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. 2017 Jan 12;7:40007. doi: 10.1038/srep40007

Table 1. Demographic and clinical details of the study sample.

Parameter
N 28
Gender [male:female] 11:17
Age [years] 29.4 ± 6.3
Height [cm] 171.7 ± 8.7
Pain Catastrophizing Score 11.9 ± 7.7
Neutral unpleasantness [yes:no] 0:28
Neutral pain [yes:no] 0:28
Cold unpleasantness [yes:no] 5:23
Rating [NRS]* 3.2 ± 2.8
Cold pain [yes:no] 1:27
Rating [NRS]* 2 ± 0
Warm unpleasantness [yes:no] 4:24
Rating [NRS]* 1 ± 0
Warm pain [yes:no] 1:27
Rating [NRS]* 1 ± 0
TGI unpleasantness [yes:no] 13:15
Rating [NRS]* 3.7 ± 2.1
TGI pain [yes:no] 3:25
Rating [NRS]* 3.7 ± 2.5

*Rating was only given by those individuals who indicated unpleasantness or pain, respectively.

NRS: Numeric rating scale (0 = no pain, 10 = most bearable pain).

TGI: Thermal Grill Illusion (interlaced application of cold and warm).

Results are displayed as mean ± standard deviation.