Table 2.

Bivariate correlations between daily symptoms and behaviors

		Pearson’s correlation coefficient
	Mean ± SD (range)	Stiffness intensity	Fatigue intensity	Functional limitations	No. of painful body areas	No. of painful joints
Pain intensity score	26.3 ± 27.5 (0–100)	0.73*	0.48*	0.49*	0.63*	0.37*
Stiffness intensity score	24.4 ± 25.2 (0–100)		0.49*	0.46*	0.45*	0.17*
Fatigue intensity score	42.6 ± 28.2 (0–100)			0.26*	0.30*	0.17*
Functional limitations score	3.9 ± 7.3 (0–32)				0.37*	0.13*
No. of painful body areas	1.1 ± 1.5 (1–7)					0.80*
No. of painful joints	3.9 ± 5.4 (1–66)

^*P< 0.0001.