2 documents found, page 1 of 1
The representativeness of a European multi-center network for influenza-like-il...
Cantarelli, Pietro; Debin, Marion; Turbelin, Clément; Poletto, Chiara; Blanchon, Thierry; Falchi, Alessandra; Hanslik, Thomas; Bonmarin, IsabelleThe Internet is becoming more commonly used as a tool for disease surveillance. Similarly to other surveillance systems and to studies using online data collection, Internet-based surveillance will have biases in participation, affecting the generalizability of the results. Here we quantify the participation biases of Influenzanet, an ongoing European-wide network of Internet-based participatory surveillance sy...
Association between Recruitment Methods and Attrition in Internet-Based Studies
Bajardi, Paolo; Paolotti, Daniela; Vespignani, Alessandro; Eames, Ken; Funk, Sebastian; Edmunds, W. John; Turbelin, Clement; Debin, MarionInternet-based systems for epidemiological studies have advantages over traditional approaches as they can potentially recruit and monitor a wider range of individuals in a relatively inexpensive fashion. We studied the association between communication strategies used for recruitment (offline, online, face-to-face) and follow-up participation in nine Internet-based cohorts: the Influenzanet network of platform...