The relationship between self-reported and registry-based data on use of psychoactive medications in postmenopausal women

Table 2 Comparison of self-reports and the National prescription register data for psychoactive medication and diuretics

	Self-reported
	Any psychoactive medication		Antidepressants		Other psychoactive medication without antidepressants		Diuretics ^b
	yes	no	yes	no	yes	no	yes	no
Prescription register
Yes ^a	724	914	426	351	250	611	1,039	210
No	152	9,241	66	10,188	344	9,826	197	9,585
Sensitivity	0.44		0.55		0.29		0.83
Specificity	0.98		0.99		0.97		0.98
κappa	0.527*		0.652*		0.299*		0.815*

* P value < 0.001.
^a Purchased the given medication within four months before response to postal enquiry.
^b The group includes all diuretics users.

ISSN: 1471-244X