The source of notification for quarantine influenced understanding of the reason for quarantine.
Less than 30% of the naturopaths used the Therapeutic Goods Administration (TGA) (the Australian regulatory authority for therapeutic goods) website as a source of notification of adverse events.
An alternative method of operation is proposed which involves splitting the personal identifiers from the medical details at the source of notification, and separately encrypting each part using asymmetrical (public key) cryptographic methods.
This is consistent with the possibility that registration might be slightly more complete for patients with more aggressive cancers (because they are more likely to be seen by specialist clinicians) and for patients who die (because the death certificate is a source of notification to the CRs).
So far, discussion has centred around the partitioning, at source, of notifications into: a) a directly and indirectly identifiable segment; and b) a potentially re-identifiable segment, and the strict maintenance of this separation subsequently.
19 20 Briefly, patients were identified using multiple sources of notification by specially trained study nurses and fieldworkers.
Other sources of notification were from professional associations (88%) and professional association journals, website or email discussion lists (86%), CPE (69%) and informal discussion with colleagues (60%).
However, in Victoria, physicians and laboratories were required to report these infections, making it unlikely that both sources of notification would incorrectly report the residential address.
A simple form of capture-recapture, stratifying for factors that may affect the probability of notification (Hook and Regal, 1995), is appropriate for the National Registry of Childhood Tumours (NRCT), as there are two principal sources of notification.
The major sources of notification to the WARDA are hospitals and private practitioners, WA Department of Health databases (midwives', mortality, and hospital morbidity systems), and investigative and treatment centres (cytogenetic, pathology, and genetics services).
Moreover, HES data are clearly not independent of other hospital-based sources of notification; in particular, the cross-check could not detect any unregistered children who were treated by non-NHS clinicians, or were diagnosed only around the time of death.
