Table 7.
Underlying distributions and confidence intervals of the parameters for the probabilistic sensitivity analysis
| Parameters | Baseline values | 95% CI | Distribution | References |
|---|---|---|---|---|
| Share of anemia due to IDA | ||||
| Pre-school-children % | 64 | (0.57: 0.70) | Beta | Kassebaum et al. and Asorbayire et al. [1, 6] |
| School age children % | 45 | (0.39: 0.51) | Beta | |
| Women % | 39 | (0.34: 0.44) | Beta | |
| Men % | 18 | (0.15: 0.20) | Beta | |
| Impact of anemia in preschool children | ||||
| Relative risk of mortality | 2.19 | (1.68: 3.36) | Lognormal | Brabin et al. [37] |
| IQ loss due to IDA (points) | 9 | (5.1: 13.4) | Gamma | Lozoff et al. [39] |
| Impact of IQ losses on wages % | 8 | (0.05: 0.01) | Beta | Psacharopoulos [53] |
| Intergeneration income correlationa | 0.55 | (0.50: 0.59) | Beta | Black, Solon [51, 52] |
| Impact of anemia in school children | ||||
| Relative risk to dropout (risk) | 1.25 | (1.01: 1.45) | Lognormal | Soemantri et al., Hutchinson et al., Bobonis et al., and Walker et al. [27, 30–33] |
| Reduced learning at school % | 10 | (0.087: 0.116) | Beta | Soemantri et al. and Hutchinson et al. [29, 30] |
| Intergeneration income correlationa | 0.35 | (0.31: 0.38) | Beta | Black [51] |
| Returns on education % | 10.9 | (0.079: 0.139) | Lognormalb | |
| Impact of anemia in adults on wages | ||||
| Moderate manual labor % | 5 | (0.045: 0.057) | Lognormalb | Basta [54] |
| Additional loss intense manual labor % | 12 | (0.11 0: 0.136) | Lognormalb | |
| Disability weights (DW) in score units | ||||
| Anemia mild (DW) | 0.005 | (0.002: 0.023) | Beta | Plessow et al. and Murray et al. [42, 43, 45] |
| Anemia moderate (DW) | 0.058 | (0.038: 0.086) | Beta | |
| Anemia severe (DW) | 0.164 | (0.112: 0.228) | Beta | |
| Intellectual disability mild (DW) | 0.031 | (0.018: 0.049) | Beta | |
| Intellectual disability moderate (DW) | 0.08 | (0.053: 0.114) | Beta | |
| Other parameters | ||||
| Life expectancy (years) | 58 | (56.2: 60.8) | Gamma | World Factbook [46] |
| Working life begins (years) | 15 | (13.2: 18.1) | Gamma | World Bank [47] |
| Working life ends (years) | 65 | (60.6: 71.4) | Gamma | World Bank [47] |
| Labor force participation % | 55 | (0.497: 0.571) | Beta | World Bank [47] |
| Projected income growth % | 3.5 | (0.039: 0.031) | Normal | World Bank [47] |
| Interest rate % | 3 | (0.034: 0.026) | Normal | Smith [49] |
| Mean monthly wage (CFA | 2015) | 64,575 | (54,575: 74,575) | Gamma | National Statistics Cote D’Ivoire [48] |
aIntergenerational income correlation coefficient is unadjusted for years of education on pre-school children where for school age children is adjusted for education
bThe percentages of those variables are converted into logarithms Log(var + 1) for PSA analysis