Table 2

Studies not used in the analysis due to simultaneous vaccination (see study exclusion criteria, p. 3)

Country/referenceSettingDesignNo. of childrenAge groupLength of follow-upInformation on unvaccinatedVaccinesReasons for not being included in the mortality analyses
Senegal11RuralTrial of HTMV15795–10 months5 monthsChildren not attendingDTP–IPVCohort had received DTP and BCG simultaneously. MRR =1.60 (0.76 to 3.37) for DTP2–IPV versus absent.11
Bangladesh44RuralRoutine surveillance37 8941–59 monthsOngoingNo informationBCG, DTP, MV71% received BCG and DTP simultaneously; control group undefined
India49RuralRoutine surveillance in vitamin A trial10 2741 week to 5 months2 weeksNo informationBCG, DTPProportion who received BCG and DTP simultaneously is not defined; control group undefined. Female–male MRR =1.39 (0.74 to 2.61) for DTP-vaccinated children
Papua New Guinea46RuralRoutine surveillance40481–24 months1 monthNo informationBCG, DTP, MVProportion who received BCG and DTP simultaneously is not defined; control group undefined; pigbel vaccine was used with DTP
Cebu, the Philippines58RuralRoutine surveillance14 5370–30 months6 monthsNo unvaccinated in studyBCG, DTP63% received BCG and DTP simultaneously59
Senegal48RuralRoutine surveillance within trial of acellular and whole-cell pertussis vaccine11 3690–24 months1 week, 3 monthsNo informationBCG, DTP, MV100% received BCG and DTP simultaneously; control group undefined; survival bias in one of the two cohorts
Burkina Faso45RuralRoutine surveillance90850–24 months6–8 monthsNo informationBCG, DTPProportion who received BCG and DTP simultaneously is not defined; control group undefined; survival bias
Ghana47RuralRoutine surveillance17 7534–59 months12 monthsNo informationBCG, DTP, MVProportion who received BCG and DTP simultaneously is not defined; control group undefined; survival bias
Ghana81RuralRoutine surveillance18 3680–59 months12 monthsNo informationBCG, DTP, MVEffect of DTP estimated to be 0.15 (0.14 to 0.16). However, proportion who received BCG and DTP simultaneously is not defined; control group undefined; major survival bias as children are counted from birth though vaccination only administered later
  • DTP, diphtheria–tetanus–pertussis; HTMV, high-titre measles vaccine; IPV, inactivated polio vaccine; MV, measles vaccine.