Table 2.

Summary of Psychophysical Outcomes with Age x Gender Interactions

	Total (N=59)	Female (N=27)	Male (N=32)		Linear Regression Models
	Median [IQR]	Median [IQR]	Median [IQR]		B	Standard error	t value	p value
Just Noticeable Pain
Temperature	33.0 [32–35]	32.0 [32–34]	34.1 [33–36]	Age Gender Age x Gender	−0.004 1.493 −0.004	0.011 0.382 0.022	−0.36 3.91 −0.18	0.72 < 0.001 0.86
Unpleasantness	1.0 [0–2]	0.0 [0–1]	1.0 [0–3]	Age Gender Age x Gender	0.003 0.161 0.004	0.002 0.084 0.005	1.35 1.91 0.83	0.18 0.06 0.41
Weak Pain
Temperature	39.0 [37–42]	39.0 [36–41]	39.2 [37–42]	Age Gender Age x Gender	0.014 1.153 −0.007	0.025 0.867 0.050	0.55 1.33 −0.14	0.59 0.19 0.89
Unpleasantness	5.0 [3–7]	4.0 [3–5]	6.0 [4–8]	Age Gender Age x Gender	0.004 0.409 0.010	0.005 0.159 0.009	0.78 2.57 1.13	0.44 0.01 0.27
Moderate Pain
Temperature	45.0 [42–47]	44.0 [42–46]	46.0 [42–47]	Age Gender Age x Gender	−0.014 0.468 0.031	0.023 0.799 0.046	−0.60 0.59 0.68	0.55 0.56 0.50
Unpleasantness	8.7 [7–11]	8.0 [6–9]	9.0 [8–12]	Age Gender Age x Gender	0.022 1.778 0.012	0.023 0.781 0.045	0.96 2.78 0.26	0.34 0.03 0.79