Table 1.

Age-standardized disability-adjusted life year (DALY) rates by income (Global Burden of Disease: 2004 Update, WHO, Geneva, 2008).

	World			Low-income countries			Middle-income countries			High-income countries
	Disease or injury	DALYs (millions)	% of total DALYs	Disease or injury	DALYs (millions)	% of total DALYs	Disease or injury	DALYs (millions)	% of total DALYs	Disease or injury	DALYs (millions)	% of total DALYs
1	Lower respiratory infections	94.5	6.2	Lower respiratory infections	76.9	9.3	Unipolar depressive disorders	29.0	5.1	Unipolar depressive disorders	10.0	8.2
2	Diarrhoeal diseases	72.8	4.8	Diarrhoeal diseases	59.2	7.2	Ischaemic heart disease	28.9	5.0	Ischaemic heart disease	7.7	6.3
3	Unipolar depressive disorders	65.5	4.3	HIV/AIDS	42.9	5.2	Cerebrovascular disease	27.5	4.8	Cerebrovascular disease	4.8	3.9
4	Ischaemic heart disease	62.6	4.1	Malaria	32.8	4.0	Road traffic accidents	21.4	3.7	Alzheimer and other dementias	4.4	3.6
5	HIV/AIDS	58.5	3.8	Prematurity and low birth weight	32.1	3.9	Lower respiratory infections	16.3	2.8	Alcohol use disorders	4.2	3.4
6	Cerebrovascular disease	46.6	3.1	Neonatal infections	31.4	3.8	COPD	16.1	2.8	Hearing loss, adult onset	4.2	3.4
7	Prematurity and low birth weight	44.3	2.9	Birth asphyxia and birth trauma	29.8	3.6	HIV/AIDS	15.0	2.6	COPD	3.7	3.0
8	Birth asphyxia and birth trauma	41.7	2.7	Unipolar depressive disorders	26.5	3.2	Alcohol use disorders	14.9	2.6	Diabetes mellitus	3.6	3.0
9	Road traffic accidents	41.2	2.7	Ischaemic heart disease	26	3.1	Refractive errors	13.7	2.4	Trachea, bronchus, lung cancers	3.6	3.0
10	Neonatal infections and otherb	40.4	2.7	Tuberculosis	22.4	2.7	Diarrhoeal diseases	13.1	2.3	Road traffic accidents	3.1	2.6

COPD: chronic obstructive pulmonary disease.