associated with facilitation. Phys Act = physical activity. BMI = body mass index. Gen Hlth = general health perception. Tol = tolerance.

Log10 transformed.

p < .05.