Table 7

Sensitivity analysis

Assumption/varied toAmount of difference
aTargeted programmes will miss 20% of SCDs targeted programmes will miss 10% of SCDsSignificant
bTargeted programmes will miss 20% of SCDs targeted programmes will miss 1% of SCDsSignificant
cHospital overheads as modelled hospital overheads doubledNot significant in populations > 25000
dCurrent cost of HPLC reagents cost of HPLC reagents halvedSignificant
eSCD births according to prevalence (no PND/TOP)/TOP in 20%Significant
fSCD births according to prevalence (no PND/TOP)/TOP in 10%Not significant
gMidwife selection will take 5 minutes midwife selection will take 10 minutesNot significant
hMidwife selection will take 5 minutes midwife selection will take 2 minutesNot significant
iTargeted programmes will incur extra clerical costs targeted programmes will not incur extra clerical costsNot significant in populations > 25000
jFixed costs as modelled fixed costs plus 20% and corresponding decrease in variable costsNot significant
kCMH hospitals overheads hospital overheads halvedNot significant
lTargeted programmes will overestimate at-risk population by 20% targeted programmes will overestimate at-risk population by 40%Not significant
mTargeted programmes will overestimate at risk population by 20% targeted programmes will accurately estimate at-risk populationNot significant