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2. Panel stacking is a threat to consensus statement validity

Author

Kepp, K. P., Aavitsland, P., Ballin, M., Balloux, F., Baral, S., Bardosh, K., Bauchner, H., Bendavid, E., Bhopal, R., Blumstein, D. T., Boffetta, P., Bourgeois, F., Brufsky, A., Collignon, P. J., Cripps, S., Cristea, I. A., Curtis, N., Djulbegovic, B., Faude, O., Flacco, M. E., Guyatt, G. H., Hajishengallis, G., Hemkens, L. G., Hoffmann, T., Joffe, A. R., Klassen, T. P., Koletsi, D., Kontoyiannis, D. P., Kuhl, E., La Vecchia, C., Lallukka, T., Lambris, J., Levitt, M., Makridakis, S., Maltezou, H. C., Manzoli, L., Marusic, A., Mavragani, C., Moher, D., Mol, B. W., Muka, T., Naudet, F., Noble, P. W., Nordström, Anna, Nordström, P., Pandis, N., Papatheodorou, S., Patel, C. J., Petersen, I., Pilz, S., Plesnila, N., Ponsonby, A. -L, Rivas, M. A., Saltelli, A., Schabus, M., Schippers, M. C., Schünemann, H., Solmi, M., Stang, A., Streeck, H., Sturmberg, J. P., Thabane, L., Thombs, B. D., Tsakris, A., Wood, S. N., Ioannidis, J. P. A., Kepp, K. P., Aavitsland, P., Ballin, M., Balloux, F., Baral, S., Bardosh, K., Bauchner, H., Bendavid, E., Bhopal, R., Blumstein, D. T., Boffetta, P., Bourgeois, F., Brufsky, A., Collignon, P. J., Cripps, S., Cristea, I. A., Curtis, N., Djulbegovic, B., Faude, O., Flacco, M. E., Guyatt, G. H., Hajishengallis, G., Hemkens, L. G., Hoffmann, T., Joffe, A. R., Klassen, T. P., Koletsi, D., Kontoyiannis, D. P., Kuhl, E., La Vecchia, C., Lallukka, T., Lambris, J., Levitt, M., Makridakis, S., Maltezou, H. C., Manzoli, L., Marusic, A., Mavragani, C., Moher, D., Mol, B. W., Muka, T., Naudet, F., Noble, P. W., Nordström, Anna, Nordström, P., Pandis, N., Papatheodorou, S., Patel, C. J., Petersen, I., Pilz, S., Plesnila, N., Ponsonby, A. -L, Rivas, M. A., Saltelli, A., Schabus, M., Schippers, M. C., Schünemann, H., Solmi, M., Stang, A., Streeck, H., Sturmberg, J. P., Thabane, L., Thombs, B. D., Tsakris, A., Wood, S. N., and Ioannidis, J. P. A.

Abstract

Consensus statements can be very influential in medicine and public health. Some of these statements use systematic evidence synthesis but others fail on this front. Many consensus statements use panels of experts to deduce perceived consensus through Delphi processes. We argue that stacking of panel members toward one particular position or narrative is a major threat, especially in absence of systematic evidence review. Stacking may involve financial conflicts of interest, but nonfinancial conflicts of strong advocacy can also cause major bias. Given their emerging importance, we describe here how such consensus statements may be misleading, by analyzing in depth a recent high-impact Delphi consensus statement on COVID-19 recommendations as a case example. We demonstrate that many of the selected panel members and at least 35% of the core panel members had advocated toward COVID-19 elimination (Zero-COVID) during the pandemic and were leading members of aggressive advocacy groups. These advocacy conflicts were not declared in the Delphi consensus publication, with rare exceptions. Therefore, we propose that consensus statements should always require rigorous evidence synthesis and maximal transparency on potential biases toward advocacy or lobbyist groups to be valid. While advocacy can have many important functions, its biased impact on consensus panels should be carefully avoided.

Published
2024
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20. Newcastle Heart Project

Author

Fischbacher, C. M., White, M., Bhopal, R., Unwin, N., and Alberti, K. G. M. M.

Published
2002

25. Authorship

Author

Barker, Andrew, Powell, Richard A., Bhopal, R. S., Rankin, J. M., McColl, E., Stacy, R., Pearson, P. H., Kaner, E. F. S., Thomas, L. H., Vernon, B. G., and Rodgers, H.

Published
1997

35. The Lancet's chronic diseases series

Author

Feeney, Larkin, Kelly, Brendan D., Malaviya, A.N., Lau, C.S., Singh, R.R., Hotez, Peter, Stoever, Kari, Fenwick, Alan, Molyneux, David, Savioli, Lorenzo, Beaglehole, Robert, Epping-Jordan, JoAnne E., Strong, Kathleen, Mathers, Colin, Bhopal,R., Abubakari, A.R., Liu, Tao, Adil, Mahmood, Adelman, Carol C., and Norris, Jeremiah

Published
2006

44. The governance of overseas surgical collaborations – BFIRST/BSSH

Author

Jemec, B., primary, Lam, W., additional, Hodgson, S.P., additional, Jones, J.W.M., additional, Eckersley, R., additional, Nyamulani, N., additional, Riaz, M., additional, Fell, M., additional, Nicholas, R., additional, Bhopal, R., additional, Mendis, Kapila, additional, Khan, M.R. Karim, additional, and Sommerlad, B., additional

Published
2021
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48. Diabetes incidence in a high‐risk UK population at 7 years: linkage of the Prevention of Diabetes and Obesity in South Asians (PODOSA) trial to the Scottish Diabetes Register

Author

Bhopal, R., primary, Douglas, A., additional, Sheikh, A., additional, Wild, S. H., additional, Gill, J. M. R., additional, Sattar, N., additional, Lean, M. E. J., additional, McKnight, J., additional, Tuomilehto, J., additional, Wallia, S., additional, and Cezard, G., additional

Published
2020
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