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Table 4 Results of one-way sensitivity analyses

From: Efficacy of an incentive intervention on secondary prophylaxis for young people with rheumatic fever: a multiple baseline study

Factors Incremental costs Overall ICER Difference compared to the baseline ICER
Amount of medical resources post-intervention
Number of phones allocated + 20% $59,732 $1106 11.8%
-20% $47,124 $873 −11.8%
Number of visits before injections + 20% $60,921 $1128 14.0%
−20% $45,935 $851 −14.0%
Number of calls or texts before injection + 20% $54,887 $1016 2.7%
−20% $51,969 $962 −2.7%
Number of injections wasted + 20% $53,661 $994 0.4%
−20% $53,195 $985 −0.4%
Unit costs of medical resources pre/post-intervention
Unit cost of phone + 20% $59,732 $1106 11.8%
−20% $47,124 $873 −11.8%
Unit cost of visit for injection + 20% $53,697 $994 0.5%
−20% $53,159 $984 −0.5%
Unit cost of Penicillin (not including injection materials) + 20% $53,974 $1000 1.0%
−20% $52,882 $979 −1.0%
Unit cost of top up/ grocery voucher + 20% $56,588 $1048 5.9%
−20% $50,268 $931 −5.9%
Unit cost of 5 min phone call or text + 20% $53,834 $997 0.8%
−20% $53,022 $982 −0.8%