Nota de campo
Sesgos de confusión por indicación y gravedad en estudios observacionales
Confounding bias due to indication and severity in observational studies
Javier Nuevoa,
, Mónica Tafallaa, Luis Corderoa, Montserrat Ruizb, Eva Calvob, Javier Románc, Jesús Mayod
a Departamento Médico, AstraZeneca Farmacéutica Spain S.A., Madrid, España
b Departamento de Proyectos Sanitarios, Ibermutuamur M.A.T.E.P.S., Madrid, España
c Consejo Médico, Ibermutuamur M.A.T.E.P.S., Madrid, España
d Departamento Médico de Contingencias Profesionales, Ibermutuamur M.A.T.E.P.S., Madrid, España
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