In addition, the disease variable used from the 45 and Up Study survey was based on individuals reporting that they had been 'treated in last month' rather than 'ever been diagnosed' and that health, w3 FA supplement use and healthcare use is self-reported by the participants.
In 1969 a national tuberculosis register based on individual reports according to the communicable disease act was set up; since 1989 this register is administered by SMI.
The primary outcome was acute coronary events comprising either MI or ACS (unstable angina, MI or cardiac death), based on individual reports.
The GM Contamination Register is based on individual incidents reported by governmental and inter-governmental authorities, non governmental organisations (NGO)s and/or the media.
These peer measures are not based on individuals' self-reports which are subject to potential biases [16] but are drawn from the responses of the peers themselves.
It is also important to note that the HIV status disclosure rates reported in this paper are largely based on individual self-reports and might not reflect the true HIV status disclosure rates in the community.
The elements of the intervention were educational outreach visits to the participants' continuing medical education groups comprising presentation and discussion of evidence-based antibiotics prescribing for RTIs, collection of individual prescription data, audit based on individual feedback reports, as well as a one-day regional seminar.
Although most of the studies on FGM-related practice are based on individual self-reports, through which respondents verbally describe their own or their daughter's status [ 8, 11, 12, 21], the validity of the findings may be compromised.
