Application of ecological momentary assessment in stress-related diseases

Table 2 Consistency between recalled headache intensity and momentary headache intensity for the two subgroups of patients with tension-type headache

	low SD group		high SD group
	Mean (SD)	ICC (A, 1) (95% C.I.)	Mean (SD)	ICC (A, 1) (95% C.I.)
Recalled headache intensity and	54.7 (22.5)		59.5 (17.8)
mean headache intensity of all recordings	41.3 (23.2)*	0.75 (0.04, 0.93)	33.5 (16.8)*	0.21 (-0.11, 0.56)
mean headache intensity of scheduled recordings only	41.1 (22.4)*	0.75 (0.00, 0.93)	29.2 (16.2)*	0.16 (-0.09, 0.48)
mean headache intensity of event-contingent recordings only	60.3 (23.0)	0.81 (0.41, 0.95)	66.8 (12.2)	0.21 (-0.22, 0.60)
mean headache intensity of recordings when headaches were present	44.7 (19.0)*	0.77 (0.24, 0.92)	40.5 (13.0)*	0.29 (-0.11, 0.65)
maximal headache intensity of all recordings	71.5 (19.0)*	0.64 (-0.08, 0.89)	83.0 (11.7)*	0.23 (-0.10, 0.59)

ICC (A, 1), intraclass correlation coefficient of absolute agreement; SD, standard deviation; C.I., confidence interval.
* P < 0.001, vs. recalled headache intensity.
Recalled headache intensity was compared with some indices of momentary headache intensity.
High SD group is a group of patients whose headache intensity was highly variable.

ISSN: 1751-0759