Table 2.

Quantitative Sensory Testing

Test	Low Back Pain (N=31)	No-Pain Control (N=31)	P-value
Cold Detection Threshold [°C; Mean (SE)]
Remote area	27.96 (0.40)	27.58 (0.98)	0.72
Back area	28.30 (0.30)	28.11 (0.97)	0.85
Warm Detection Threshold [°C; Mean (SE)]
Remote area	35.89 (0.45)	34.54 (1.23)	0.3
Back area	35.91 (0.33)	33.97 (1.21)	0.13
Cold Pain Threshold [°C; Mean (SE)]
Remote area	19.47 (1.20)	14.24 (2.13)	0.04*
Back area	21.12 (1.28)	15.43 (2.16)	0.03*
Heat Pain Threshold [°C; Mean (SE)]
Remote area	39.58 (0.71)	37.37 (1.9)	0.29
Back area	38.5 (0.61)	36.56 (1.9)	0.33
Pressure Pain Threshold [KPa; Mean (SE)]
Remote area	190.52 (18.15)	215.15 (24.81)	0.43
Back area	174.28 (25.24)	310.68 (38.76)	0.005*
Mechanical Pain Threshold [mN; Mean (SE)]
Remote area	6.01 (0.15)	6.17 (0.30)	0.64
Back area	5.59 (0.20)	6.02 (0.30)	0.24
Mechanical Sensitivity [NRS 0–10; Mean (SE)]
Remote area	2.27 (0.35)	0.53 (0.14)	0.0001*
Back area	3.60 (0.45)	0.97 (0.22)	0.0001*
Wind-up Ratio [Mean (SE)]
Remote area	1.26 (0.10)	0.38 (0.10)	0.0001*
Back area	1.44 (0.13)	0.52 (0.14)	0.0001*
Dynamic Mechanical Allodynia [Mean (SE)]
Remote area	0.38 (0.14)	0.25 (0.09)	0.42
Back area	1.60 (0.42)	0.42 (0.12)	0.01*

^*reflects p<0.05