... changecooking practices and habits. In addition to the appliance costs and operating costs, durability,appearance, ease of operation and maintenance, convenience and flexibility are among thosefactors ... Measures|190,0%1,0%2,0%3,0%4,0%5,0%6,0%700,0000100,000200,000300,000400,000500,000600,000700,000India Sub-SarahanAfricaChina Asia & Pacific Middle-East and North AfricaLatinAmericaIndustrializedcountriesDALYs per million peoplePercent of total health risksDisease burden ... Cancer (coal only) confounding not dealt with in a substantialminority; supported by studies of ambient air pollution and ETS and to some extent byanimal studies.• Cancer of nasopharynx and...