REPLY
Name-Based Surveillance for HIV-Infected Persons
Dennis H. Osmond, PhD;
Karen Vranizan, MA; and
Andrew Bindman, MD
6 June 2000 | Volume 132 Issue 11 | Page 923
IN RESPONSE:
Brewer and Potterat maintain that self-reported data invalidate our finding that the number of partners of HIV-infected persons notified of risk was not increased by a confidential rather than an anonymous HIV test in states with name-based HIV surveillance. Although we agree that self-report is likely to be inaccurate, the question is not the validity of a particular number but whether the lack of difference between the two groups is valid.
In calculating the mean number of partners notified, we probably inflated the number of partners notified in the confidential test group by assuming that all names given to the health department were notified partners and by not ruling out double-counting of partners self-notified and those given to the health department to inform. Landis and colleagues (1) found that under likely optimal conditions, only 50% of names given to the health department were notified.
To change our finding, virtually all self-notified partners (58% in the confidential test group) and none of the health department referrals would have to be invalid. If we assume that 1 in 3 self-notified partners and 1 in 2 partners notified by the health department are valid, the difference between the means is still nonsignificant: 1.3 in the anonymous group and 1.5 in the confidential group.
Despite the randomized design of Landis and colleagues' study, there are difficulties in generalizing the results. Only 46% of eligible persons participated, and eligibility requirements may have excluded many tacit refusals, reducing participation to as low as 26%. The partners in the self-referral group were given only 1 month to come to the health department before they were contacted by health department personnel. Because of awareness of this limit, participants assigned to self-notification may have left notification up to the health department.
The other studies Brewer and Potterat cite used self-report and therefore have no superior claim to validity (2-4). The average number of partners informed in our study may have been higher because we asked about partners retrospectively from the time of AIDS diagnosis and thus had a longer study period than other studies.
Our study examined partner notification in a random sample of all AIDS cases from several states. We do not think that using self-reported data introduced a bias that can explain the lack of effect of partner notification by health departments.
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Author and Article Information
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University of California, San Francisco; San Francisco, CA 94143 (Osmond)
San Francisco General Hospital; San Francisco, CA 94110 (Vranizan)
San Francisco General Hospital; San Francisco, CA 94110 (Bindman)
1. Landis SE, Schoenbach VJ, Weber DJ, Mittal M, Krishan B, Lewis K, et al. Results of a randomized trial of partner notification in cases of HIV infection in North Carolina N Engl J Med. 1992;326:101-6.[Abstract]
2. Stempel RR, Moulton JM, Moss AR. Self-disclosure of HIV-1 antibody test results: The San Francisco General Hospital Cohort AIDS Educ Prev. 1995;7:116-24.[Medline]
3. Perry S, Ryan J, Fogel K, Fishman B, Jacobsberg L. Voluntarily informing others of positive HIV test results: patterns of notification by infected gay men Hosp Commun Psych. 1990;41:549-51.
4. Perry SW, Card CA, Moffatt M Jr, Ashman T, Fishman B, Jacobsberg LB. Self-disclosure of HIV infection to sexual partners after repeated counseling AIDS Educ Prev. 1994;6:403-11.[Medline]
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