Confounding may lead to overestimation of pneumococcal polysaccharide vaccine effectiveness among HIV-infected individuals.
Sogaard
Ole S
OS
Lohse
Nicolai
N
Ostergaard
Lars
L
D017088:AIDS-Related Opportunistic Infections / Q000276:immunology / Q000517:prevention & control*; D018791:CD4 Lymphocyte Count; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D022242:Pneumococcal Vaccines; D011018:Pneumonia, Pneumococcal / Q000276:immunology / Q000517:prevention & control*
C414006:23-valent pneumococcal capsular polysaccharide vaccine; D022242:Pneumococcal Vaccines