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Table 4 external sources of data

From: Identifying the determinants of premature mortality in Russia: overcoming a methodological challenge

Narcology Dispensary.
• Registration at the Izhevsk Narcology Dispensary results in an official record of registration. • Circumstances leading to registration include being arrested for an alcohol-related offence, compulsory referral by a doctor at a polyclinic or hospital, or voluntary registration by self, or the family of a patient. • Many of those who display hazardous drinking behaviours are registered for treatment at the Narcology service at some point.
Social Security bureau
• This bureau holds official records of any disability benefit of which people are in receipt. • The list is definitive and exhaustive, since it is the means by which payments are regulated. • Since the purpose of this list is to control financial payments to citizens, it is believed to be accurate and complete. • Records are identifiable by name, date of birth and address, allowing reliable record linkage. • Details include class of disability and date of registration. • These data can be compared with the questionnaire item on disability registration.
The City of Izhevsk Police database
• This database holds all records of prison stays. • It is unaffected by bias, since there are no means by which a record can be avoided if a person has spent time in prison. • Again, records are identifiable by name, date of birth and address, allowing reliable record linkage. • Presence/absence of a record can be compared with the questionnaire item regarding whether the index has ever spent time in any prison.