Year 2009–10 as most significant risk factor in Cox regression models of compensated shock, DENV-3 cases, Hospital Study, 2005–11.

1Cox regression models were created to determine risk factors associated with “compensated shock”, poor capillary refill, and cold extremities in DENV-3 cases from the Hospital study, controlling for dengue season (2009–10 and 2010–11, with 2005–9 as reference), immune response (primary versus secondary DENV infection), age (3 days since onset of symptoms). Year 2009–10 emerged as the most significant risk factor in all models, with values as indicated.