Sex-differential effects of diphtheria-tetanus-pertussis vaccine for the outcome of paediatric admissions? A hospital based observational study from Guinea-Bissau

Among DTP-vaccinated children, female in-hospital mortality was higher than male in-hospital mortality and DTP-vaccination tended to be associated with higher mortality in girls. The data are consistent with DTP having negative effects on mortality for girls. Further studies are necessary to design the optimal vaccination programme for both sexes.