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Table 4 Multivariate regression models of Ps and Pd as predictors of selected clinical outcomes

From: Latent variables may be useful in pain’s assessment

Model number Dependent variable Pd standardized regression coefficient p Ps standardized regression coefficient p Total R2 R2(covariates only)
1 Chronic pain 0.25 ≤0.001 0.32 ≤0.001 0.30 0.02
2 Pain “all over” −0.32 ≤0.001 0.11 0.04 0.19 0.08
3 Legs −0.35 ≤0.001 0.24 ≤0.001 0.40 0.22
4 Feet −0.25 ≤0.001 0.16 0.006 0.26 0.18
5 Knees −0.33 ≤0.001 0.22 ≤0.001 0.38 0.22
6 Hip −0.29 ≤0.001 0.12 0.02 0.24 0.14
7 Back −0.22 ≤0.001 −0.20 ≤0.001 0.25 0.16
8 Summed pain −0.42 ≤0.001 0.25 ≤0.001 0.58 0.34
9 Alzheimer’s (r) −0.07 0.107 −0.16 ≤0.001 0.06 0.03
10 Cancer (r) 0.19 ≤0.001 −0.05 0.38 0.16 0.11
11 Arthritis (r) −0.16 ≤0.001 0.15 0.001 0.14 0.09
12 CA (i) 0.03 0.42 0.02 0.67 0.01 0.01
13 Arthritis (i) −0.10 0.03 0.15 0.002 0.10 0.07
14 Both (i) −0.09 0.04 0.12 0.02 0.07 0.05
15 Opiate use −0.014 ≤0.001 0.06 0.17 0.25 0.23
16 NSAID use 0.05 0.20 0.09 0.03 0.03 0.02
17 Health −0.38 ≤0.001 0.02 0.76 0.20 0.05
18 QOL −0.47 ≤0.001 0.00 0.99 0.25 0.02
19 Life Space 0.10 0.02 0.04 0.32 0.09 0.07
20 Sleep Disturbances (Total) 0.55 ≤0.001 0.02 0.71 0.33 0.03
21 Early wakening −0.36 ≤0.001 0.07 0.19 0.18 0.05
22 Frequent wakening −0.17 ≤0.001 0.11 0.02 0.07 0.03
23 Feeling tired −0.44 ≤0.001 0.10 0.07 0.27 0.06
24 Agitation (summed) −0.19 ≤0.001 0.01 0.88 0.05 0.01
25 NPI Nighttime agitation −0.17 ≤0.001 0.02 0.68 0.04 0.01
26 NPI restless −0.05 0.23 0.01 0.88 0.00 0.00
27 NPI impatient −0.05 0.19 0.00 0.95 0.02 0.02
28 NPI Δ weight −0.08 0.06 0.02 0.62 0.02 0.01
29 NPI resistive −0.09 0.03 0.03 0.54 0.04 0.03
30 NPI sad −0.18 ≤0.001 0.01 0.77 0.06 0.02
31 5 chair stands 0.03 0.58 0.08 0.14 0.04 0.03
32 Stands safely 0.19 ≤0.001 −0.05 0.38 0.16 0.11
33 Falls (i) −0.07 0.11 −0.02 0.71 0.02 0.01
34 Falls (r) −0.32 ≤0.001 0.00 0.99 0.19 0.09
35 Fear of falling −0.29 ≤0.001 0.00 0.97 0.16 0.08
36 Nursing Home −0.08 0.04 −0.07 0.12 0.02 0.01
37 DNR declaration 0.02 0.66 0.04 0.43 0.01 0.01
38 DNR mode 0.00 0.93 0.01 0.83 0.01 0.01
39 DNR 0.03 0.53 0.05 0.40 0.01 0.00
  1. Pd = Depression related pain independent predictor variable; Ps = Somatic related pain independent predictor variable; Number of pain medications (NPainmeds); Model Covariates: Live alone, age, gender, BMI, Income, MMSE; CA = cancer; DNR = Do Not Resusitate order; (i) = informant rated; NPI = Neuropsychiatric Inventory; NSAID = non-steriodal anti-inflammatory agents; QOL = quality of life; (r) = respondant rated.