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. Author manuscript; available in PMC: 2018 Feb 1.
Published in final edited form as: Clin J Pain. 2017 Feb;33(2):174–180. doi: 10.1097/AJP.0000000000000378

Table 3. Model-estimated (least squares) means and standard errors by racial groups.

Variable Non-Hispanic White Asian American
WOMAC Pain 1.67 (0.08)* 2.17 (0.09)*
5.12 (0.54)** 8.34 (0.58)**
GCPS Pain
 Female 37.21 (3.08) 59.06 (3.16)
 Male 40.89 (3.88) 46.42 (4.19)
GCPS Disability 29.73 (3.38) 41.92 (3.63)
Heat Pain Threshold 43.38 (0.39) 38.29 (0.52)
Heat Pain Tolerance
 Forearm 47.63 (0.36) 41.65 (0.63)
 Knee 47.66 (0.33) 42.67 (0.54)
Mean Pulse Pain
 Forearm 29.46 (2.98) 61.98 (3.54)
 Knee 23.42 (2.79) 64.02 (3.80)
Temporal Summation Heat Pain
 44 Celsius 0.44 (0.11) 1.13 (0.16)
2.70 (1.18)** 14.19 (2.59)**
 46 Celsius 0.74 (0.11) 1.28 (0.16)
3.99 (1.56)** 14.79 (2.33)**
 48 Celsius 1.29 (0.11) 1.53 (0.16)
8.77 (1.83)** 17.49 (2.59)**
Pressure Pain Threshold
 Forearm 5.59 (0.09)* 4.86 (0.10)*
303.48 (23.44)** 158.14 (16.43)**
 Medial knee 5.89 (0.08)* 5.19 (0.09)*
389.92 (23.14)** 206.71 (17.43)**
 Lateral knee 5.83 (0.09)* 5.30 (0.09)*
386.11 (24.85)** 229.36 (17.71)**
 Quadriceps 6.13 (0.10)* 5.19 (0.10)*
507.87 (35.62)** 217.16 (20.57)**
 Trapezius 5.67 (0.09)* 5.05 (0.10)*
322.94 (24.74)** 188.61 (18.24)**
Temporal Summation Punctate Pain 2.53 (0.08)* 3.21 (0.08)*
7.67 (1.49)** 20.61 (2.11)**

Note.

*

Natural log transformed scale.

**

Non-transformed raw scale.

-0.2 power transformed scale. WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index. GCPS: Graded Chronic Pain Scale.