Formula | Malaria DALY Calculations and weightings | Assumption and source | |
---|---|---|---|
Uncomplicated | Severe | ||
DALYs | DALYs | ||
C | 0.1658 | 0.1658 | |
K | 0 | 0 | No age weighting applied |
r | 0.03 | 0.03 | A discount rate of 3% applied |
a | 2.5 | 2.5 | Mid point between sample cohort of 0–5 |
B | 0 | 0 | No age weighting applied |
LD (7 or 30 days) | 0.019178082 | 0.082191781 | The assumed duration of an uncomplicated malaria episodes was 7 days, expressed in years (7/365) and a severe episode, 30 days, expressed in years (30/365) |
D | 0.006 | 0.133 | IHME, GBD 2016–2017 (based on 2015 estimates at the most recent weightings available) |
Life expectancy | 72 | 72 | According to the Global Health Observatory 72.0 years was the average life expectancy at birth of the global population in 2016 https://www.who.int/gho/mortality_burden_disease/life_tables/situation_trends/en/ |
CFR malaria | 0.3% | 0.3% | WHO Health Information 2015—Indicators https://www.who.int/healthinfo/indicators/2015/chi_2015_33_mortality_malaria.pdf |
DALY per episode using the above parameters | |||
YLD | 0.019 | 0.082 | |
YLL | 30.31 |
The total number of DALYs was calculated by multiplying the DALYs weights with the annual sum of clinical and severe episodes predicted in the epidemiological model