Current smoking prevalence and SHS exposure prevalence by gender and age in 1984, 1996 and 2002 in China.

Note: athe Chinese population was 1,299,880,000, reported by the National Bureau of Statistics; the population by gender and age groups were estimated from the WHO WPR-B dataset with a proportion of 82% (total Chinese population/total WHO WPR-B population in 2004) because they were not available from the bureau’s datasets; The numbers in each of the first four columns may not add up to the corresponding subtotals or totals due to rounding up during calculation.b LCD, lung cancer deaths, estimated from the WHO WPR-B dataset;c IHD, ischaemic heart disease death, estimated from the WHO WPR-B dataset;d,e data from a national survey in 1984 [36], in 1996 [35] and in 2002 [38].