Table 1.

Patient costs as a percentage of annual income (average of mean) from[2]

	Studies n	Direct costs %	Lost income %	Total cost %
Individual
Reported income	22	21	37	58
Annual Wage2	35	9	21	30
Wage of lowest 20%3	34	25	64	89
Reported household income	7	16	22	39

² Computed from “gross average nominal monthly wage in the International Labour Organisation's global wage database http://www.ilo.org/travil/info/db/lang--en/index.htm

³ World Bank. Income Share Held by Lowest 20% in the World Bank Database http://data.workdbank.org/indicator/SI.DST.FRST.20/countries