TY - JOUR
T1 - A social network approach to estimating seroprevalence in the United States
AU - Killworth, Peter D.
AU - Johnsen, Eugene C.
AU - McCarty, Christopher
AU - Shelley, Gene Ann
AU - Bernard, H. Russell
N1 - Funding Information:
This work was conducted under NSF grant #SBR-9213615. Much of the analysis took place with the welcome hospitality of the Bureau of Economic and Business Research at the University of Florida, who also provided computing support. Ed Laumann provided a useful critique of a draft of this paper,
PY - 1998/1
Y1 - 1998/1
N2 - Results from a representative survey of respondents in Florida are given, concerning their knowledge about members of their personal network, and specifically how many people respondents know in selected subpopulations. We employ a method known as a "network scale-up method". By using a collection of subpopulations of known size, and also asking about one subpopulation (those who are seropositive) of unknown size, we make various estimates of personal network size and the size of the seropositive subpopulation. Our best (maximum likelihood, unbiased) estimates are 108 members of the network defined by "having been in contact with during the previous two years", and (approximately unbiased) 1.6 million for the seropositive subpopulation. Because of the proportional over-representation of AIDS (and presumably, therefore, seropositive) in Florida, by a factor of about two, this latter estimate could be an overestimate.
AB - Results from a representative survey of respondents in Florida are given, concerning their knowledge about members of their personal network, and specifically how many people respondents know in selected subpopulations. We employ a method known as a "network scale-up method". By using a collection of subpopulations of known size, and also asking about one subpopulation (those who are seropositive) of unknown size, we make various estimates of personal network size and the size of the seropositive subpopulation. Our best (maximum likelihood, unbiased) estimates are 108 members of the network defined by "having been in contact with during the previous two years", and (approximately unbiased) 1.6 million for the seropositive subpopulation. Because of the proportional over-representation of AIDS (and presumably, therefore, seropositive) in Florida, by a factor of about two, this latter estimate could be an overestimate.
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U2 - 10.1016/S0378-8733(96)00305-X
DO - 10.1016/S0378-8733(96)00305-X
M3 - Article
AN - SCOPUS:0031613627
SN - 0378-8733
VL - 20
SP - 23
EP - 50
JO - Social Networks
JF - Social Networks
IS - 1
ER -