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Table 1 List of symbols used and corresponding parameters and data sources

From: Estimating the distribution of morbidity and mortality of childhood diarrhea, measles, and pneumonia by wealth group in low- and middle-income countries

Parameter definition

Symbol

Parameter value

Data source

Proportion of attributable cases and deaths in quintile i

Aci, Adi

See Additional file 1: Section V

Authors’ estimation

Proportion of attributable cases and deaths averted by vaccine/treatment in quintile i

Acv,i, Adt,i

See Additional file 1: Section V

Authors’ estimation

Proportion of all cases and deaths attributable to risk and prognostic factors

TCa, TDa

See Additional file 1: Section IV

[14]

Proportion of all cases and deaths unattributable to risk and prognostic factors

TCua, TDua

See Additional file 1: Section IV

[14]

Disease-specific relative risk of risk factor j or prognostic factor l

RRj, RRl

See Table 2

Relative weight assigned to risk factor j or prognostic factor l

wj, ul

Authors’ estimation

Prevalence of risk factor j or prognostic factor l in quintile i

Pij, Pil

See Table 2

Vaccine effectiveness

E

MCV1: 0.85 (95% CI 0.83–0.87)

PCV: 0.06 (95% CI 0.03–0.09) for clinically diagnosed pneumonia

RV: 0.14 (95% CI 0.00–0.31) for diarrhea

[17,18,19]

Healthcare treatment efficacy in reducing mortality

Eff

Measles: 0.62 (95% CI 0.19–0.82)

Pneumonia: 0.70 (95% CI 0.52–0.82)

Diarrhea: 0.93 (95% CI 0.83–0.98)

[19, 32, 33]

  1. CI confidence interval, MCV1 measles vaccine first dose, PCV pneumococcal conjugate vaccine, RV rotavirus vaccine