2.

不同性别、年龄居民吸烟率

Ratios of smoking for male and female with different ages

Age (years)	Male				Female			X2	P
	Total	Smoking	Non-smoking		Total	Smoking	Non-smoking
40-60	2 019	1 135	884		2 390	55	2 335	1 614	< 0.001
61-80	1 369	515	854		1 313	39	1 274	490.9	< 0.001
> 80	89	39	50		70	6	64	23.99	< 0.001
Total	3 477	1 689	1 788		3 773	100	3 673	2053	< 0.001