In multivariate analysis , CD@ lymphocytes ( Relative Risk ( RR ) for a @ cells/mm@ variation = @ ; CI : @-@ @ ) , antiretroviral treatment started before inclusion ( RR = @ ; CI : @-@ @ ) and history of symptomatic malaria in early pregnancy ( RR = @ ; CI : @-@ @ ) were associated with the incidence of confirmed or suspected malaria-related fever .